Simultaneous Determination of Chromium(III) and Chromium(VI) in Aqueous Solution by Capillary Electrophoresis with On-Column UV-VIS Detection.
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- JUNG G. Y.
- Department of Chemistry, Dankook University
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- KIM Yang Sun
- The College of General Education, Semyoung University
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- LIM H. B.
- Department of Chemistry, Dankook University
書誌事項
- タイトル別名
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- Simultaneous Determination of Chromium
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Chromium(III) and Chromium(VI) have been speciated by capillary electrophoresis(CE) with on-column UV-Vis detection at 254nm and a negative potential. Chromium(III) has been converted to an anionic complex using ethylenediaminetetraacetate (EDTA) to be detected simultaneously with Cr(VI) by CE. A cationic surfactant, cetyltrimethylammonium bromide (CTAB), was added to a buffer solution of 10mM phosphate in order to reverse the electroosmotic flow (EOF) in the capillary. This results in a short analysis time and better peak shapes. The effect of the buffer pH over the range of 6 to 11 on the separation of each species has been observed. Nitrate and chromate have been nicely separated at a higher pH. Linear calibrations for chromate and a chromic EDTA complex were established over the concentration range of 50-200pg/nl with detection limits of 1.5pg/nl and 5pg/nl, respectively, using a 10mM phosphate buffer and a 0.5mM CTAB solution.
収録刊行物
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- Analytical Sciences
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Analytical Sciences 13 (3), 463-467, 1997
社団法人 日本分析化学会
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詳細情報 詳細情報について
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- CRID
- 1390001204252481792
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- NII論文ID
- 130003416636
- 10002411830
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- NII書誌ID
- AA10500785
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- COI
- 1:CAS:528:DyaK2sXjvFWhtrY%3D
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- ISSN
- 13482246
- 09106340
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- NDL書誌ID
- 4231299
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可