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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％。
A indirect flame atomic absorption spectrometry (FAAS) method for the determination of tetraalkyl pyridinium bromide (TPB) was established. TPB and cadmium thiocyanate ion-association complex was extracted into xylene, FAAS measured the x-ray absorption of cadmium, indirect determination of TPB. The linear range of TPB is 0.03 ~ 0.80mg / L, the sensitivity is 0.0212mg / L · 1%. For the determination of wastewater, the spiked recoveries ranged from 98% to 104% and the relative standard deviations were less than 9.16%.