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本文用0.01mol/L NaOH作吸收液,采集空气中H_2Se,用玻碳电极镀金膜、阳极溶出伏安法测定H_2Se,不需通氮除氧,在0～200μg/L范围内线性关系良好,r=0.9998,精密度好,相对标准偏差2.38％—2.67％,灵敏度高,检出限为0.01μg/ml,与经典的荧光分光光度法作对照试验,平均相对偏差小于10％,空气中存在的Pb、Zn、Cu、Cd、Mn离子无干扰,方法快速简便,适用于车间空气中H_2Se的测定。 生物材料中的硒多用经典的荧光分光光度
In this paper, H 2 Se was collected from the air with 0.01 mol / L NaOH as the absorbing solution, H 2 Se was determined by anodic stripping voltammetry using gold-plated glassy carbon electrode, without nitrogen and oxygen removal. The linear relationship was good in the range of 0 ~ 200 μg / r = 0.9998, good precision, relative standard deviation of 2.38% -2.67%, high sensitivity, the detection limit of 0.01μg / ml, compared with the classic fluorescence spectrophotometry control, the average relative deviation of less than 10%, the presence of air Of Pb, Zn, Cu, Cd, Mn ions without interference, the method is quick and easy, suitable for the determination of H_2Se in the air of workshop. Selenium in biological materials uses classical fluorescence spectrometry