Inoue S, Hoshi S, Matsubara M
Department of Environmental Engineering, Kitami Institute of Technology, Kitami-shi, 090 Japan.
Talanta. 1987 Oct;34(10):889-91. doi: 10.1016/0039-9140(87)80121-2.
N-m-Tolyl-n-phenylhydroxylamine is proposed for the spectrophotometric determination of titanium. The reagent forms a yellow chloroform-soluble complex with titanium in media with a hydrochloric acid concentration of at least 9M. The apparent molar absorptivity at 380 nm is 7.4 x 10(3) 1.mole(-1).cm(-1). The optimum final concentration range is 0-54 mug of titanium in 10 ml of chloroform. The complex contains the metal and reagent in 1:2 ratio. The proposed method has been successfully applied to the determination of titanium in coal, coal fly-ash, pond sediment and asphalt.
N-间甲苯基-N-苯基羟胺被提议用于钛的分光光度测定。该试剂在盐酸浓度至少为9M的介质中与钛形成一种黄色的可溶于氯仿的络合物。在380nm处的表观摩尔吸光系数为7.4×10³ L·mol⁻¹·cm⁻¹。最佳最终浓度范围是在10ml氯仿中含0 - 54μg钛。该络合物中金属与试剂的比例为1:2。所提出的方法已成功应用于煤、粉煤灰、池塘沉积物和沥青中钛的测定。
