新显色剂5-(6-硝基苯并噻唑偶氮)-8-氨基喹啉与镍显色反应的研究及应用  

Study on Colour Reaction of Nickel with a New Reagent 5\|(6\|Nitro\| 2 \|Benzothiazoleazo)\| 8 \|Aminoquinoline and Application

作　　者：陈菊[1] 赵书林[2] 陈美基[2] 

机构地区：[1]柳州职业技术学院 [2]广西师范大学化学化工系

出　　处：《光谱实验室》1999年第3期306-308,共3页Chinese Journal of Spectroscopy Laboratory

摘　　要：研究了新显色剂５－（６－硝基苯并噻唑偶氮）－８－氨基喹啉与镍的显色反应。在阳离子表面活性剂十六烷基三甲基溴化铵存在下的弱碱性介质中，试剂与镍形成３∶１的蓝色配合物，其最大吸收波长位于６１５ｎｍ处，表观摩尔吸光系数为１．１３×１０５Ｌ·ｍｏｌ－１·ｃｍ－１，镍含量在０－６μｇ／２５ｍＬ范围内符合比耳定律。方法应用于铝合金中镍的测定。A highly sensitive spectrophotometric method for determination of nickel by new chromogenic reagent 5\|(6\|nitro\|2\|benzothiazoleazo)\|8\|aminoquinoline(NBTAQ)has been developed.In the presence of CTMAB and borax buffer solution,nickle forms a blue 13(nickelNBTAQ)complex with NBTAQ which has an wavelength of maximum absorption at 615nm.The molar absorptivity is 1.13105 Lmol-1cm-1.Beer's law is obeyed for nickel in the concentration range 0-6g/25mL of solution.Trace amounts of nickel in aluminum alloy has been satisfactorily determined by the method.

关 键 词：NBTAQ 显色剂 镍 分光光度法 测定 

分 类 号：O614.813[理学—无机化学]