| β—Correction Spectrophotometric Determination of Cadmium with Cadion |
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| 引用本文： | 郜洪文. β—Correction Spectrophotometric Determination of Cadmium with Cadion[J]. 中国地球化学学报, 1995, 14(1): 93-96. DOI: 10.1007/BF02840388 |
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| 作者姓名： | 郜洪文 |
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| 作者单位： | HuaibeiEnvironmentalMonitoringCentr,AnhuiProvince,Huaibei235000 |
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| 摘 要： | Cadmium has been determined by β-correction spectrophotometry with cadion,p-nitrobenzenediazoaminoaz-obenzone,and a non-ionic surfactant,tuiton X-100.The real absorbance of a Cd-cadion chelate in the colored solution can be accurately determined and the complex-ratio of cadion with Cd(II) has been worked out to be 2.Beer‘s law is obeyed over the concentration range of 0-0.20mg/1 cadmium and the detec-tion limit for cadmium is only 0.003mg/1.Satisfactory experimental results are presented with respect to the determination of trace cadmium in wastewaters.
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| 关 键 词： | 镉 试镉灵 分光光度法 重金属污染 废水 示踪作用 |
β-correction spectrophotometric determination of cadmium with cadion |
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| Gao Hongwen. β-correction spectrophotometric determination of cadmium with cadion[J]. Chinese Journal of Geochemistry, 1995, 14(1): 93-96. DOI: 10.1007/BF02840388 |
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| Authors: | Gao Hongwen |
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| Affiliation: | (1) Huaibei Environmental Monitoring Centre, Anhui Province, 235000 Huaibei |
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| Abstract: | Cadmium has been determined byβ-correction spectrophotometry with cadion, p-nitrobenzenediazoaminoaz-obenzone, and a non-ionic surfactant, triton X-100. The real absorbance of a Cd-cadion chelate in the colored solution can be accurately determined and the complex-ratio of cadion with Cd(II) has been worked out to be 2. Beer’s law is obeyed over the concentration range of 0–0.20mg/l cadmium and the detection limit for cadmium is only 0.003 mg/l. Satisfactory experimental results are presented with respect to the determination of trace cadmium in wastewaters. |
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| Keywords: | β -correction spectrophotometry complex-ratio cadmium cadion |
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