摘要
提出采用流动注射-氢化物发生-冷原子吸收光谱法测定废水中汞（Ⅱ），在优化的试验条件和合适的样品酸度及硼氢化钾浓度存在下，汞的检出限（3S／N）为0．006μg·L^-1，并用标准加入法作回收试验，得出回收率在94．0%～101．0％之间，相对标准偏差（n=6）在3．86％～4．61％之间。
The FI-hydride generator was used in combination with the atomic absorption spectrometer for cold vapor AAS determination of Hg（ Ⅱ ） in waste water. Under the optimum conditions of acidity of sample solution, concentration of KBH4 added and operation parameters of the instrument, value of detection limit （3S/N） of this method attained to 0. 006 9g·L^-1. Recovery of the method was tested by the standard addition method, and the results obtained were in the range of 94. 0% to 101.0% with values of RSD＇s （n=6） ranged from 3. 9% to 4. 7%.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2009年第7期810-811,814,共3页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
