摘要
目的探讨水中硫化物预处理的测定方法。方法采用锌-酸吹气、氢氧化钠吸收的吹气碘量法。结果硫化物平均回收率为98.4%,RSD为2.67%。解决了硫化物在预处理阶段的吸收损失,逸散损失,消除了干扰测定的影响。结论本方法对水中硫化物的预处理效果良好。
Objective To improve the pretreatment, method to determine sulfide in water. Methods Zinc - blowing acid, sodium hydroxide absorption of the inflatable iodometry was carried out. Results The rate of recovery was 98.4%, the relative standard deviation was 2.67%. The absorption loss and dispersion loss in the pretreatmeut stage were solved , and the interference was eliminated. Conclusion Recovery rate of sulfide is improved and effect of the pretreatment is good.
出处
《中国卫生工程学》
CAS
2007年第4期226-227,共2页
Chinese Journal of Public Health Engineering
关键词
吹气
硫化物
预处理
Inflatable
Sulfide
Pretreatment
