上海第二工业大学学报
上海第二工業大學學報
상해제이공업대학학보
JOURNAL OF SHANGHAI SECOND POLYTECHNIC UNIVERSITY
2009年
2期
105-109
,共5页
钛%钽试剂%吸附伏安法%玻璃碳电极
鈦%鐽試劑%吸附伏安法%玻璃碳電極
태%단시제%흡부복안법%파리탄전겁
Titanium%BPHA%adsorption voltammetry%glassy carbon electrode
利用钛(Ⅳ)与钽试剂(BPHA)形成络合物,于玻璃碳电极(GCE)吸附伏安法测定钛.研究了测定条件和共存离子对测定的干扰,钛浓度在0.06 至 2 ng.ml-1(-0.3V下富集2 min)范围内与电流呈良好的线性关系,检出限可达0.0076 ng.ml-1;方法选择性好,灵敏度高,操作简单;应用于高纯铝中痕量钛的测定,结果令人满意.
利用鈦(Ⅳ)與鐽試劑(BPHA)形成絡閤物,于玻璃碳電極(GCE)吸附伏安法測定鈦.研究瞭測定條件和共存離子對測定的榦擾,鈦濃度在0.06 至 2 ng.ml-1(-0.3V下富集2 min)範圍內與電流呈良好的線性關繫,檢齣限可達0.0076 ng.ml-1;方法選擇性好,靈敏度高,操作簡單;應用于高純鋁中痕量鈦的測定,結果令人滿意.
이용태(Ⅳ)여단시제(BPHA)형성락합물,우파리탄전겁(GCE)흡부복안법측정태.연구료측정조건화공존리자대측정적간우,태농도재0.06 지 2 ng.ml-1(-0.3V하부집2 min)범위내여전류정량호적선성관계,검출한가체0.0076 ng.ml-1;방법선택성호,령민도고,조작간단;응용우고순려중흔량태적측정,결과령인만의.
Titanium (Ⅳ) reacts with N-benzoyl-N-phenylhydroxylamine (BPHA) to form a complex, which can be used to determine Titanium by adsorption voltammetry at a glassy carbon electrode(GCE). The experimental conditions and the influence of foreign ions on the determination were investigated. The current-concentration curve was linear in the range of 0.06 to 2 ng.ml-1 Ti at a deposition time of 2 min at -0.3V. The detection limit was 0.0076 ng.ml-1. The method has been proved to be of high sensitivity and to be easy to operate. The procedure has been applied to the determination of trace Titanium (Ⅳ) in high purity aluminum and the samples results were satisfactory.
