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钴的极谱催化波国内外有不少报导,其中较多的是钴在胱氨酸中的催化波,但在矿物原料分析中尚未得到应用。近年来国外提出的Co-SCN-HNO_2和CO-丁二肟络合物的催化波,国内已应用于纯锌和矿石中微量钴的测定,其中后者的灵敏度达4×10~(-8)M。我们根据资料的经验,通过试验发现钻在砷(Ⅲ)-硫氰酸钾-抗坏血酸底液中,有一个灵敏的催化波,钴的
Polarographic catalytic wave of cobalt has many reports at home and abroad, more of which is the catalytic wave of cobalt in cystine, but has not been applied in the analysis of mineral raw materials. In recent years, the catalytic wave of Co-SCN-HNO_2 and CO-butadoxime complexes proposed abroad has been applied to the determination of trace cobalt in pure zinc and ores in China. The sensitivity of the latter is 4 × 10 -8 ) M. According to the experience of our data, we found through experiments that in the arsenic (III) -chrisium thiocyanate-ascorbate solution, there is a sensitive catalytic wave of cobalt