摘要
研究了新显色剂8-氨基喹啉-5-偶氮-对苯甲酸(AQBA)的制备并对流动注射光度测金方法进行改进。利用分别固定在自制的流动比色装置检测器中的样品光束和参比光束,实现FIA微分光度法测定(ΔA),利用一次注样可产生正负两个拐点微分吸收的响应值与浓度之间关系进行定量测试,获得令人满意的分析结果。
The preparation of a new reageni AQBA and an improved method for determination of gold by flow injection spectrophotometry were studied. The self-made flow colofimetric equipment, which fixed the determination beam and the reference beam in the detector respectively, could realize the measurement of △A by flow injection derivative spectrophotometry. Quantitative analysis could be implemented＇by using the quantitative relationship between the concentration and derivate value of the inflection points obtained in the derivative absorption curve by one injection. The experimental results were satisfactory.
出处
《化学试剂》
CAS
CSCD
北大核心
2008年第11期867-868,874,共3页
Chemical Reagents
