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MoO42-—I—As(Ⅲ)—Luminol化学发光反应测定砷
Determination of Arsenic with MoO42- -I-As ( Ⅲ )-Luminol Chemiluminescence Reaction
【摘要】 本文研究将As(Ⅲ)催化MoO42-氧化Ⅰ-产生Ⅰ2的反应,与Luminol—Ⅰ2化学发光反应相偶合,建立了测定砷的化学发光新方法.此法的检测限达到0.4ngAs/ml,线性浓度范围为1×10-9~1×10-5g/ml.通过巯基棉分离富集As(Ⅲ),成功地应用于天然水及岩矿样品中痕量砷的测定.
【Abstract】 A new chemiluminescence method for determination of arsenic with the inorganic coupled reaction of MoO42-I-As(Ⅲ)-luminol system is studied. The detection limit of As (Ⅲ) is 0.4ng/ml.The linear range of the calibration curves from 1×10-9 to 1×10-5g/ml. Interfering ions can be separated with sulfhydryl cotton fiber.This method is used to determine arsenic in nature water and ore with satisfactory resuts.
- 【文献出处】 冶金分析 ,Metallurgical Analysis , 编辑部邮箱 ,1991年02期
- 【被引频次】6
- 【下载频次】25