CAJ | 학술논문

研究了新试剂5-(2-苯并噻唑偶氮)-8-氨基喹啉与镍的显色反应。在弱碱性介质中，阳离子表面活性剂溴化十六烷基三甲基铵存在下，试剂与镍形成3:1的蓝色配合物，其最大吸收波长位于610nm处，表观摩尔吸光系数为1.26×105L·mol·cm-1，镍的浓度在0～8.0μg/25ml范围内，符合比耳定律。应用于铝合金中微量镍的测定，获得了满意的结果。
연구료신시제5-(2-분병새서우담)-8-안기규람여얼적현색반응。재약감성개질중，양리자표면활성제추화십륙완기삼갑기안존재하，시제여얼형성3:1적람색배합물，기최대흡수파장위우610nm처，표관마이흡광계수위1.26×105L·mol·cm-1，얼적농도재0～8.0μg/25ml범위내，부합비이정률。응용우려합금중미량얼적측정，획득료만의적결과。
A highly sensitive photometric method for determination of nickel by the new chromogenic reagent 5-(2-benzothiazoleazo)-8-aminoquinoline (BTAQ) was proposed. In the presence of CTMAB and borax buffer solution, nickel forms a blue complex with BTAQ which has an absorption maxima at 610nm. The apparent molar absorptivity is 1.26×105L·mol-1·cm-1. Beer′s law is obeyed for nickel in the concentration range of 0～8.0μg per 25ml of solution. The method has been applied to the determination of nickel in aluminum alloy. The proposed method is simple, rapid and accurate.