| 镉(Ⅱ)—5—Br—PADAP—OP体系析相光度法测定痕量镉的研究 |
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| 引用本文： | 武国华,贺光楣.镉(Ⅱ)—5—Br—PADAP—OP体系析相光度法测定痕量镉的研究[J].安徽大学学报(自然科学版),1991(4). |
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| 作者姓名： | 武国华 贺光楣 |
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| 作者单位： | 安徽大学化学系，安徽大学化学系 |
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| 摘 要： | 本文研究了用 Cd(Ⅱ)—5—Br—PADAP—OP 体系折相光度法测定痕量镉的条件。实验麦明这一析相显色体系在 pH8.5—10.0时呈粉红色,其最大吸收波长为560nm,ε560=1.0×10~5,镉含量在2.0—4.5μg/5.0mL 范围内服从比耳定律。
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| 关 键 词： | 5-Br-PADAP 析相光度法 镉的测定 |
Phase Separation—Spectrophotometric Determination of Trace Cadmium with 5—Br—PADAP and OP |
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| Wu Guohua He Guangmei.Phase Separation—Spectrophotometric Determination of Trace Cadmium with 5—Br—PADAP and OP[J].Journal of Anhui University(Natural Sciences),1991(4). |
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| Authors: | Wu Guohua He Guangmei |
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| Institution: | Department of Chemistry |
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| Abstract: | The Phase Separation—spectrophotometric determination of trace cd(Ⅰ) with 5—Br—PADAP and non—ionic surfactant OP was studied.The experiment showed that the colour of the system cd(Ⅰ)—5—Br—PADAP —OP is pink in a buffer solution of pH 8.5-10.0 and exhibits an absor- ption peak at 560nm,Its molar absorptivity is found to be 1.0×10~5 1. mol~(-1).cm~(-1) Beer's law is obeyed in the range of 2.0～4.5μg cd/5.0ml. |
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| Keywords: | 5—Br—PADAP cadmium phase separation—spectrophotometry |
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