Direct analysis of lead in fruit juice by anodic stripping voltammetry with no prior sample preparation.
作者信息
Zink E W, Matson W R, Pfeiffer L, Pietrzyk A F
出版信息
J Assoc Off Anal Chem. 1978 May;61(3):652-9.
PMID:649557
Abstract
A method is presented for determining lead in fruit juice in less than 3 min after instrument calibration. The range examined is 0.01 to 1.3 ppm lead. The method is compared with 3 other methods in general use. Standard error of estimates between the methods compared range from 0.023 to 0.051 ppm for a set of 50 samples and from 0.037 to 0.091 ppm for a set of 9 samples. Regression correlation coefficients between methods range from 0.968 to 0.995. Judged by the comparisons, the direct method is precise and accurate over greater than a 100-fold range of lead concentrations.
摘要
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