Trace analysis of sulfonylurea herbicides in water by on-line continuous flow liquid membrane extraction-C-18 precolumn liquid chromatography with ultraviolet absorbance detection
文献类型：期刊论文
| 作者 | Liu, JF; Chao, JB; Jiang, GB; Cai, YQ; Liu, JM |
| 刊名 | JOURNAL OF CHROMATOGRAPHY A
 |
| 出版日期 | 2003 |
| 卷号 | 995期号:1页码:21-28 |
| 关键词 | trace analysis water analysis continuous-flow liquid membrane extraction sulfonylureas pesticides |
| 英文摘要 | An on-line system that consists of continuous-flow liquid membrane extraction (CFLME), C-18 precolumn, and liquid chromatography with UV detection was applied to trace analysis of sulfonylurea herbicides in water. During preconcentration by CFLME, five target compounds, including metsulfuron methyl, bensulfuron methyl, tribenuron methyl, sulfometuron methyl, and ethametsulfuron, were enriched in 960 mul of 0.5 mol l(-1) Na2CO3-NaHCO3 (pH 10.8) buffer used as acceptor. This acceptor was on-line neutralized and transported to the C-18 precolumn where the analytes were absorbed and focused. Then the focused analytes were injected onto a C-18 analytical column for separation and detection at 240 nm. The proposed method was applied to determine sulfonylurea herbicides in water, river, and reservoir water with detection limits of 10-50 ng l(-1) when enriching a 120-ml sample. Throughput is typically one sample per hour. (C) 2003 Elsevier Science B.V. All rights reserved. |
| 研究领域[WOS] | Biochemistry & Molecular Biology ; Chemistry |
| WOS记录号 | WOS:000183025800003 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/23732]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Liu, JF,Chao, JB,Jiang, GB,et al. Trace analysis of sulfonylurea herbicides in water by on-line continuous flow liquid membrane extraction-C-18 precolumn liquid chromatography with ultraviolet absorbance detection[J]. JOURNAL OF CHROMATOGRAPHY A,2003,995(1):21-28. |
| APA | Liu, JF,Chao, JB,Jiang, GB,Cai, YQ,&Liu, JM.(2003).Trace analysis of sulfonylurea herbicides in water by on-line continuous flow liquid membrane extraction-C-18 precolumn liquid chromatography with ultraviolet absorbance detection.JOURNAL OF CHROMATOGRAPHY A,995(1),21-28. |
| MLA | Liu, JF,et al."Trace analysis of sulfonylurea herbicides in water by on-line continuous flow liquid membrane extraction-C-18 precolumn liquid chromatography with ultraviolet absorbance detection".JOURNAL OF CHROMATOGRAPHY A 995.1(2003):21-28. |
入库方式： OAI收割
来源：生态环境研究中心
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