腐蚀性气体硫化氢测定方法的探讨

Research on Determining Methods of Corrosive Gas-hydrogen Sulfide

腐蚀性气体硫化氢的测定方法最常见的是亚甲基蓝分光光度法和碘量法,这两种测定方法都受到众多因素的影响。对于亚甲基蓝分光光度法而言,采样,标准曲线的绘制,以及样品的分析等过程都会影响硫化氢测定结果的可靠性;同样,对于碘量法,采样,硫代硫酸钠标准溶液的配制,以及样品的分析等过程也都会对测定结果造成影响。

The most common determining methods of corrosive gas -hydrogen sulfide are the methylene blue spectrophotometry and the iodimetry, however, these two methods are both affected by many factors. For the methylene blue spectrophotometry, such procedures as sampling, obtaining the standard curve, and analysis of samptes, will affect the reliability of the results of determination of hydrogen sulfide. Similarly, as for the iodimetry, sampling, preparation of the sodium thiosulfate standard solution, and analysis of samples will all play important impacts on the determination results.