| 镉—碘化物—罗丹明B显色体系研究 |
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| 引用本文： | 梁玉珍,周波,马玲. 镉—碘化物—罗丹明B显色体系研究[J]. 高师理科学刊, 2000, 20(4): 36-38 |
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| 作者姓名： | 梁玉珍 周波 马玲 |
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| 作者单位： | 齐齐哈尔大学(梁玉珍,马玲),肇东市第一中学(周波) |
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| 摘 要： | 研究了在聚乙烯醇一明胶共存情况下 ,罗丹明B和CdI2-4 的高灵敏显色反应 ,并建立了新的光度法.该缔合物的最大吸收波长在585nm ,表观摩尔吸光系数ε为1.1×106 L mol-1cm-1.用本法测定了自来水和江水中镉的含量.回收试验的相对标准偏差为2.18 %和2.04 % ,回收率97.6 %～103.2 %.
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| 关 键 词： | 镉 罗丹明B 分光光度法 超高灵敏度 |
The Colour System Studied on Cadimium-Rhodamined B-Iodide |
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| Liang Yuzhen Zhou Bo Ma Ling. The Colour System Studied on Cadimium-Rhodamined B-Iodide[J]. Journal of Science of Teachers＇College and University, 2000, 20(4): 36-38 |
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| Authors: | Liang Yuzhen Zhou Bo Ma Ling |
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| Affiliation: | Liang Yuzhen Zhou Bo Ma Ling(Qiqihar University) (No.1 Middle School in Zhaodong City)(Qiqhar University) |
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| Abstract: | This paper desribed a new sensitive colour reaction of cadmine(Ⅱ).In which the maximun absorption ofiorassocvation comples is at 585 nm and apparent molar absorptivity is 1.1×106 Lmol-1 cm-1. Beers low is obeyed for cadmium of 0.1 to 0.6 μg/10 mL. Cadimium content is determined of ranning water and river water. The recovery rate is 97.6% to 103.2% respetively for six determination. |
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| Keywords: | Cadimium Rhodamined B Spectrophotometry Superhghly sensitivity |
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