催化极谱测定锆英石中微量钛

CATALYTIC POLAROGRAPHIC DETERMINATION OF TRACE TITANIUM IN ZIRCON

在含有１％ＥＤＴＡ、０．１％草酸和０．０３ｍｏｌ／ＬＮａＢｒＯ＿３的醋酸－醋酸钠底液中，钛与ＥＤＴＡ的络合物产生一个很灵敏的极谱催化波，从而建立了不经分离直接测定锆英石试样中微量钦的分析方法，大大缩短了测定时间，灵敏度和准确性令人满意。

In a supporti ng acetic acid-sodium acetate elect rolyte contai ni ng 1%EDTA,0.1%oxalic acid and 0.03 mol/L NaBrO_3(at pH=4.0)a sensitiVe cat-alytic complex wave of Tita nium-EDTA was obtai ned by singly-sweep oscillo-polarography, A new method for direct determination of trace amounts of titanium in zircon w ithout any separatio n has been established.The proposed method is simple a nd fast sensitive a nd accurate for determi nation of trace amou nts of ti-tanium.