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锌为人体必需微量元素之一,许多酶的活性与锌量有关,缺锌会严重影响青少年智力,易诱发癌症等。因此,近年来锌的测定在人体血清,皮肤及眼病等诊断和治疗中日趋重要,本文提出了一种测定人体血清中微量及痕量锌的阳极溶出伏安法。研究了支持电解质体系的选择及干扰元素的影响和消除方法。采用巯基棉分离与富集手段,试液先在pH=2.3～2.5范围,经巯基棉管分离除去Cu(Ⅱ)等干扰离子,后将流出液调至 pH=6,再经另一巯
Zinc is one of the essential trace elements of the human body, many enzyme activity and the amount of zinc, zinc deficiency will seriously affect the intelligence of young people, easy to induce cancer. Therefore, in recent years, the determination of zinc has become more and more important in the diagnosis and treatment of human serum, skin and eye diseases. In this paper, anodic stripping voltammetry for the determination of trace and trace zinc in human serum is proposed. The choice of supported electrolyte system and the influence and elimination of interfering elements were studied. Using thiol cotton separation and enrichment means, the test solution first in the pH range of 2.3 ~ 2.5, the thiol cotton tube to remove interference ions such as Cu (Ⅱ), the effluent was adjusted to pH = 6, and then by another mercaptan