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1-苯基-3-甲基-4-甲酰基吡唑酮〔5〕(PMBP)在分析化学上已广泛应用。本文主要研究了以钛-硫氰酸盐-PMBP的橙黄色络合物萃取-分光光度测定微量钛的有关条件。用本法测定不锈钢、铝铜合金和铁矿中微量钛,结果满意。 (一)主要试剂 1.钛标准溶液:用含量大于99.9％海绵钛配制成10.0微克钛/毫升的1:1盐酸溶液。
Phenyl-3-methyl-4-formylpyrazolone [5] (PMBP) has been widely used in analytical chemistry. In this paper, the conditions for the determination of trace titanium with titanium-thiocyanate-PMBP orange complex were studied by spectrophotometry. The determination of trace amounts of titanium in stainless steel, aluminum-copper alloy and iron ore by this method was satisfactory. (A) the main reagent 1. Titanium standard solution: with more than 99.9% titanium sponge formulated into 10.0 micrograms of titanium / ml of 1: 1 hydrochloric acid solution.