Weight loss method, extraction and absorption photometry were adopted, the measurement results of these means were compared.
采用减量法、萃取法以及吸收光度法进行了组分测定，对比各方法的测定结果。
Method: Sulfur dioxide released from wine by distillation was absorbed with formaldehyde absorption solution, and then determination was conducted by reduction photometry.
方法：用甲醛吸收液吸收经蒸馏释放出的二氧化硫，再用还原光度法测定。
Results the results of catalytic photometry approximated to those of the atomic absorption method.
结果本法与原子吸收法所测定结果基本一致。
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