简便快速的硫化氢测定法

A Simple and Rapid Method for the Determination of Hydrogen Sulfide

本文提出了用一种简易快速测定剂来测定水样中的硫化氢的方法。该法的检出限为0.1mg/L,对1.01mg/L的H_2S样品7次测定的相对标准偏差<4.1%,1h能测定12个样品。用本法测定了几种水样中的H_2S含量,回收率为84％～105％。应用它可使测定时间由标准法的4h左右缩短到5min;使分析成本降低9/10;不需配制一系列分析试剂和仪器,只需一支小型塑料管和几片药片,便于渔业水质和环境水质的野外现场监测。

A new simple rapid method for determining hydrogen sulfide is proposed. The de-tection limit is 0.1mg/L for H2S, the relative Standard deviation (n=7) for a 1.01 mg/L H2S is less than 4. 1 % , and 12 sample/h can be analyzed. The method has been used to de-termine H2S in water with the recovery of 84%~105 %.