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近年来文献中关于钼的催化波常有报导,我们曾将各种催化波作了比较。本文对其中氯酸盐催化的一种极谱波进行了较深入的研究,因为在我们试验钛-草酸与氯酸钾催化波的干扰时就看到钼的双峯催化波,因此试探了其他无机离子和有机酸的影响,得到与文献上所述不同的结果;当这些盐的浓度相当小的时候,催化电流不是减低而是增加,并改变波形。酒石酸钾在l0~(-2)M时,便能使催化波变为一个对称的高峯,峯电流大于原波高约10倍,远比Ko1thoff和Hodara只有硫酸时的氯酸钠催化波为灵敏,且易于掌握。我们从钼-酒石酸络离子的吸附和解吸现象解释了极谱峯的形成原因,并探讨了反
In recent years, the literature on the catalytic wave of molybdenum has been reported, we have made a variety of catalytic waves were compared. In this paper, a chromate-catalyzed polarographic wave has been studied in more depth because the bimodal catalytic wave of molybdenum was seen when we tested the interference of titanium-oxalic acid and potassium chlorate catalyzed by waves. Therefore, we explored other inorganic ions And the effects of organic acids give different results than those described in the literature; when the concentration of these salts is relatively small, the catalytic current increases instead of decreasing and the waveform changes. When potassium tartrate is l0 ~ (-2) M, the catalytic wave can be changed into a symmetrical peak, the peak current is about 10 times higher than that of the original wave, which is much more sensitive than the sodium chlorate catalytic wave when Ko1thoff and Hodara only have sulfuric acid. And easy to grasp. We explain the formation of polarographic peaks from the adsorption and desorption of molybdenum-tartaric acid complex ions,