【摘要】 本文考察了用比色法测定气体中硫化氢含量时,显色剂用量、浓度、显色时间诸因素对测定准确度的影响。弄清了气体中硫化氢浓度有较大幅度时测不准的主要原因。并摸索出了一些经验,提出了一个鉴别指标,以保证结果的可靠性。更多还原

【Abstract】 The influences of the amount of color reagent used, its concentration and time of color reaction on the accuracy of colorimetric analysis of hydrogen sulfide in gases were investigated. The reasons for being difficult to obtain accurate results when H₂S concentration varies by a range of ten to several ten thousand ppm. were discussed. Experience has been accumulated and a criterion proposed to ensure the reliability of the analytical results.更多还原