新试剂4,4′-二[3-(4-苯基-2-噻唑基)三氮烯基]联苯与阳离子表面活性剂显色反应的研究  

Study on the Colour Reaction of Cationic Surfactant with a New Reagent 4,4′-bis[3-(4-phenylthiazol-2-yl)triazenyl]biphenyl

作　　者：王永秋[1] 何晓玲[1] 

机构地区：[1]淮北师范大学化学与材料科学学院,安徽淮北235000

出　　处：《分析科学学报》2010年第6期701-704,共4页Journal of Analytical Science

摘　　要：本文研究了新试剂4,4′-二[3-(4-苯基-2-噻唑基)三氮烯基]联苯(BPTTBP)与阳离子表面活性剂溴化十六烷基吡啶(CPB)和溴化十六烷基三甲基铵(CTMAB)的显色反应。结果表明,在NaOH碱性介质中,试剂BPTTBP分别与CPB和CTMAB形成紫色离子缔合物,最大吸收波长为607nm。试剂BPTTBP与CPB和CTMAB的缔合比均为1∶1,其表观摩尔吸光系数分别为2.46×104L·mol-1·cm-1和1.82×104L·mol-1·cm-1,CPB和CTMAB含量在0～1.0×10-5mol·L-1范围内符合比耳定律。方法直接用于废水中微量CPB和CTMAB的测定,结果满意。The colour reactions of N-cetylpyridiniu bromine（CPB）and cetyltrimethylammonium bromide （CTMAB）with 4,4′-bis[3-（4-phenylthiazol-2-yl）triazenyl]biphenyl（BPTTBP）have been studied.The results showed that,in the medium of NaOH solution,CPB or CTMAB reacted with BPTTBP to form purple ion pair complex with the mole ratio 1∶1respectively.The maximum absorption of two complexes was 607nm with molar absorption coefficients of 2.46×10^4 L·mol^-1·cm^-1 and 1.82×10^4 L·mol^-1· cm^-1 accordingly.Beer’s law was obeyed for CPB and CTMAB in the concentration range of 0～1.0× 10^-5 mol·L^-1.The method was applied in the determination of CPB and CTMAB in waste water sample.

关 键 词：4 4′-二[3-(4-苯基-2-噻唑基)三氮烯基]联苯 溴化十六烷基吡啶 溴化十六烷基三甲基铵 分光光度法 

分 类 号：O657.32[理学—分析化学]