摘要
以2%NaOH溶液替代醋酸锌溶液为硫化物吸收液;另由体积分数50%的盐酸替代磷酸作酸化剂,可避免吸收瓶壁附着物生成,提高硫化物的吸收率,样品加标回收率为92.5%-100%。
The recovery of sulfide from the samples NaOH solution. To avoid the deposition on the bottle wall substituted phosphoric acid as acidulant. was from 92.5 % to 100 % with absorbent of 2 % and improve the sulfide recovery, the hydrochloric acid
出处
《环境监测管理与技术》
北大核心
2007年第5期59-60,共2页
The Administration and Technique of Environmental Monitoring
关键词
硫化物
预处理
酸化剂
Sulfide
Pretreatment
Acidulant