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分光光度法测定猪肾中的硒
Spectrophotometric Determination of Selenium in Pork Kidney
【摘要】 在盐酸介质中3—3’二氨基联苯胺与硒反应生成黄色络合物,λmax=420nm,ε=4×104L·mol-1·cm-1,硒含量在0.5~50μg/25ml内符合比尔定律,本方法用于猪肾样品中硒的测定结果令人满意。
【Abstract】 In the presence of HCL solution, 3—3’diaminobenzidine can react with selenium to form yellow complex. The malor absorptivity is 4×104L·mol-1·cm-1 at 420 nm. Beer’s law is obeyed in the range of 0. 5—50μg/25ml. This metho can be applied to the determination of selenium in mushroom with satisfactory result.
【关键词】 硒;
3—3’二氨基联苯胺;
甲苯;
萃取;
分光光度法;
【Key words】 Selenium; 3-3’diaminobenzidine; Toluene; Extractic; Spectrophotometry;
【Key words】 Selenium; 3-3’diaminobenzidine; Toluene; Extractic; Spectrophotometry;
- 【文献出处】 福建分析测试 ,Fujian Analysis & Testing , 编辑部邮箱 ,2000年02期
- 【分类号】O657.3
- 【下载频次】33