SU1631413A1 - Method of analysis of furfuryl alcohol in air - Google Patents
Method of analysis of furfuryl alcohol in air Download PDFInfo
- Publication number
- SU1631413A1 SU1631413A1 SU874313465A SU4313465A SU1631413A1 SU 1631413 A1 SU1631413 A1 SU 1631413A1 SU 874313465 A SU874313465 A SU 874313465A SU 4313465 A SU4313465 A SU 4313465A SU 1631413 A1 SU1631413 A1 SU 1631413A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- furfuryl alcohol
- diethyl ether
- air
- sample
- passing
- Prior art date
Links
- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Chemical compound OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 238000004458 analytical method Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000003463 adsorbent Substances 0.000 claims description 2
- 238000004587 chromatography analysis Methods 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract description 31
- 238000001704 evaporation Methods 0.000 abstract description 8
- 239000007864 aqueous solution Substances 0.000 abstract description 2
- 239000002594 sorbent Substances 0.000 abstract description 2
- 239000012736 aqueous medium Substances 0.000 abstract 1
- 238000003795 desorption Methods 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000000741 silica gel Substances 0.000 description 6
- 229910002027 silica gel Inorganic materials 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000006286 aqueous extract Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 239000012259 ether extract Substances 0.000 description 1
- 125000004494 ethyl ester group Chemical group 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
- G01N30/08—Preparation using an enricher
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Изобретение относитс к аналитический химии/к способам количественного определени фурфурилового спирта. Цель изобретени - повышение точности определени фурфурилового спирта. В способе количественного определени фурфурилового спирта провод т адсорбцию его из воздуха пропусканием анализируемой пробы через сорбент и десорбцию диэтиловым эфиром. Дл исключени потерь в пробу вводитс 1 мл воды и проводитс испарение диэтилового эфира при комнатной температуре путем встр хивани пробы в течение 10-15 мин, в результате чего фурфуриловый спирт переходит в водную среду, а диэтило- вый эфир испар етс . Водный раствор фурфурилового спирта вводитс в газовый хроматограф. 2 табл.This invention relates to analytical chemistry / methods for the quantitative determination of furfuryl alcohol. The purpose of the invention is to improve the accuracy of determination of furfuryl alcohol. In the method of quantitative determination of furfuryl alcohol, it is adsorbed from air by passing the sample under analysis through a sorbent and desorption with diethyl ether. To eliminate losses, 1 ml of water is introduced into the sample and the diethyl ether is evaporated at room temperature by shaking the sample for 10-15 minutes, resulting in furfuryl alcohol passing into the aqueous medium and the diethyl ether evaporating. An aqueous solution of furfuryl alcohol is introduced into a gas chromatograph. 2 tab.
Description
ЁYo
Изобретение относитс к аналитической химии, в частности к способам газохроматог- рафичесго определени фурфурилового спирта в воздухе,и может использоватьс санитарно-гигиеническими и прбмышленно- санитарными лаборатори ми.The invention relates to analytical chemistry, in particular, to gas chromatographic methods for determining furfuryl alcohol in the air, and can be used by sanitary and hygienic and industrial sanitary laboratories.
Цель изобретени - повышение точности определени .The purpose of the invention is to improve the accuracy of determination.
Анализируемый воздух пропускают через кип щий слой адсорбента, в качестве которого используют силикагель. После завершени процесса пробоотбора силикагель перенос т в трубку-экстрактор, в которой через слой силикагел пропускают дискретно экстрагент - диэтиловый эфир. Экстракт собирают в емкость, содержащуюThe analyzed air is passed through the boiling bed of the adsorbent, which is silica gel. After the sampling process is completed, the silica gel is transferred to an extractor tube, in which a discrete extractant, diethyl ether, is passed through a layer of silica gel. The extract is collected in a container containing
дистиллированную воду. Эфирный экстракт перемешивают с водой до полного удалени экстрагента и аликвотную часть водного раствора ввод т в хроматограф через испаритель с температурой 145° С в потоке газа- носител (азота , расход 50 мл/мин) в колонку (2X3 мм) с сорбентом 5%-ного апи- езона 1 на хроматоне N-AW-DMCS. Температура- колонки 115° С, детектор пламенно-ионизационный . Количественные расчеты по градуиро- вочному графику высота (площадь) пика - концентраци в растворе.distilled water. The ether extract is mixed with water until the extractant is completely removed and an aliquot of the aqueous solution is introduced into the chromatograph through an evaporator with a temperature of 145 ° C in a carrier gas stream (nitrogen, flow rate 50 ml / min) into a column (2 x 3 mm) with a sorbent of 5% - on the chromatone N-AW-DMCS. Temperature - columns 115 ° C, flame ionization detector. Quantitative calculations according to the graduation schedule peak height (area) —concentration in solution.
Пример. Воздух со скоростью 5 л/мин прот гивают через поглотитель Зайцева с 2 г силикагел . Силикагель из поглотител перенос т в трубку экстрактор (200x8 мм) иExample. Air at a rate of 5 l / min is drawn through a Zaitsev absorber with 2 g of silica gel. Silica gel from the absorber is transferred to the extractor tube (200x8 mm) and
ОABOUT
соwith
ЈJ
0000
провод т десорбцию адсорбированных веществ 4 мл диэтилового эфира, который порци ми (по 0,5 мл) пропускают через слой силикагел . Отбирают первые 2 мл экстракта в центрифужную пробирку, содержащую 1 мл дистиллированной воды (соотношение экстракгвода 1:0,5) и содержимое пробирки активно встр хивают в течение 10-15 мин до полного испарени сло эфира. Полученный водный экстракт в количестве 5-10 мкл ввод т в газовый хроматограф.The adsorbed substances are desorbed with 4 ml of diethyl ether, which is passed in portions (0.5 ml each) through a layer of silica gel. The first 2 ml of extract is taken into a centrifuge tube containing 1 ml of distilled water (extraction ratio 1: 0.5) and the contents of the tube are actively shaken for 10-15 minutes until complete evaporation of the ether layer. The resulting aqueous extract in the amount of 5-10 µl is introduced into a gas chromatograph.
Результаты определени фурфурилово- го спирта по предлагаемому и известному способам приведены в табл. 1.The results of determining furfuryl alcohol according to the proposed and known methods are given in Table. one.
Как видно из табл. 1, при испарении дм- этилового эфира согласно прототипу количество определ емого фурфурилового спирта составл ет лишь 44% от вз того, тогда как при испарении эфира по предлагаемому способу фурфуриловый спирт обнаруживаетс практически полностью (96% от вз того), что значительно повышает точность определени .As can be seen from the table. 1, according to the prototype, when dm-ethyl ether is evaporated, the amount of determined furfuryl alcohol is only 44% of that, while during the evaporation of the ether according to the proposed method, furfuryl alcohol is found almost completely (96% of the time), which significantly increases the accuracy of determination .
В табл, 2 приведены граничные и оптимальные значени температуры испарени диэтилового эфира. Как видно из табл. 2, оптимальна температура испарени диэРезультаты определени фурфурилового спирта с помощью предлагаемого метода и прототипаTable 2 shows the boundary and optimal values of the evaporation temperature of diethyl ether. As can be seen from the table. 2, optimum evaporation temperature; Dielectric measurements of furfuryl alcohol using the proposed method and prototype
Граничные и оптимальные температуры испарени диэтилового эфираBoundary and optimum evaporation temperatures of diethyl ether
тилового эфира, обеспечивающа необходимую точность определени фурфурилового спирта, составл ет 25°С.ethyl ester, providing the necessary accuracy in determining furfuryl alcohol, is 25 ° C.
При 15° С точность остаетс такой же, но врем испарени (встр хивани ) диэтилового эфира при этом увеличиваетс в 2 раза (с 10-15 мин до 30 мин). При температуре испарени диэтилового эфира 50° С потери фурфурилового спирта значительно увеличиваютс и процент определ емого фурфурилового спирта составл ет менее 50% от вз того количества.At 15 ° C, the accuracy remains the same, but the evaporation (shaking) time of diethyl ether increases by 2 times (from 10–15 min to 30 min). When the evaporation temperature of diethyl ether is 50 ° C, the loss of furfuryl alcohol increases significantly and the percentage of detectable furfuryl alcohol is less than 50% of the quantity taken.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874313465A SU1631413A1 (en) | 1987-08-12 | 1987-08-12 | Method of analysis of furfuryl alcohol in air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874313465A SU1631413A1 (en) | 1987-08-12 | 1987-08-12 | Method of analysis of furfuryl alcohol in air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1631413A1 true SU1631413A1 (en) | 1991-02-28 |
Family
ID=21330599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU874313465A SU1631413A1 (en) | 1987-08-12 | 1987-08-12 | Method of analysis of furfuryl alcohol in air |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1631413A1 (en) |
-
1987
- 1987-08-12 SU SU874313465A patent/SU1631413A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Другое Ю.С. и др. Методы анализа загр знений воздуха. М.: Хими , 1984, с. 23-115. Тарасов В,В. и др. Гигиена труда. 1980, № 7, с. 52. * |
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