Sensitivity Increase in Headspace Analysis of Hydrocarbons in Water by Using Online Selective Elimination of Gas Extractant
In this study, a novel approach in headspace gas chromatographic analysis using the selective absorption of the gas extractant during concentration of the analytes was developed. The carbon dioxide used as the gas extractant was removed from the sample flow by passing it through a column packed with...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Separations |
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| Online Access: | https://www.mdpi.com/2297-8739/9/1/15 |
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| author | Oleg V. Rodinkov Alexey Y. Pisarev Leonid N. Moskvin Aleksandra S. Bugaichenko Pavel N. Nesterenko |
| author_facet | Oleg V. Rodinkov Alexey Y. Pisarev Leonid N. Moskvin Aleksandra S. Bugaichenko Pavel N. Nesterenko |
| author_sort | Oleg V. Rodinkov |
| collection | DOAJ |
| description | In this study, a novel approach in headspace gas chromatographic analysis using the selective absorption of the gas extractant during concentration of the analytes was developed. The carbon dioxide used as the gas extractant was removed from the sample flow by passing it through a column packed with microdispersed sodium hydroxide granules. The analytical capabilities of the suggested method were illustrated by the determination of aliphatic and aromatic hydrocarbons in water. We established that this method allows the preconcentration of analytes in the gas phase to be increased proportionally to the volume ratios of the gas extractant before and after absorption, while the analyte limits of detection decrease 30-fold. For example, benzene can be detected in water at a concentration of 0.5 μg/L. |
| first_indexed | 2024-03-10T00:32:20Z |
| format | Article |
| id | doaj.art-3fb305ab619a4db989af08da443cb434 |
| institution | Directory Open Access Journal |
| issn | 2297-8739 |
| language | English |
| last_indexed | 2024-03-10T00:32:20Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Separations |
| spelling | doaj.art-3fb305ab619a4db989af08da443cb4342023-11-23T15:23:17ZengMDPI AGSeparations2297-87392022-01-01911510.3390/separations9010015Sensitivity Increase in Headspace Analysis of Hydrocarbons in Water by Using Online Selective Elimination of Gas ExtractantOleg V. Rodinkov0Alexey Y. Pisarev1Leonid N. Moskvin2Aleksandra S. Bugaichenko3Pavel N. Nesterenko4Institute of Chemistry, Saint-Petersburg State University, 198504 Saint Peterburg, RussiaInstitute of Chemistry, Saint-Petersburg State University, 198504 Saint Peterburg, RussiaInstitute of Chemistry, Saint-Petersburg State University, 198504 Saint Peterburg, RussiaInstitute of Chemistry, Saint-Petersburg State University, 198504 Saint Peterburg, RussiaChemistry Department, M.V. Lomonosov Moscow State University, 119991 Moscow, RussiaIn this study, a novel approach in headspace gas chromatographic analysis using the selective absorption of the gas extractant during concentration of the analytes was developed. The carbon dioxide used as the gas extractant was removed from the sample flow by passing it through a column packed with microdispersed sodium hydroxide granules. The analytical capabilities of the suggested method were illustrated by the determination of aliphatic and aromatic hydrocarbons in water. We established that this method allows the preconcentration of analytes in the gas phase to be increased proportionally to the volume ratios of the gas extractant before and after absorption, while the analyte limits of detection decrease 30-fold. For example, benzene can be detected in water at a concentration of 0.5 μg/L.https://www.mdpi.com/2297-8739/9/1/15gas chromatographyaliphatic and aromatic hydrocarbonsheadspace analysisgas- phase extractioncarbon dioxidegas-extractant absorption |
| spellingShingle | Oleg V. Rodinkov Alexey Y. Pisarev Leonid N. Moskvin Aleksandra S. Bugaichenko Pavel N. Nesterenko Sensitivity Increase in Headspace Analysis of Hydrocarbons in Water by Using Online Selective Elimination of Gas Extractant Separations gas chromatography aliphatic and aromatic hydrocarbons headspace analysis gas- phase extraction carbon dioxide gas-extractant absorption |
| title | Sensitivity Increase in Headspace Analysis of Hydrocarbons in Water by Using Online Selective Elimination of Gas Extractant |
| title_full | Sensitivity Increase in Headspace Analysis of Hydrocarbons in Water by Using Online Selective Elimination of Gas Extractant |
| title_fullStr | Sensitivity Increase in Headspace Analysis of Hydrocarbons in Water by Using Online Selective Elimination of Gas Extractant |
| title_full_unstemmed | Sensitivity Increase in Headspace Analysis of Hydrocarbons in Water by Using Online Selective Elimination of Gas Extractant |
| title_short | Sensitivity Increase in Headspace Analysis of Hydrocarbons in Water by Using Online Selective Elimination of Gas Extractant |
| title_sort | sensitivity increase in headspace analysis of hydrocarbons in water by using online selective elimination of gas extractant |
| topic | gas chromatography aliphatic and aromatic hydrocarbons headspace analysis gas- phase extraction carbon dioxide gas-extractant absorption |
| url | https://www.mdpi.com/2297-8739/9/1/15 |
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