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首页> 外文期刊>Clinical Chemistry: Journal of the American Association for Clinical Chemists >Polarized Zeeman-effect flameless atomic absorption spectrometry of cadmium, copper, lead, and manganese in human kidney cortex.
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Polarized Zeeman-effect flameless atomic absorption spectrometry of cadmium, copper, lead, and manganese in human kidney cortex.

机译：塞曼效应的偏光无焰原子吸收光谱法测定人肾皮质中的镉，铜，铅和锰。

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摘要

We used polarized Zeeman-effect flameless atomic absorption spectroscopy to quantitatively measure cadmium, copper, lead, and manganese in a nitric acid digest of lyophilized human kidney cortex. Within-run coefficients of variation for cadmium, copper, lead, and manganese, 15.3, 177.2, 84.2, and 56.3 microgram/L, respectively, were 4.1, 6.3, 3.7, and 5.6%, respectively. Between-run coefficients of variation were 6.9, 5.5, 5.9, and 6.3%, respectively, for cadmium, copper, lead, and manganese concentrations of 135.1, 12.8, 2.72, and 3.80 microgram/g, respectively. For cadmium, copper, lead, and manganese digest concentrations (mean +/- SE) of 15.3 +/- 0.6, 41.4 +/- 2.6, 9.4 +/- 0.6, and 20.9 +/- 0.4 microgram/L, respectively, the detection limits were 5.2 microgram/L for copper, 1.2 microgram/L for both cadmium and lead, and 0.8 microgram/L for manganese. Assays were linear to 75 microgram/L for cadmium, 100 microgram/L for manganese, and 200 microgram/L for copper and lead. Average analytical recoveries for the four metals ranged between 95 and 101%. Because these metals were quantitated in the same digest of kidney cortex, the values for each digest gave a trace-metal profile for each autopsy specimen.
机译：我们使用偏振塞曼效应无焰原子吸收光谱法定量测量了冻干人肾皮质硝酸消化液中的镉，铜，铅和锰。镉，铜，铅和锰的批内变异系数分别为15.3、177.2、84.2和56.3微克/升，分别为4.1、6.3、3.7和5.6％。镉，铜，铅和锰的浓度分别为135.1、12.8、2.72和3.80微克/克，分批间变异系数分别为6.9％，5.5、5.9和6.3％。对于镉，铜，铅和锰的消化物浓度（平均值+/- SE）分别为15.3 +/- 0.6、41.4 +/- 2.6、9.4 +/- 0.6和20.9 +/- 0.4微克/升，铜的检出限为5.2微克/升，镉和铅的检出限为1.2微克/升，锰的检出限为0.8微克/升。镉的测定线性至75微克/升，锰的测定至100微克/升，铜和铅的测定至200微克/升。四种金属的平均分析回收率在95％至101％之间。由于这些金属是在相同的肾皮质消化物中定量的，因此每个消化的值给出了每个尸检样本的微量金属曲线。

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