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姚修仁等发现,在氯化铵、铜铁试剂、二苯胍底液中,钪在单扫示波极谱上有灵敏的络合物吸附波。但钍、锆、铀及稀土等干扰严重。李南强等研究了钆-茜素S的络合物吸附波,由于介质为弱碱性,故所有稀土元素都能产生络合物吸附波。我们发现,在茜素S、邻苯二甲酸氢钾和氨基乙酸底液(pH3.6—4.1)中,钪在单扫示波极谱上有良好的络合物吸附波。用钛铁试剂可消除少量铁、稀土等的干扰,检测限达1×10~(-7)M,钪的浓度在2×10~(-7)—
Yao Xiu-ren and other found that in the ammonium chloride, copper and iron reagents, diphenylguanidine base solution, scandium in a single sweep oscillopolarographic adsorption complex sensitive wave. However, thorium, zirconium, uranium and rare earth and other serious interference. Li Nanqiang and other studies gadolinium - alizarin S complex adsorption wave, because the medium is weakly alkaline, so all rare earth elements can produce complex adsorption wave. We found that scandium has a good complex adsorption wave in single sweep oscillopolarography in Alizarin S, potassium hydrogen phthalate and glycinate bottom (pH 3.6-4.1). The use of ferrotitanium reagent can eliminate a small amount of iron, rare earth interference, the detection limit of 1 × 10 ~ (-7) M, scandium concentration of 2 × 10 ~ (-7) -