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Development of methods for identification and quasi-continuous monitoring of badly degradable organic traces in water and waste water. Final report; Entwicklung einer Methode zur Identifizierung und quasi-kontinuierlichen Ueberwachung biologisch schwer abbaubarer Wasserinhaltsstoffe. Abschlussbericht

Abstract

A new method (`conti-strip`-method) is described for continuous head space sampling of hardly volatile, polar or non-polar, high or low molecular organic trace constituents in waters. It is based on the multiplicative counter-current distribution of either the trace compounds themselves or derivatives thereof - the latter being formed in an on-line-step by oxidation, reduction, or photolytic reactions - between the aqueous sample which is made to flow through the helix-shaped reactor as a very thin film and a strip gas or an immiscible extraction liquid which also flows as a thin film. The output from the sampling device may be analyzed using any modern, serviceable, preferentially automatic trace-analytical method such as gas chromatography, GC-MS-coupling, ion exchange chromatography or HPLC. The results are not disturbed neither from rather high concentrations of non-volatile sample constituents, e.g. salts, high molecular substances or suspended solid material nor from other inorganic or organic traces in the sample. There is no formation of artifacts. The described procedures are very fast. They may easily be coupled with modern trace-analytical equipment. They are very well suited for the automatic on-line analysis of all kinds of waters and waste waters, and in many cases, are capable of providing data  More>>
Authors:
Publication Date:
Dec 31, 1991
Product Type:
Miscellaneous
Report Number:
ETDE-mf-93766085
Reference Number:
SCA: 540320; PA: DE-93:001136; SN: 93000938318
Resource Relation:
Other Information: PBD: 1991
Subject:
54 ENVIRONMENTAL SCIENCES; WATER POLLUTION MONITORS; RIVERS; WASTE WATER; GROUND WATER; ORGANIC COMPOUNDS; HAZARDOUS MATERIALS; ON-LINE MEASUREMENT SYSTEMS; WATER POLLUTION; GAS CHROMATOGRAPHY; MASS SPECTROSCOPY; LIQUID COLUMN CHROMATOGRAPHY; PROCESS CONTROL; CALIBRATION STANDARDS; 540320; CHEMICALS MONITORING AND TRANSPORT
OSTI ID:
10124708
Research Organizations:
Wuppertal Univ. (Gesamthochschule) (Germany). Fachbereich 9 - Naturwissenschaften 2 - Chemie - Biologie; Bundesministerium fuer Forschung und Technologie, Bonn (Germany)
Country of Origin:
Germany
Language:
German
Other Identifying Numbers:
Other: ON: DE93766085; CNN: Contract BMFT 02WT452; TRN: DE9301136
Availability:
OSTI; NTIS (US Sales Only)
Submitting Site:
DE
Size:
177 p.
Announcement Date:
Jul 04, 2005

Citation Formats

Hartkamp, H. Development of methods for identification and quasi-continuous monitoring of badly degradable organic traces in water and waste water. Final report; Entwicklung einer Methode zur Identifizierung und quasi-kontinuierlichen Ueberwachung biologisch schwer abbaubarer Wasserinhaltsstoffe. Abschlussbericht. Germany: N. p., 1991. Web.
Hartkamp, H. Development of methods for identification and quasi-continuous monitoring of badly degradable organic traces in water and waste water. Final report; Entwicklung einer Methode zur Identifizierung und quasi-kontinuierlichen Ueberwachung biologisch schwer abbaubarer Wasserinhaltsstoffe. Abschlussbericht. Germany.
Hartkamp, H. 1991. "Development of methods for identification and quasi-continuous monitoring of badly degradable organic traces in water and waste water. Final report; Entwicklung einer Methode zur Identifizierung und quasi-kontinuierlichen Ueberwachung biologisch schwer abbaubarer Wasserinhaltsstoffe. Abschlussbericht." Germany.
@misc{etde_10124708,
title = {Development of methods for identification and quasi-continuous monitoring of badly degradable organic traces in water and waste water. Final report; Entwicklung einer Methode zur Identifizierung und quasi-kontinuierlichen Ueberwachung biologisch schwer abbaubarer Wasserinhaltsstoffe. Abschlussbericht}
author = {Hartkamp, H}
abstractNote = {A new method (`conti-strip`-method) is described for continuous head space sampling of hardly volatile, polar or non-polar, high or low molecular organic trace constituents in waters. It is based on the multiplicative counter-current distribution of either the trace compounds themselves or derivatives thereof - the latter being formed in an on-line-step by oxidation, reduction, or photolytic reactions - between the aqueous sample which is made to flow through the helix-shaped reactor as a very thin film and a strip gas or an immiscible extraction liquid which also flows as a thin film. The output from the sampling device may be analyzed using any modern, serviceable, preferentially automatic trace-analytical method such as gas chromatography, GC-MS-coupling, ion exchange chromatography or HPLC. The results are not disturbed neither from rather high concentrations of non-volatile sample constituents, e.g. salts, high molecular substances or suspended solid material nor from other inorganic or organic traces in the sample. There is no formation of artifacts. The described procedures are very fast. They may easily be coupled with modern trace-analytical equipment. They are very well suited for the automatic on-line analysis of all kinds of waters and waste waters, and in many cases, are capable of providing data for process control and optimization. In addition, the new methods enable in a simple and very reliable manner the measurement of thermodynamic distribution constants and the production of calibration standards for organic trace analysis in waters and gases even for multi-component calibrations and at ultimate low concentration levels. The new head space sampling procedures are expected to replace in many instances the rather tedious conventional head space techniques and to open new analytical approaches, particularly in the fields of process control and environmental analysis. (orig.) With 97 refs., 104 tabs., 145 figs. [Deutsch] Grundlage der Entwicklung ist ein neuartiges, kontinuierlich arbeitendes Probenahmeverfahren fuer die gaschromatographische Dampfraumanalyse schwerfluechtiger oder hochpolarer, nieder- und hochmolekularer organischer Spurenstoffe in Waessern (`Conti-Strip`-Verfahren). Es beruht auf der multiplikativen Verteilung der organischen Spurenstoffe oder der daraus mittels oxidativer, reduktiver oder photolytischer Derivatisierung im on-line-Verfahren erzeugten charakteristischen Folgeprodukte zwischen der als duenner Film durch einen Wendelreaktor stroemenden Probe und einem Stripgas oder einem ebenfalls als Duennfilm stroemenden fluessigen Extraktionsmittel und der anschliessenden Analyse mit modernen, leistungsfaehigen Verfahren der Spurenanalyse, z.B. mittels Prozess-GC, GC-MS-Kopplung, Ionenchromatographie oder HPLC. Die Arbeitsergebnisse sind weitgehend unempfindlich gegenueber Stoerungen durch groessere Mengen nichtfluechtiger Probenbestandteile, z.B. Salze, hochmolekulare Stoffe, Feststoffteilchen, oder durch gleichzeitig anwesende andere anorganische oder organische Spurenstoffe. Probenverfaelschungen oder Artefaktbildungen sind praktisch ausgeschlossen. Die Arbeitsverfahren zeichnen sich durch hohe Arbeitsgeschwindigkeit aus. Sie koennen im automatischen Betrieb zur on-line-Ueberwachung von Waessern eingesetzt werden und ggf. auch Fuehrungsgroessen fuer technische Regelprozesse liefern. Darueber hinaus eignen sie sich zur Messung von thermodynamischen Verteilungskonstanten und zur Erzeugung von Eichstandards - auch als Mehrkomponentenstandards und mit extrem niedrigen Konzentrationen - fuer die Analyse organischer Spurenstoffe in Gasen und in Waessern. Die neuen instrumentell-analytischen Varianten der Dampfraum-Analysentechnik koennen in vielen Faellen die konventionellen Techniken ersetzen und darueber hinaus neue Anwendungen, vor allen in der Prozess- und Umweltanalyse, erschliessen. (orig./BBR) With 97 refs., 104 tabs., 145 figs.}
place = {Germany}
year = {1991}
month = {Dec}
}