A simple in situ visual and tristimulus colorimetric method for the determination of diphosgene in air
A simple visual and tristimulus colorimetric method (three-dimensional system CIE-L*a*b*) for the determination of trace amounts of diphosgene in air has been developed. The method is based on the suction of diphosgene vapors through a modified cotton fabric filter fixed in a special adapter. Prior...
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| Format: | Article |
| Language: | English |
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Serbian Chemical Society
2007-01-01
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| Series: | Journal of the Serbian Chemical Society |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0352-5139/2007/0352-51390710031P.pdf |
| _version_ | 1818887980058673152 |
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| author | Pitschmann Vladimír Kobliha Zbyněk Halámek Emil Tušarová Ivana |
| author_facet | Pitschmann Vladimír Kobliha Zbyněk Halámek Emil Tušarová Ivana |
| author_sort | Pitschmann Vladimír |
| collection | DOAJ |
| description | A simple visual and tristimulus colorimetric method (three-dimensional system CIE-L*a*b*) for the determination of trace amounts of diphosgene in air has been developed. The method is based on the suction of diphosgene vapors through a modified cotton fabric filter fixed in a special adapter. Prior to analysis, the filter is saturated with a chromogenic reagent based on 4-(p- nitrobenzyl)pyridine. The optimal composition of the reagent is 2 g of 4-(p-nitrobenzyl)pyridine and 4 g of N-phenylbenzylamine in 100 ml of a 50:50 ethanol-glycerol mixture. The intensity of the formed red coloration of the filter is evaluated visually or by a tristimulus colorimeter (LMG 173, Lange, Germany). The detection limit is 0.01 mg m-3. Acetyl chloride and benzoyl chloride react in 150 and 50 times higher concentrations, respectively. The method is suitable for mobile field analysis. . |
| first_indexed | 2024-12-19T16:45:50Z |
| format | Article |
| id | doaj.art-1154d2b7569544dabb4dd4b2641d0156 |
| institution | Directory Open Access Journal |
| issn | 0352-5139 1820-7421 |
| language | English |
| last_indexed | 2024-12-19T16:45:50Z |
| publishDate | 2007-01-01 |
| publisher | Serbian Chemical Society |
| record_format | Article |
| series | Journal of the Serbian Chemical Society |
| spelling | doaj.art-1154d2b7569544dabb4dd4b2641d01562022-12-21T20:13:39ZengSerbian Chemical SocietyJournal of the Serbian Chemical Society0352-51391820-74212007-01-0172101031103710.2298/JSC0710031P0352-51390710031PA simple in situ visual and tristimulus colorimetric method for the determination of diphosgene in airPitschmann Vladimír0Kobliha Zbyněk1Halámek Emil2Tušarová Ivana3Oritest spol. s r.o., Praha, Czech RepublicNBC Defense Institute, University of Defense, Brno, Czech RepublicNBC Defense Institute, University of Defense, Brno, Czech RepublicOritest spol. s r.o., Praha, Czech RepublicA simple visual and tristimulus colorimetric method (three-dimensional system CIE-L*a*b*) for the determination of trace amounts of diphosgene in air has been developed. The method is based on the suction of diphosgene vapors through a modified cotton fabric filter fixed in a special adapter. Prior to analysis, the filter is saturated with a chromogenic reagent based on 4-(p- nitrobenzyl)pyridine. The optimal composition of the reagent is 2 g of 4-(p-nitrobenzyl)pyridine and 4 g of N-phenylbenzylamine in 100 ml of a 50:50 ethanol-glycerol mixture. The intensity of the formed red coloration of the filter is evaluated visually or by a tristimulus colorimeter (LMG 173, Lange, Germany). The detection limit is 0.01 mg m-3. Acetyl chloride and benzoyl chloride react in 150 and 50 times higher concentrations, respectively. The method is suitable for mobile field analysis. .http://www.doiserbia.nb.rs/img/doi/0352-5139/2007/0352-51390710031P.pdftristimulus colorimetrydiphosgeneair analysis4-(p-nitrobenzyl)pyridinen-phenylbenzylamine |
| spellingShingle | Pitschmann Vladimír Kobliha Zbyněk Halámek Emil Tušarová Ivana A simple in situ visual and tristimulus colorimetric method for the determination of diphosgene in air Journal of the Serbian Chemical Society tristimulus colorimetry diphosgene air analysis 4-(p-nitrobenzyl)pyridine n-phenylbenzylamine |
| title | A simple in situ visual and tristimulus colorimetric method for the determination of diphosgene in air |
| title_full | A simple in situ visual and tristimulus colorimetric method for the determination of diphosgene in air |
| title_fullStr | A simple in situ visual and tristimulus colorimetric method for the determination of diphosgene in air |
| title_full_unstemmed | A simple in situ visual and tristimulus colorimetric method for the determination of diphosgene in air |
| title_short | A simple in situ visual and tristimulus colorimetric method for the determination of diphosgene in air |
| title_sort | simple in situ visual and tristimulus colorimetric method for the determination of diphosgene in air |
| topic | tristimulus colorimetry diphosgene air analysis 4-(p-nitrobenzyl)pyridine n-phenylbenzylamine |
| url | http://www.doiserbia.nb.rs/img/doi/0352-5139/2007/0352-51390710031P.pdf |
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