Determination of Micro Lead in Facial Washing Milk by GFAAS
Rui Chen
Abstract
Rui Chen
Abstract
The determination of micro lead in facial washing milk was investigated by graphite furnace atomic absorption spectrometry(GFAAS),and measuring conditions were analyzed.The concentration of lead was linear with the absorbancy in the range of 0.00~40.00 μg/L,the regression equation was A = 0.003 272 C+0.008 470,the correlation coefficient was 0.999 0,the detection limit was 0.24 μg/L,the RSD were 0.55%,0.63%,1.96%,the recoveries were 99.4%,93.9%,95.3%.
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The determination of micro lead in facial washing milk was investigated by graphite furnace atomic absorption spectrometry(GFAAS),and measuring conditions were analyzed.The concentration of lead was linear with the absorbancy in the range of 0.00~40.00 μg/L,the regression equation was A = 0.003 272 C+0.008 470,the correlation coefficient was 0.999 0,the detection limit was 0.24 μg/L,the RSD were 0.55%,0.63%,1.96%,the recoveries were 99.4%,93.9%,95.3%.
Key concepts: Graphite furnace atomic absorption, Chemistry, Detection limit, Lead (geology), Analytical Chemistry (journal), Graphite, Mass spectrometry, Chromatography