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合成了一种新的不对称双偶氮变色酸类试剂 2 苯并噻唑偶氮 7 ( 4 硝基苯偶氮 ) 1 ,8 二羟基萘 3,6-二磺酸。研究了试剂的结构和试剂的光度性质 ,并用偏最小二乘法 (PLS)不经分离同时分光光度测定了合成试样和铝合金试样中的微量Fe 和Ti 。
A new asymmetric bisazo chromotropic acid reagent, benzothiazolylazo 7 (4nitrophenylazo) 1,8 dihydroxynaphthalene 3,6-disulfonic acid was synthesized. The structure of the reagents and the photometric properties of the reagents were studied. The trace Fe and Ti in the samples and the aluminum alloy samples were determined by partial least squares (PLS) without separation and spectrophotometry.