| Title: | A gas chromatography-flame ionization detection method for direct and rapid determination of small molecule volatile organic compounds in aqueous phase |
| Author(s): | Zhou J; Lu X; Tian B; Wang C; Shi H; Luo C; Li X; |
| Address: | "Faculty of Life Science and Food Engineering, HuaiYin Institute of Technology, Huaian, 223003 People's Republic of China. GRID: grid.417678.b. ISNI: 0000 0004 1800 1941 Jiangsu Provincial Engineering Laboratory for Biomass Conversion and Process Integration, Huaiyin Institute of Technology, Huaian, 223003 People's Republic of China. GRID: grid.417678.b. ISNI: 0000 0004 1800 1941 School of Biology and Basic Medical Sciences, Soochow University, 199 Renai Road, Suzhou, 215123 People's Republic of China. GRID: grid.263761.7. ISNI: 0000 0001 0198 0694" |
| DOI: | 10.1007/s13205-020-02523-8 |
| ISSN/ISBN: | 2190-572X (Print) 2190-5738 (Electronic) 2190-5738 (Linking) |
| Abstract: | "It is still difficult to directly detect low content of volatile organic compounds (VOCs) in water samples by gas chromatography (GC) because when water is the only solvent, it would result in the instability and poor repeatability of peak retention time and peak shape. The adverse effects of water on direct GC analysis of VOCs cannot be significantly reduced or eliminated by simply changing the detection condition of GC. However, it was found that the addition of methanol in samples to a certain final proportion, such as 50 or 75% (v/v), could greatly reduce or eliminate the adverse effects of water. By using 75% (v/v) methanol as a solvent, the standard curves of ethanol, acetic acid, acetone, and isopropanol with correlation coefficient (R (2)) over 0.99 were successfully plotted by gas chromatography-flame ionization detection (GC-FID) in a certain concentration range, respectively. The results showed that the retention time and peak shape stability of ethanol, acetic acid, acetone, and isopropanol in aqueous solution were greatly improved by the addition of methanol to final concertation of 75% (v/v). To verify the practical application potential of this method, the method was applied to the detection of components in isopropanol fermentation wastewater. The results showed that the method has well applicability and reliability. The key points in the application of this method were also summarized. This GC analysis method would have a wider and better application prospect in the detection of water-soluble organic matters" |
| Keywords: | Gas chromatography Isopropanol Methanol Volatile organic compounds; |
| Notes: | "PubMed-not-MEDLINEZhou, Jia Lu, Xiaoqing Tian, Baoxia Wang, Chonglong Shi, Hao Luo, Chuping Li, Xiangqian eng Germany 2020/11/17 3 Biotech. 2020 Dec; 10(12):520. doi: 10.1007/s13205-020-02523-8. Epub 2020 Nov 10" |
