Dioxide sulphur determination by spectrophotometry using pararosanilin 用副品红分光光度法测定二氧化硫
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Methods for measurement of air pollution . determination of the mass concentration of sulphur dioxide in ambient air : tetrachloromercurate pararosaniline method 空气污染度的测量方法.第10部分:在环境空气中二氧化硫质量浓度的测定:四氯汞化物副品红法