Proficiency Testing Results and Analysis of the Determination of Aluminum Content in Pastry by Inductively Coupled Plasma Mass Spectrometry
s:By participating in the proficiency testing to determine the aluminum content in pastries organized by ACAS,and analyzing the quality control process and test results,we aim to improve the technical capabilities of the laboratory and ensure the accuracy of the test results.The aluminum content of the two proficiency test samples was determined by inductively coupled plasma mass spectrometry(ICP-MS),and the organization evaluated the results using the Z-value evaluation method.The results showed a good linear relationship between aluminum content in the range of 0～3.0 mg·L-1,with a correlation coefficient of 0.999 8,the Z-values of sample numbers 23-K805 and 23-M508 were measured to be-0.5 and 0.4.The result is satisfactory and can provide reference for the detection of aluminum in pastries.
aluminiuminductively coupled plasma mass spectrometryproficiency testingpastry
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