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题名: Determination of arsenic species by capillary zone electrophoresis with large-volume field-amplified stacking injection
作者: Zhang, PD;  Xu, GW;  Xiong, JH;  Zheng, YF;  Yang, Q;  Wei, FS
关键词: speciation ;  arsenic ;  capillary zone electrophoresis ;  field-amplified stacking injection ;  stacking ;  large volume
刊名: ELECTROPHORESIS
发表日期: 2001-10-01
卷: 22, 期:16, 页:3567-3572
收录类别: ISTP ;  SCI
文章类型: Article
部门归属: 18048
项目归属: 1808
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine ;  Physical Sciences
类目[WOS]: Biochemical Research Methods ;  Chemistry, Analytical
研究领域[WOS]: Biochemistry & Molecular Biology ;  Chemistry
英文摘要: Determination of arsenic species by large-volume field amplified stacking injection-capillary zone electrophoresis (LV-FASI-CZE) is reported in this paper. Whole column injection was employed. The optimum buffer pH for the separation of weak acids was discussed. It was found that the optimum buffer to analyze the stacked arsenate (As(V)), monomethylarsonate (MMA), and dimethylarsinate (DMA) was 25 mm phosphate at pH 6.5. However, the optimum buffer to analyze the concentrated arsenite (As(III)) was 20 mm phosphate - 10 mm borate at pH 9.28. The limits of detection of the method developed were 0.026 mg/L for As(III), 0.023 mg/L for As(V), 0.043 mg/L for MMA, and 0.018 mg/L for DMA. An enrichment factor of 34-100 for several arsenic species was obtained. In the end, this method was applied to determine the arsenic concentration in the environmental reference materials to show the usefulness of the method developed.
关键词[WOS]: ACUTE PROMYELOCYTIC LEUKEMIA ;  PLASMA-MASS SPECTROMETRY ;  SIMULTANEOUS SPECIATION ;  TRIOXIDE AS2O3 ;  SELENIUM ;  WATERS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000171506500035
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/83653
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Acad Sinica, Dalian Inst Chem Phys, Natl Chromatog R&A Ctr, Dalian 116011, Peoples R China
2.China Natl Environm Monitoring Ctr, Beijing, Peoples R China

Recommended Citation:
Zhang, PD,Xu, GW,Xiong, JH,et al. Determination of arsenic species by capillary zone electrophoresis with large-volume field-amplified stacking injection[J]. ELECTROPHORESIS,2001,22(16):3567-3572.
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