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本文详细地研究了新显色剂４－（２－苯并噻唑偶氮）焦酚与Ｔｉ（Ⅳ）和ＣＴＭＡＢ的灵敏显色反应和所形成的配合物，该配合物的λ＿ｍａｘ＝５８０ｎｍ，表观摩尔吸光系数为７．０１×１０￣４。钛在０～１８μｇ／２５ｍｌ范围内服从比尔定律，所拟定的方法已满意地用于钢铁中微量钛的分光光度测定
In this paper, the sensitive chromogenic reaction of the new color reagent 4- (2-benzothiazolylazo) pyrogallol with Ti (Ⅳ) and CTMAB was studied in detail. The complex has a λ max = 580 nm, View molar extinction coefficient of 7.01 × 10 ~ 4. Beer’s law is obeyed in the range of 0 ~ 18μg / 25ml for titanium, and the proposed method has been used satisfactorily for the determination of trace titanium in steel