一种利用钌对高碘酸盐氧化吡啰红B的催化作用进行超痕量测定钌的简单且高灵敏度的分光光度法。
A simple and high sensitive spectrophotometric method for ultra trace determination of ruthenium with its catalytic effect on the oxidation of pyronin B by periodate.
作者信息
Rezaei Behzad, Majidi Najmeh
机构信息
Department of Chemistry, Isfahan University of Technology, Isfahan 84156, Iran.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2007 Apr;66(4-5):869-73. doi: 10.1016/j.saa.2006.05.002. Epub 2006 May 10.
A new simple, selective, high sensitive and rapid method has been developed for spectrophotometric determination of ultra trace amounts of ruthenium based on its catalytic effect on the oxidation of pyronin B by periodate at lambdamax=555 nm. The described method is able to quantify ruthenium in the range of 0.1-100 ng ml-1 (r=0.9973), with a detection limit (S/N=3) of 0.036 ng ml-1. Under optimum conditions, this procedure has been successfully applied to determine the trace levels of ruthenium in the environmental and biological samples. The precision, expressed as relative standard deviation of three measurements, is better than 2.44%.
基于钌对高碘酸盐氧化派洛宁B在λmax = 555 nm处的催化作用，开发了一种新的简单、选择性好、高灵敏度且快速的分光光度法，用于测定超痕量钌。所述方法能够在0.1 - 100 ng ml-1范围内定量钌（r = 0.9973），检测限（S/N = 3）为0.036 ng ml-1。在最佳条件下，该方法已成功应用于测定环境和生物样品中的痕量钌。以三次测量的相对标准偏差表示的精密度优于2.44%。
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