论文部分内容阅读
微量硒的测定,通常采用硒试剂比色法,该法流程长、手续繁琐,且硒试剂对人体有害。近年来,用氢化物-原子吸收法和催化极谱法测定微量硒,国内外均有报导。方法简便、快速、灵敏度高。1971年S.Nishi首先利用巯基棉富集分离测定水中汞以后,有人相继发表了巯集棉富集测定水中痕量有机汞、无机汞,锌、镉等元素的研究报告,均得到了满意结果,是较理想的分离手段。本文研究了利用巯基棉分离硒与汞的条件,
Determination of trace selenium, selenium reagent colorimetric method is usually used, the process flow length, procedures cumbersome, and selenium reagents harmful to humans. In recent years, the determination of trace selenium by hydride generation atomic absorption spectrometry and catalytic polarography has been reported both at home and abroad. Method is simple, fast, high sensitivity. In 1971, S.Nishi first used the enrichment and separation of sulfhydryl cotton to measure the mercury in water. Some people have published the research reports about the determination of trace organic mercury, inorganic mercury, zinc, cadmium and other elements in the water by mercaptan cotton enrichment, all of which have obtained satisfactory results , Is an ideal means of separation. In this paper, the conditions for the separation of selenium and mercury by mercapto-cotton were studied.