JPS62291564A - Ozone detection element - Google Patents
Ozone detection elementInfo
- Publication number
- JPS62291564A JPS62291564A JP61133890A JP13389086A JPS62291564A JP S62291564 A JPS62291564 A JP S62291564A JP 61133890 A JP61133890 A JP 61133890A JP 13389086 A JP13389086 A JP 13389086A JP S62291564 A JPS62291564 A JP S62291564A
- Authority
- JP
- Japan
- Prior art keywords
- ozone
- detection element
- acid
- sample
- leuco
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 238000001514 detection method Methods 0.000 title claims abstract description 29
- 239000002253 acid Substances 0.000 claims abstract description 17
- 239000003381 stabilizer Substances 0.000 claims abstract description 17
- AAAQKTZKLRYKHR-UHFFFAOYSA-N triphenylmethane Chemical compound C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 AAAQKTZKLRYKHR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000010410 layer Substances 0.000 claims abstract description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical group OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 14
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 7
- OAZWDJGLIYNYMU-UHFFFAOYSA-N Leucocrystal Violet Chemical group C1=CC(N(C)C)=CC=C1C(C=1C=CC(=CC=1)N(C)C)C1=CC=C(N(C)C)C=C1 OAZWDJGLIYNYMU-UHFFFAOYSA-N 0.000 claims description 6
- 239000011247 coating layer Substances 0.000 claims description 3
- 150000007522 mineralic acids Chemical group 0.000 claims description 3
- 150000007524 organic acids Chemical class 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims 1
- 238000011161 development Methods 0.000 abstract description 8
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 239000004820 Pressure-sensitive adhesive Substances 0.000 abstract 1
- 238000005470 impregnation Methods 0.000 abstract 1
- 239000000975 dye Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 238000002835 absorbance Methods 0.000 description 8
- 238000000862 absorption spectrum Methods 0.000 description 7
- 230000003595 spectral effect Effects 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 5
- KEQFTVQCIQJIQW-UHFFFAOYSA-N N-Phenyl-2-naphthylamine Chemical compound C=1C=C2C=CC=CC2=CC=1NC1=CC=CC=C1 KEQFTVQCIQJIQW-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 238000005273 aeration Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000004040 coloring Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 229910001437 manganese ion Inorganic materials 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- RNVCVTLRINQCPJ-UHFFFAOYSA-N o-toluidine Chemical compound CC1=CC=CC=C1N RNVCVTLRINQCPJ-UHFFFAOYSA-N 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- LBLYYCQCTBFVLH-UHFFFAOYSA-N 2-Methylbenzenesulfonic acid Chemical compound CC1=CC=CC=C1S(O)(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical compound C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- ZKURGBYDCVNWKH-UHFFFAOYSA-N [3,7-bis(dimethylamino)phenothiazin-10-yl]-phenylmethanone Chemical compound C12=CC=C(N(C)C)C=C2SC2=CC(N(C)C)=CC=C2N1C(=O)C1=CC=CC=C1 ZKURGBYDCVNWKH-UHFFFAOYSA-N 0.000 description 1
- 238000011481 absorbance measurement Methods 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005367 electrostatic precipitation Methods 0.000 description 1
- 239000012717 electrostatic precipitator Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- QTWZICCBKBYHDM-UHFFFAOYSA-N leucomethylene blue Chemical compound C1=C(N(C)C)C=C2SC3=CC(N(C)C)=CC=C3NC2=C1 QTWZICCBKBYHDM-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- -1 various test strips Chemical compound 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Electrostatic Separation (AREA)
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
（産業上の利用分野）
本発明は、オゾン検出要素に関するもので、より詳細に
は染料ロイコ体の酸化による発色を利用してオゾンを定
量的に検出するための要素に関する。Detailed Description of the Invention 3. Detailed Description of the Invention (Field of Industrial Application) The present invention relates to an ozone detection element, and more specifically, to a method for quantifying ozone using color development due to oxidation of a leuco dye. Concerning elements for detecting information.
（従来の技術）
電気集塵の原理を利用した空気清浄機においては、コロ
ナ放ＭＩＫよりオゾンが発生する。このオゾンを分解す
る目的で活性炭フィルターが使用されているが、活性炭
のオゾン分解能は継続使用中に次第に低下するので、該
フィルターにおけるオゾン透過省をモニターとして活性
炭フィルター交換時期を表示することが望まれている。(Prior Art) In an air cleaner using the principle of electrostatic precipitation, ozone is generated from corona emission MIK. Activated carbon filters are used to decompose this ozone, but since the ozone decomposition ability of activated carbon gradually decreases during continuous use, it is desirable to monitor the ozone permeation through the filter and indicate when it is time to replace the activated carbon filter. ing.
従来オゾンの定量法としては次のものが知られている。The following methods are conventionally known for quantifying ozone.
（１）ヨウ化カリウム水溶液の着色を吸光度で測定する
か、遊離ヨウ素を滴定する方法、（１１）ガス中のオゾ
ンの紫外部吸収（２５３，７Ｉ１１８Ｌ）を測定する方
法、
（ｉｉｉ）ｏ−ジクロロベンゼン溶液中のＮ−フェニル
ナフチルアミンの発色（４００〜４６５ｍμ）を利用す
る方法、
（ＩＶ）亜マンガンイオンのマンガンイオンへノ酸化を
ｏ−トルイジンで発色検出する方法。(1) A method of measuring the coloration of an aqueous potassium iodide solution by absorbance or titrating free iodine, (11) A method of measuring the ultraviolet absorption (253,7I118L) of ozone in gas, (iii) A method of measuring the ultraviolet absorption of ozone in gas (253,7I118L), (iii) (IV) A method that utilizes the color development (400 to 465 mμ) of N-phenylnaphthylamine in a chlorobenzene solution; (IV) A method that color-detects the oxidation of manganese ions to manganese ions using o-toluidine.
（発明が解決しようとする問題点）
しかしながら、従来の方法はオゾン量を簡便な手段で定
量的に検出するための要素に適用するには未だ不適当で
あることがわかった
例えば、上記（１）の方法で、ヨードカリ澱粉紙を使用
する場合には水分を含浸させる必要があり、保水剤を含
浸したものではうまく発色せず、しかも黒褐色に変色す
ることが確認された。また、上記（１１）の紫外線吸収
を利用する方法では、格別の高価な装置が必要となり１
手軽な検出要素としては到底用い得ない。上記（ｉｉｉ
）の方法は、溶液そのものが初期より着色している上
に、反応性にも乏しく吸光度変化も少なく、検出要素と
しては不適当である。更に、上記（ＩＶ）の方法は、分
析法としては適当であるとしても、やはり手軽な検出要
素としては不適当である。(Problems to be Solved by the Invention) However, it has been found that the conventional methods are still unsuitable for application to elements for quantitatively detecting the amount of ozone by simple means. ) method, when using iodopotassium starch paper, it is necessary to impregnate it with water, and it was confirmed that paper impregnated with a water-retaining agent did not develop color well and turned blackish brown. In addition, the method using ultraviolet absorption in (11) above requires extremely expensive equipment.
It cannot be used as a simple detection element. Above (iii
In the method (2), the solution itself is colored from the beginning, and it also has poor reactivity and little change in absorbance, making it unsuitable as a detection element. Furthermore, although the method (IV) above is suitable as an analysis method, it is still inappropriate as a simple detection element.
従って、本発明は、試験紙のようにオゾンの検出が必要
である所に手軽に位置させることにより、オゾンの量を
定量的に且つ明瞭な発色により検出し得ると共に、オゾ
ン以外の要因による発色や変色が防止されたオゾン検出
要素を提供することを課題とする。Therefore, the present invention makes it possible to detect the amount of ozone quantitatively and clearly by placing it in a place where it is necessary to detect ozone, such as a test paper, and also to detect the amount of ozone caused by factors other than ozone. An object of the present invention is to provide an ozone detection element that is prevented from changing color or discoloration.
（問題点を解決するための手段）
木発明者等は、種々の染料ロイコ体の内でもトリフェニ
ルメタン系染料ロイコ体を選択し、且つこれを酸安定剤
と組合せたものは、オゾンと定量的に反応し、表示色と
しても鮮明な色が得られ、しかもオゾン酸化以外の要因
で着色乃至退色する傾向が少なく、オンン指示薬として
極めて優れており、添加された酸安定剤によってその着
色安定性も向−トし且つ発色性も向上することを見出し
た。(Means for Solving the Problems) The inventors selected the triphenylmethane dye leuco dye from among various leuco dyes, and combined this with an acid stabilizer, which was quantified with ozone. It reacts with the liquid and provides clear display colors, and has little tendency to color or fade due to factors other than ozone oxidation, making it extremely excellent as an on-on indicator, and its color stability is improved by the added acid stabilizer. It has also been found that the coloring properties are improved.
即ち１本発明によれば、トリフェニルメタン系染料ロイ
コ体と酸安定剤とを含有することを特徴とするオゾン検
出要素が提供される。上述したトリフェニルメタン系染
料ロイコ体と酸安定剤とを含む組成物は、適当な支持体
上に塗布層乃至含浸層として設けて用いるのがよい。That is, according to one aspect of the present invention, there is provided an ozone detection element characterized by containing a triphenylmethane dye leuco compound and an acid stabilizer. The composition containing the above-mentioned triphenylmethane dye leuco compound and an acid stabilizer is preferably used by providing it as a coating layer or an impregnated layer on a suitable support.
（作 用）
本発明のオゾン検出要素の一例を示す第１図において、
この検出要素１は、紙或いはフィルム等から成る支持体
２と、支持体の一方の表面に施された。トリフェニルメ
タン系染料ロイコ体及び酸安定剤を含有する組成物の塗
布層乃至含浸層３とから成っており、支持体２の裏面に
は、検出要素１を必要な位置に固定するために感圧接着
剤層４が設けられていてもよい。本発明の検出要素は、
水分で湿潤させる等の操作を必要とせずに、所謂ドライ
の状態でオゾンの検出に使用できるものであり、安定し
て該ロイコ色素に特有の４鯉明な色相の発色がオゾン量
に対して定量的に得られるものである。(Function) In FIG. 1 showing an example of the ozone detection element of the present invention,
This detection element 1 was applied to a support 2 made of paper or film, and one surface of the support. It consists of a coating layer or an impregnated layer 3 of a composition containing a triphenylmethane dye leuco compound and an acid stabilizer, and a sensitive layer is provided on the back side of the support 2 to fix the detection element 1 at a required position. A pressure adhesive layer 4 may also be provided. The detection element of the present invention is
It can be used to detect ozone in a so-called dry state without the need for operations such as moistening with water, and the color development of the four bright hues characteristic of this leuco dye is stable and changes depending on the amount of ozone. It can be obtained quantitatively.
本発明のオゾン検出要素の擾れた作用は、第２図と第３
及び４図との対比並びに第５図と第６及び７図との対比
から直ちに明白となろう。The effect of the ozone detection element of the present invention is shown in Figs. 2 and 3.
It will be immediately clear from the comparison with FIGS. and 4, and the comparison between FIG. 5 and FIGS. 6 and 7.
試料ｌＡニ
トリフェニルメタン系染料ロイコ体の代表例としてロイ
コクリスタルバイオレット°１）を用いた。溶媒として
トルエン・メタノール＝３：２の混合溶媒を使用し、ロ
イコクリスタルバイオレフ） ０．０４％及びリン酸０
．０２５％の濃度に溶解し、試ネ’ＩＩＡとした。Sample 1A Leuco crystal violet °1) was used as a representative example of the nitriphenylmethane dye leuco compound. A mixed solvent of toluene/methanol = 3:2 was used as the solvent, and 0.04% of Leuco Crystal Bioref) and 0.04% of phosphoric acid were used.
．． The sample was dissolved to a concentration of 0.025% and used as a sample IIA.
註１）
試料ＩＢ・
試料ＩＡの溶媒を用いロイコクリスタルバイオレット単
独をｏ、ｏＢ≦濃度の溶液とした。Note 1) Using the solvents of Sample IB and Sample IA, leuco crystal violet alone was made into a solution with o, oB≦concentration.
試料２：
他のロイコ色素の例として、ペンンイル口イコメチレン
ブルー゛２）を用いた。試料ＩＡの溶媒を使用シ、ペン
ゾイルロイコメチレンブルーヲ０．０４％の濃度に溶解
し、試＃４２の溶液とした。Sample 2: As an example of another leuco dye, Pennyl-Icomethylene Blue 2) was used. Using the solvent of sample IA, penzoyl leucomethylene blue was dissolved to a concentration of 0.04% to obtain a solution of sample #42.
註２）
試料３：
溶媒として、モノクロルベンゼン：メタノール＝ｌＯ：
１の混合溶媒を使用し、Ｎ−フェニル−２−ナフチルア
ミンの０．４％濃度の溶液とした。Note 2) Sample 3: As a solvent, monochlorobenzene: methanol = lO:
1 was used to prepare a solution of N-phenyl-2-naphthylamine at a concentration of 0.4%.
各試料の３００１１／に、オゾン濃度４０．１ｐｐ１１
のオゾン含有空気を、１．８５ｉ！、／分の流賃で通気
させ、通気時間と各試料の吸光度との関係を調べた。吸
光度の測定には、試料ＩＡ及びＩＢの場合には５９０
ｍ川、試料２の場合には４６０厘μ、試料３の場合には
４１０＋ｓｇの各波長の光を用いた。得られた結果を、
試料ＩＡ及びＩＢについては第２図、試料２については
第３図、及び試料３については第４図に夫々示す。また
、各試料について、各通気時間に対応して、分光吸収ス
ペクトルを調べた。試料ＩＡについての分光吸収スペク
トルを第５図に、試料２についての分光吸収スペクトル
を第６図に、試料３についての分光吸収スペクトルを第
７図に夫々示す。Ozone concentration 40.1pp11 in 30011/ of each sample
of ozone-containing air at 1.85i! The sample was aerated at a flow rate of ,/min, and the relationship between the aeration time and the absorbance of each sample was investigated. 590 for samples IA and IB for absorbance measurements.
In the case of sample 2, light of 460 μm and in the case of sample 3, light of each wavelength of 410+sg was used. The obtained results,
Samples IA and IB are shown in FIG. 2, sample 2 in FIG. 3, and sample 3 in FIG. 4, respectively. Further, for each sample, the spectral absorption spectrum was examined corresponding to each ventilation time. The spectral absorption spectrum of sample IA is shown in FIG. 5, the spectral absorption spectrum of sample 2 is shown in FIG. 6, and the spectral absorption spectrum of sample 3 is shown in FIG. 7.
トリフェニルメタン系以外のロイコ色！ （ベンゾイル
ロイコメチレンブルー）を用いた場合は。Leuco color other than triphenylmethane type! (benzoylleucomethylene blue).
第３図に示す通り、初期に誘導期があり、その後は直線
的に吸光度の増加が認められるが、第６図に示す通り、
全波長域での吸光度増加のため、色調が黒褐色へと変化
し、表示色として適当でない。また、公知のＮ−フェニ
ル−２−ナフチルアミン指示薬の場合、溶液そのものが
初期より着色（黄色）している上に、反応性に乏しく、
しかも第７図に示す通り色相の変化も得られないことか
ら、本発明の目的には適さない。As shown in Figure 3, there is an initial induction period, and after that, a linear increase in absorbance is observed, but as shown in Figure 6,
Due to the increase in absorbance over the entire wavelength range, the color tone changes to blackish brown, making it unsuitable as a display color. In addition, in the case of the known N-phenyl-2-naphthylamine indicator, the solution itself is colored (yellow) from the beginning and has poor reactivity.
Moreover, as shown in FIG. 7, no change in hue can be obtained, so this is not suitable for the purpose of the present invention.
また、ロイコクリスタルバイオレットを単独で使用した
場合には、第２図の曲線ＩＢに示す通り、溶液は極めて
不安定で空気中に放置するだけで青紫色への変化がみら
れる。これに対して、本発明に従い、酸安定剤と組合せ
ると、第２図の曲線ＩＡに示す通り、溶液は著しく安定
化すると共に、オゾンとの反応性も増大し、はぼ定量的
な反応が達成される。しかも第５図から理解されるよう
に、オゾンとの反応物は５９０ｍｇ附近だけに吸収を有
し、オゾンとの接触によりｉ’？紫色の増加が認められ
ることから、表示色としても適していることが了解され
よう。Furthermore, when leuco crystal violet is used alone, the solution is extremely unstable and changes to blue-purple simply by being left in the air, as shown by curve IB in FIG. On the other hand, when combined with an acid stabilizer according to the present invention, the solution is significantly stabilized and the reactivity with ozone is increased, as shown by curve IA in FIG. is achieved. Moreover, as can be understood from FIG. 5, the reaction product with ozone has absorption only around 590 mg, and due to contact with ozone, i'? Since an increase in purple color is observed, it can be understood that it is also suitable as a display color.
（発明の作用効果）
本発明のオゾン検出要末は、各種試験紙のように、オゾ
ンの検出が必要である所に−「軽に位置させて、オゾン
の量を定１的に且つ明瞭な発色により検出し得ると共に
、オゾン以外の要因による発色や変色が防止されるとい
う利点を有し、またａ１１定に当っても、水による湿潤
等の操作が不安でＦ゛ライメンテナンス可能であるとい
う付加的利点をも有する。(Operation and Effect of the Invention) The ozone detection device of the present invention can be placed lightly in places where it is necessary to detect ozone, such as various test strips, so that the amount of ozone can be detected uniformly and clearly. It has the advantage of being able to be detected by color development and preventing color development or discoloration due to factors other than ozone.Also, even if it is A11 constant, operations such as wetting with water are unstable and F-light maintenance is possible. It also has additional benefits.
かくして、このオゾン検出要素は、オゾンを発生する各
種機械類、例えばコロナ放電を利用する空気清浄機、静
電集塵機、電子写真複写機、放電加工機等のオゾンモニ
ター等として有用である。Thus, this ozone detection element is useful as an ozone monitor for various machines that generate ozone, such as air purifiers that utilize corona discharge, electrostatic precipitators, electrophotographic copying machines, electrical discharge machines, and the like.
（実施例）
本発明に用いるトリフェニルメタン系染料ロイコ体とし
ては、それ自体公知の任意のものを使用し得るが、下記
一般式
式中、Ｒ１、Ｒ２、Ｒ３及びＲ４の各々は水素原子又は
炭素数４以下のアルキル基であり、Ｙは未置換或いはア
ミン基、カルポキンル基或いはハロゲンで置換されたア
リール基であり、環Ａ及びＢはハロゲン原子又はアルキ
ル基で置換されていてもよい、
で表わされるロイコ体である。基Ｙｔｌ−構成するアリ
ール基はフェニル基又はナフチル基であることが望まし
い。(Example) As the triphenylmethane dye leuco compound used in the present invention, any known one can be used, but in the following general formula, each of R1, R2, R3 and R4 is a hydrogen atom or is an alkyl group having 4 or less carbon atoms, Y is unsubstituted or an aryl group substituted with an amine group, a carpoquine group, or a halogen, and rings A and B may be substituted with a halogen atom or an alkyl group. It is a leuco body expressed. The aryl group constituting the Ytl group is preferably a phenyl group or a naphthyl group.
適当な例はこれに限定されないが次の第１表の通りであ
る。Suitable examples include, but are not limited to, Table 1 below.
酸安定剤としては、ＰＫａが３．０以下の無機酸及び／
又は有機酸が使用され、例えばリン酸、塩酸、硝酸、硫
酸、亜リン酸等の無機酸や、酢酸、クエン酸、乳酸、シ
ュウ酸、酒石酸、リンゴ酸、安−ａ 香ｍ、トルエンス
ルホン酸、メタンスルホン酸等の有機酸が使用される。As acid stabilizers, inorganic acids with a PKa of 3.0 or less and/or
Or organic acids are used, such as inorganic acids such as phosphoric acid, hydrochloric acid, nitric acid, sulfuric acid, phosphorous acid, acetic acid, citric acid, lactic acid, oxalic acid, tartaric acid, malic acid, ammonium chloride, toluenesulfonic acid, etc. , methanesulfonic acid, and other organic acids are used.
好適な酸安定剤はリン酸である。A preferred acid stabilizer is phosphoric acid.
トリフェニルメタン系染料ロイコ体と酸安定剤との割合
は、安定性及び発色性を堪案して種々変化させ得るが、
一般にロイコ体１重量部当り酸安定剤が０．５乃至１０
．０重量部、特に１．０乃至５．０重量部となる割合い
で用いるのがよい。The ratio of the triphenylmethane dye leuco compound and the acid stabilizer can be varied depending on stability and color development.
Generally, the amount of acid stabilizer is 0.5 to 10 per part by weight of leuco body.
．． It is preferable to use it in a proportion of 0 parts by weight, particularly 1.0 to 5.0 parts by weight.
上述した発色組成物には、所望により任意の配合剤、添
加剤を配合側ることができ、例えば結着剤乃至糊剤、保
温剤、充填剤、界面活性剤等を用いることができる０紙
、プラスチック等の基体に塗布する量は、広範囲に変化
させ得るが、一般に５０乃至５００ ａ＋ｇ／ｌｓ２
の塗工量で設けるのがよい。The above-mentioned coloring composition may contain any compounding agents or additives as desired, such as binders or pastes, heat insulating agents, fillers, surfactants, etc. The amount applied to a substrate such as plastic can vary over a wide range, but is generally between 50 and 500 a+g/ls2.
It is recommended that the amount of coating be applied.
実施例 １
トルエン：メタノール＝３：２の混合溶媒を使用し、ロ
イコクリスタルバイオレット及びリン酸を下記の濃度で
含む溶液を調製した。Example 1 A solution containing leuco crystal violet and phosphoric acid at the following concentrations was prepared using a mixed solvent of toluene:methanol=3:2.
試料ｌ
ロイコクリスタルバイオレット ０．２％リン酸
０．２％試料２
０イコクリスタルバイオレソト ０．０４％リン酸
０．２％Ｌ記溶液をか
紙に対して１ｍｊ／枚の量で含浸させ、乾燥してオゾン
検出要素を作成した。Sample l Leuco crystal violet 0.2% phosphoric acid
0.2% Sample 2 0 Icocrystal Bioresotho 0.04% Phosphoric Acid
A sheet of paper was impregnated with 0.2% L solution in an amount of 1 mj/sheet and dried to prepare an ozone detection element.
このオゾン検出要素を、コロナ放電型空気清浄閥の活性
フィルターに取付け、連続的に低濃度のオゾン（０゜Ｏ
ｌ−０，０３ｐｐｍ）に曝露させた。曝露開冶、２日後
、５日後、１２日後及び２７日後のオゾン検出要素の発
色状態を観察した。This ozone detection element is attached to the active filter of a corona discharge type air purifier and continuously detects low concentration ozone (0°O
l-0.03 ppm). The state of color development of the ozone detection element was observed 2 days, 5 days, 12 days, and 27 days after the exposure.
清浄機の使用時間の経過と共に検出要素に、次りに濃度
の高くなる青紫色の発色が認められた。As the usage time of the purifier progressed, a blue-purple color was observed on the detection element, which became increasingly concentrated.
第１図は本発明のオゾン検出要素の一例の断面図であり
、
第２図は試料ＩＡ及びＩＢについてのオゾン通気時間と
吸光度との関係を示す線図、
第３図は試料２についてのオゾン′ＩＩＩ気時間と吸光
度との関係を示す線図、
第４図は試料３についてのオゾン通気時間と吸光度との
関係を示す線図、
第５図は試料ｌＡの通気時間ごとの分光吸収スペクトル
、
第６図は試料２の通気時間ごとの分光吸収スペクトル、
第７図は試料３の通気時間ごとの分光吸収スペクトルで
ある。
ｌはオゾン検出要素、２は基体、３は発色層を夫々示す
・
特許出願人 株式会社ダスキン
第１図
第２国
遁屁吟門（分）
ざ 永・釈
曹宛・咥
第 ５ 図
第 ６３FIG. 1 is a cross-sectional view of an example of the ozone detection element of the present invention, FIG. 2 is a diagram showing the relationship between ozone ventilation time and absorbance for Samples IA and IB, and FIG. 3 is a diagram showing the relationship between ozone ventilation time and absorbance for Sample 2. Figure 4 is a diagram showing the relationship between ozone ventilation time and absorbance for sample 3, Figure 5 is a spectral absorption spectrum for each ventilation time of sample 1A, FIG. 6 shows the spectral absorption spectrum of sample 2 at each aeration time, and FIG. 7 shows the spectral absorption spectrum of sample 3 at each aeration time. 1 indicates the ozone detection element, 2 indicates the substrate, and 3 indicates the coloring layer. Patent applicant Duskin Co., Ltd. Figure 1 Figure 2 Kokutontonginmon (minute) Za Naga, Shakuso, 咥 Figure 5 Figure 63
Claims (5)
を含有することを特徴とするオゾン検出要素。(1) An ozone detection element characterized by containing a triphenylmethane dye leuco compound and an acid stabilizer.
を含有する発色剤組成物が支持体に塗布層乃至含浸層と
して設けられている特許請求の範囲第１項記載のオゾン
検出要素。(2) The ozone detection element according to claim 1, wherein a color former composition containing a leuco triphenylmethane dye and an acid stabilizer is provided on a support as a coating layer or an impregnated layer.
酸から成る特許請求の範囲第１項記載のオゾン検出要素
。(3) The ozone detection element according to claim 1, wherein the acid stabilizer is an inorganic or organic acid having a PKa of 3.0 or less.
り０．５乃至１０重量％の量で存在する特許請求の範囲
第１項記載のオゾン検出要素。(4) The ozone detection element according to claim 1, wherein the acid stabilizer is present in an amount of 0.5 to 10% by weight based on the triphenylmethane dye leuco body.
スタルバイオレットであり、酸安定剤がリン酸である特
許請求の範囲第１項記載のオゾン検出要素。(5) The ozone detection element according to claim 1, wherein the triphenylmethane dye leuco substance is leuco crystal violet, and the acid stabilizer is phosphoric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61133890A JPS62291564A (en) | 1986-06-11 | 1986-06-11 | Ozone detection element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61133890A JPS62291564A (en) | 1986-06-11 | 1986-06-11 | Ozone detection element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62291564A true JPS62291564A (en) | 1987-12-18 |
Family
ID=15115491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61133890A Pending JPS62291564A (en) | 1986-06-11 | 1986-06-11 | Ozone detection element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62291564A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03206956A (en) * | 1990-01-09 | 1991-09-10 | Sharp Corp | substance detection element |
| US6117685A (en) * | 1997-05-22 | 2000-09-12 | Sakura Color Products Corporation | Ozone indicator and ozone detecting ink |
| US6659036B2 (en) * | 1999-12-15 | 2003-12-09 | Sakura Color Products Corporation | Plasma sterilization indicator |
| EP1394541A3 (en) * | 2002-08-28 | 2004-06-09 | Nippon Telegraph and Telephone Corporation | Ozone gas sensing element, detection apparatus, and measurement method |
| CN100460856C (en) * | 2002-08-28 | 2009-02-11 | 日本电信电话株式会社 | Ozone sensitive element |
-
1986
- 1986-06-11 JP JP61133890A patent/JPS62291564A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03206956A (en) * | 1990-01-09 | 1991-09-10 | Sharp Corp | substance detection element |
| US6117685A (en) * | 1997-05-22 | 2000-09-12 | Sakura Color Products Corporation | Ozone indicator and ozone detecting ink |
| US6336964B1 (en) | 1997-05-22 | 2002-01-08 | Sakura Color Products Corporation | Ozone indicator and ozone sensor ink |
| US6659036B2 (en) * | 1999-12-15 | 2003-12-09 | Sakura Color Products Corporation | Plasma sterilization indicator |
| EP1394541A3 (en) * | 2002-08-28 | 2004-06-09 | Nippon Telegraph and Telephone Corporation | Ozone gas sensing element, detection apparatus, and measurement method |
| US7364700B2 (en) | 2002-08-28 | 2008-04-29 | Nippon Telegraph And Telephone Corporation | Ozone gas sensing element, detection apparatus, and measurement method |
| CN100460856C (en) * | 2002-08-28 | 2009-02-11 | 日本电信电话株式会社 | Ozone sensitive element |
| CN100460855C (en) * | 2002-08-28 | 2009-02-11 | 日本电信电话株式会社 | Ozone Gas Measuring Device |
| US7615192B2 (en) | 2002-08-28 | 2009-11-10 | Nippon Telegraph And Telephone Corporation | Ozone gas measurement apparatus |
| US7662636B2 (en) | 2002-08-28 | 2010-02-16 | Nippon Telegraph And Telephone Corporation | Ozone gas sensing element, detection apparatus, and measurement method |
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