摘要:
本文为血清中痕量铬、锰的分析化验提供了一个直接、快速且准确的方法。采用Zr盐处理石墨管及L'VOV平台管,以克服血基质的严重干扰。对痕量Mn和Cr的原子化行为进行了较系统的研究。并使Mn与Cr的水标液校正曲线和血样标准加入曲线斜率比近似于1,从而进一步简化了步骤。本法对血清中Mn,Cr的特征质量与检测限分别为2.82pg/0.0044As,9.24pg/0.0044As;0.098ng/ml(20),0.147ng/ml(20)。我室正在应用站法对心血管疾病的临床诊断,在保定地区医院的合作下进行探索。
Abstract:
The present paper reports a direct, rapid, and accurate method for the determination of trace chromium and manganese in human serum. The severe interferences of serum matrix with the analysis have carefully been circumvented by a systematic study on the atomization behaviors of the elements measured using L'vov platform tube and/or pyrolytic tube pretreated with zirconium salt, which make the slope ratio of aqueous standard working curve to that of the serum standard additions close to unity. The characteristic concentrations and detection limits for serum manganese and chromium are 2.82pg/0.0044 As , 9.24Pg/0.0044As; 0.036ppb(2σ), 0.147ppb(2σ), respectively. The method Mas been put into practice for the stud yon the early diagnostic purposes of cardiovascular diseases at our research lab. for a collaboration project with the Hospital of Baodjng Prefecture,
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