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DE4232509A1 - Measuring contaminants in containers,e.g. plastic bottles - involves using mass spectrometer with ionisation and photon stimulation - Google Patents

Measuring contaminants in containers,e.g. plastic bottles - involves using mass spectrometer with ionisation and photon stimulation

Info

Publication number
DE4232509A1
DE4232509A1 DE4232509A DE4232509A DE4232509A1 DE 4232509 A1 DE4232509 A1 DE 4232509A1 DE 4232509 A DE4232509 A DE 4232509A DE 4232509 A DE4232509 A DE 4232509A DE 4232509 A1 DE4232509 A1 DE 4232509A1
Authority
DE
Germany
Prior art keywords
ionization
photon
containers
mass spectrometer
plastic bottles
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.)
Withdrawn
Application number
DE4232509A
Other languages
German (de)
Inventor
Essen Dr Heidrich
Ruediger Strauchmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Holstein und Kappert Maschinenfabrik Phonix GmbH
Original Assignee
Holstein und Kappert Maschinenfabrik Phonix GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Holstein und Kappert Maschinenfabrik Phonix GmbH filed Critical Holstein und Kappert Maschinenfabrik Phonix GmbH
Priority to DE4232509A priority Critical patent/DE4232509A1/en
Publication of DE4232509A1 publication Critical patent/DE4232509A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/02—Details
    • H01J49/10—Ion sources; Ion guns
    • H01J49/14—Ion sources; Ion guns using particle bombardment, e.g. ionisation chambers
    • H01J49/147—Ion sources; Ion guns using particle bombardment, e.g. ionisation chambers with electrons, e.g. electron impact ionisation, electron attachment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/46—Inspecting cleaned containers for cleanliness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0078—Testing material properties on manufactured objects
    • G01N33/0081—Containers; Packages; Bottles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/02—Details
    • H01J49/10—Ion sources; Ion guns
    • H01J49/16—Ion sources; Ion guns using surface ionisation, e.g. field-, thermionic- or photo-emission
    • H01J49/161—Ion sources; Ion guns using surface ionisation, e.g. field-, thermionic- or photo-emission using photoionisation, e.g. by laser
    • H01J49/162—Direct photo-ionisation, e.g. single photon or multi-photon ionisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Biochemistry (AREA)
  • Optics & Photonics (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Electron Tubes For Measurement (AREA)

Abstract

Foreign matter analysis is performed by using a mass spectrometer and involves photoionisation. Single and/or dual photon processes can be used for ionization. The ionization process can involve electron impacts and photon stimulation. VUV lamps with central plasma feeds can be used for ionization. Pulsed lamps or lasers can be used to increase the photon flow. The acceleration path for the impact electrons and the photon incidence path are mutually perpendicular. USE/ADVANTAGE - Esp. for reliable mass spectrometric detection of NH3 in containers, plastic bottles, etc.

Description

Die Erfindung bezieht sich auf ein Verfahren zur Bestimmung von Kontaminaten in Behältern.The invention relates to a method for determination of contaminants in containers.

Hierbei ist es bekannt, die zu untersuchenden Behälter beispielsweise in einer Rundläufermaschine aufzunehmen, einen Teilinhalt der Behälterluft anzusaugen und einem Massen­ spektrometer zur Analyse zuzuleiten. Je nach Analyseergebnis und entsprechender Kontamination wird der Behälter anschließend aussortiert. Als Massenspektrometer werden Geräte verwendet, deren Ionisation durch Elektronenstoß erfolgt. Bei dieser Verfahrensweise beschränkt sich der Nachweis der Fremdstoffe oder von Kontaminaten auf Verbindungen mit Massenzahlen, die nicht mit den Hauptbestandteilen der Luft, Wasser oder beispielsweise bei der Untersuchung von Mehrweg­ flaschen nicht mit den Aromastoffen von Getränken inter­ ferieren.Here it is known the container to be examined for example in a rotary machine, to record one Partial content of the container air and a mass to supply spectrometer for analysis. Depending on the analysis result and the container becomes contaminated then sorted out. Devices are used as mass spectrometers used, whose ionization takes place by electron impact. At this procedure limits the evidence of Foreign substances or contaminants on compounds with Mass numbers that are not related to the main components of air, Water or, for example, when examining reusable materials do not bottle with the flavors of beverages inter celebrate.

Die Bestimmung von z. B. Urin über den Indikator NH3 ist hierbei nicht möglich, da die Interferenz mit dem wesentlich häufiger vorkommenden Wassermolekül keinen Nachweis erlaubt.The determination of z. B. Urine is over the NH3 indicator not possible because the interference with the essential more frequently occurring water molecule no detection allowed.

Der Erfindung liegt die Aufgabe zugrunde, insbesondere NH3 massenspektrometisch sicher nachzuweisen. Diese Aufgabe wird bei einem Verfahren der eingangs genannten Art mit einem Massenspektrometer gelöst, dessen Ionisierung durch Photoionisation erfolgt. The invention has for its object, in particular NH3 reliable detection by mass spectrometry. This task will in a method of the type mentioned with a Mass spectrometer solved, its ionization by Photoionization takes place.  

Hierbei wird statt der totalen Ionisation über den Elektronen­ stoß eine Photoionisation eingesetzt, die eine Ionisierung der Luftkomponenten oder die des Wassers bzw. eine Reihe von anderen Fremdstoffen ausschließt und damit eine Vielzahl von möglichen Interferenzen vermeidet.Here, instead of total ionization over the electrons encountered a photo ionization that ionizes the Air components or those of water or a number of excludes other foreign substances and thus a variety of avoids possible interference.

Es hat sich dabei als zweckmäßig erwiesen, daß Ein- und/oder Zweiphotonenprozesse zu dieser Ionisation führen können.It has proven to be useful that one and / or Two-photon processes can lead to this ionization.

Ferner wird vorgeschlagen, daß die Ionisation durch Elektronen­ stoß und Photonenanregung erfolgt.It is also proposed that ionization by electrons collision and photon excitation.

Weitere Merkmale der Erfindung ergehen aus den Unteran­ sprüchen.Further features of the invention follow from the Unteran sayings.

In der Zeichnung ist ein Ausführungsbeispiel einer Anordnung zur Durchführung des Verfahrens dargestellt. Das Massen­ spektrometer 1 ist beispielsweise als Quadropolspektrometer ausgebildet und befindet sich in dem Vakuumraum 2, in dem auch das Leit- und Führungsrohr 3 für die Zuleitung der betreffenden Proben eingegliedert ist. In der verlängerten Achse des Führungsrohres 3 befindet sich das Fenster einer Lampe 4, die beispielsweise mit zentrierter Plasmaführung ausgelegt sein kann. Es können aber auch gepulste Lampen oder Laser eingesetzt werden. In the drawing, an embodiment of an arrangement for performing the method is shown. The mass spectrometer 1 is designed, for example, as a quadropole spectrometer and is located in the vacuum space 2 , in which the guide and guide tube 3 for the supply of the samples in question is incorporated. In the elongated axis of the guide tube 3 is the window of a lamp 4 , which can be designed, for example, with a centered plasma guide. However, pulsed lamps or lasers can also be used.

Wie aus der Zeichnung ersichtlich, ist die Beschleunigungs­ strecke für die Stoßelektronen und die Einstrahlrichtung der Photonen senkrecht zueinander ausgerichtet. Auf diese Weise ist ein intermetierender Betrieb photoneninduzierter und klassischer Massenspektrometrie möglich. Es können ohne weiteres Ein- oder Zweiphotonenprozesse zu der Ionisation eingesetzt werden. Ferner ist es denkbar, die Ionisation durch Elektronenstoß und Photonenanregung, also als photonen­ induzierte Ionisation durchzuführen.As can be seen from the drawing, the acceleration distance for the impact electrons and the direction of radiation of the Photons aligned perpendicular to each other. In this way is an intermittent operation classic mass spectrometry possible. It can be done without further one or two photon processes for ionization be used. It is also conceivable to carry out the ionization by Electron impact and photon excitation, i.e. as photons to carry out induced ionization.

Claims (6)

1. Verfahren zur Bestimmung von Kontaminaten in Behältern, Kunststoffflaschen und dgl., wobei die Fremdstoffanalyse durch Einsatz eines Massenspektrometers durchgeführt wird und dessen Ionisierung durch Photoionisation erfolgt.1. method for the determination of contaminants in containers, Plastic bottles and the like., The foreign substance analysis is carried out by using a mass spectrometer and its ionization takes place by photoionization. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß Ein- und/oder Zweiphotonenprozesse zur Ionisation eingesetzt sind.2. The method according to claim 1, characterized in that one and / or two-photon processes used for ionization are. 3. Verfahren nach den vorhergehenden Ansprüchen, dadurch gekennzeichnet, daß die Ionisation durch Elektronenstoß und Photonenanregung erfolgt.3. The method according to the preceding claims, characterized characterized in that the ionization by electron impact and Photon excitation takes place. 4. Verfahren nach den vorhergehenden Ansprüchen, dadurch gekennzeichnet, daß zur Ionisation VUV-Lampen mit zentrierter Plasmaführung in der Lampe angeordnet sind.4. The method according to the preceding claims, characterized characterized in that for ionization VUV lamps with centered plasma guide are arranged in the lamp. 5. Verfahren nach den vorhergehenden Ansprüchen, dadurch gekennzeichnet, daß zur Erhöhung des Photonenflusses gepulste Lampen oder Laser eingegliedert sind. 5. The method according to the preceding claims, characterized characterized in that to increase the flow of photons pulsed lamps or lasers are incorporated.   6. Verfahren nach den vorhergehenden Ansprüchen, dadurch gekennzeichnet, daß die Beschleunigungsstrecke für die Stoßelektronen und die Einstrahlrichtung der Photonen senkrecht zueinander angeordnet ist.6. The method according to the preceding claims, characterized characterized in that the acceleration distance for the Collision electrons and the direction of radiation of the photons is arranged perpendicular to each other.
DE4232509A 1992-09-29 1992-09-29 Measuring contaminants in containers,e.g. plastic bottles - involves using mass spectrometer with ionisation and photon stimulation Withdrawn DE4232509A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4232509A DE4232509A1 (en) 1992-09-29 1992-09-29 Measuring contaminants in containers,e.g. plastic bottles - involves using mass spectrometer with ionisation and photon stimulation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4232509A DE4232509A1 (en) 1992-09-29 1992-09-29 Measuring contaminants in containers,e.g. plastic bottles - involves using mass spectrometer with ionisation and photon stimulation

Publications (1)

Publication Number Publication Date
DE4232509A1 true DE4232509A1 (en) 1994-03-31

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004025841A1 (en) * 2004-05-24 2005-12-15 Bergische Universität Wuppertal Method and apparatus for mass spectroscopic analysis of analytes
EP1151466A4 (en) * 1999-02-09 2006-08-30 Syagen Technology Photoionization mass spectrometer
US7196325B2 (en) 2005-05-25 2007-03-27 Syagen Technology Glow discharge and photoionizaiton source

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878392A (en) * 1973-12-17 1975-04-15 Etec Corp Specimen analysis with ion and electrom beams
US4140905A (en) * 1977-05-02 1979-02-20 The Governing Council Of The University Of Toronto Laser-induced mass spectrometry
DE2732961A1 (en) * 1977-07-21 1979-02-22 Leybold Heraeus Gmbh & Co Kg Sample analysis by bombardment with electromagnetic radiation - with conductive layer in region of sample for uniform potential distribution
DE2844002A1 (en) * 1978-10-09 1980-05-14 Leybold Heraeus Gmbh & Co Kg METHOD AND DEVICE FOR ANALYZING FLUIDS
DE2942386A1 (en) * 1979-10-19 1981-04-30 Ulrich Dr. 8000 München Boesl ION SOURCE
DE3009069A1 (en) * 1980-03-10 1981-09-17 Bundesrepublik Deutschland, Vertreten Durch Den Bundesminister Der Verteidigung, 5300 Bonn INPUT HEAD OF A MEASURING / DETECTING SYSTEM FOR CHEMICAL AGENTS
DE3619886A1 (en) * 1985-06-13 1986-12-18 Mitsubishi Denki K.K., Tokio/Tokyo DEVICE FOR MASS SPECTROMETRIC ANALYSIS
US4734579A (en) * 1983-10-27 1988-03-29 Atom Sciences, Inc. Ultrasensitive method for measuring isotope abundance ratios
WO1992010745A1 (en) * 1990-12-06 1992-06-25 Lehmann, Martin Process for finding a measurement and measuring installation

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878392A (en) * 1973-12-17 1975-04-15 Etec Corp Specimen analysis with ion and electrom beams
US4140905A (en) * 1977-05-02 1979-02-20 The Governing Council Of The University Of Toronto Laser-induced mass spectrometry
DE2732961A1 (en) * 1977-07-21 1979-02-22 Leybold Heraeus Gmbh & Co Kg Sample analysis by bombardment with electromagnetic radiation - with conductive layer in region of sample for uniform potential distribution
DE2844002A1 (en) * 1978-10-09 1980-05-14 Leybold Heraeus Gmbh & Co Kg METHOD AND DEVICE FOR ANALYZING FLUIDS
DE2942386A1 (en) * 1979-10-19 1981-04-30 Ulrich Dr. 8000 München Boesl ION SOURCE
US4433241A (en) * 1979-10-19 1984-02-21 Ulrich Boesl Process and apparatus for determining molecule spectra
DE3009069A1 (en) * 1980-03-10 1981-09-17 Bundesrepublik Deutschland, Vertreten Durch Den Bundesminister Der Verteidigung, 5300 Bonn INPUT HEAD OF A MEASURING / DETECTING SYSTEM FOR CHEMICAL AGENTS
US4734579A (en) * 1983-10-27 1988-03-29 Atom Sciences, Inc. Ultrasensitive method for measuring isotope abundance ratios
DE3619886A1 (en) * 1985-06-13 1986-12-18 Mitsubishi Denki K.K., Tokio/Tokyo DEVICE FOR MASS SPECTROMETRIC ANALYSIS
WO1992010745A1 (en) * 1990-12-06 1992-06-25 Lehmann, Martin Process for finding a measurement and measuring installation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1151466A4 (en) * 1999-02-09 2006-08-30 Syagen Technology Photoionization mass spectrometer
DE102004025841A1 (en) * 2004-05-24 2005-12-15 Bergische Universität Wuppertal Method and apparatus for mass spectroscopic analysis of analytes
DE102004025841B4 (en) * 2004-05-24 2015-07-09 Bruker Daltonik Gmbh Method and apparatus for mass spectroscopic analysis of analytes
US7196325B2 (en) 2005-05-25 2007-03-27 Syagen Technology Glow discharge and photoionizaiton source

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Legal Events

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OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8139 Disposal/non-payment of the annual fee