摘要
建立了溴化十四烷基吡啶（ＴＰＢ）的火焰原子吸收（ＦＡＡＳ）间接测定方法。ＴＰＢ与硫氰酸镉形成的离子对缔合物，被萃取入二甲苯内，ＦＡＡＳ测萃取二甲苯中镉的吸光度，间接测定ＴＰＢ。ＴＰＢ的线性范围为０．０３～０．８０ｍｇ／Ｌ，灵敏度为０．０２１２ｍｇ／Ｌ·１％。用于废水测定时，加标回收率为９８％～１０４％，相对标准偏差小于９．１６％。
indirect method for the determination of tetradecyl pyridyl bromide (TPB) was established(TPB) by flame atomic absorption spectrometry(FAAS). TPB was combined with cadmium tetrathocyanate to make neutral ion association compounds, which are extracted into xylene. The concentration of TPB can be indirectly determined by the absorption of cadmium in xylene layer with flame atomic absorption spectrometry. The linear range of TPB is 0 03～0 80 mg/L. The sensitivity is 0 0212 mg/L·1%. When the method was applied to the analysis of waste water, the recovery is from 98% to 104% and the RSD is less than 9 16%.
出处
《卫生研究》
CAS
CSCD
北大核心
1998年第4期246-247,共2页
Journal of Hygiene Research
基金
四川省科委资助
关键词
废水
TPB
溴化十四烷基
吡啶
火焰原子吸收法
flame atomic absorption spectrometry, tetradecyl pyridyl bromide, waste water
