Separation of arsenic species by capillary electrophoresis with sample-stacking techniques
文献类型：期刊论文
| 作者 | Chen, ZL; Lin, JM; Naidu, R |
| 刊名 | ANALYTICAL AND BIOANALYTICAL CHEMISTRY
 |
| 出版日期 | 2003 |
| 卷号 | 375期号:5页码:679-684 |
| 关键词 | as species CZE sample stacking natural water |
| 英文摘要 | A simple capillary zone electrophoresis procedure was developed for the separation of arsenic species (ASO(2)(2-), ASO(4)(2-), and dimethylarsinic acid, DMA). Both counter-electroosmotic and co-electroosmotic (EOF) modes were investigated for the separation of arsenic species with direct UV detection at 185 nm using 20 mmol L-1 sodium phosphate as the electrolyte. The separation selectivity mainly depends on the separation modes and electrolyte pH. Inorganic anions (Cl-, NO2-, NO3- and SO42-) presented in real samples did not interfere with arsenic speciation in either separation mode. To improve the detection limits, sample-stacking techniques, including large-volume sample stacking (LVSS) and field-amplified sample injection (FASI), were investigated for the preconcentration of As species in co-CZE mode. Less than 1 mumol L-1 of detection limits for As species were achieved using FASI. The proposed method was demonstrated for the separation and detection of As species in water. |
| 研究领域[WOS] | Biochemistry & Molecular Biology ; Chemistry |
| WOS记录号 | WOS:000182252200013 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/23715]  |
| 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 | Chen, ZL,Lin, JM,Naidu, R. Separation of arsenic species by capillary electrophoresis with sample-stacking techniques[J]. ANALYTICAL AND BIOANALYTICAL CHEMISTRY,2003,375(5):679-684. |
| APA | Chen, ZL,Lin, JM,&Naidu, R.(2003).Separation of arsenic species by capillary electrophoresis with sample-stacking techniques.ANALYTICAL AND BIOANALYTICAL CHEMISTRY,375(5),679-684. |
| MLA | Chen, ZL,et al."Separation of arsenic species by capillary electrophoresis with sample-stacking techniques".ANALYTICAL AND BIOANALYTICAL CHEMISTRY 375.5(2003):679-684. |
入库方式： OAI收割
来源：生态环境研究中心
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