- P-ISSN 1225-0163
- E-ISSN 2288-8985
- P-ISSN1225-0163
- E-ISSN2288-8985
- SCOPUS, ESCI, KCI
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The role of matrix modifier for the determination of Lead (Pb) in blood by graphite furnace atomic absorption spectrometry
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1992, v.5 no.4, pp.349-358
Yoo,
K., &
Kwon,
J.
(1992). The role of matrix modifier for the determination of Lead (Pb) in blood by graphite furnace atomic absorption spectrometry. Analytical Science and Technology, 5(4), 349-358.
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Abstract
The direct determination of lead in the whole-blood by graphite furnace atomic absorption spectrometric analysis was carried out by using the sample which was diluted five-fold with 1% Triton X-100. Matrix modification was tried to remove the interferences of blood matrix and also to get the optimum analytical condition. Good agreement with certificated values in reference materials(bovine blood) supplied by comparison program in Japan was obstained when 1% <TEX>$(NH_4)_2HPO_4$</TEX> as matrix modifier and ashing temperature, <TEX>$700^{\circ}C$</TEX> were used or 1% <TEX>$(NH_4)_2HPO_4$</TEX> and 0.1% <TEX>$PdCl_2$</TEX> as matrix modifier and ashed at <TEX>$700^{\circ}C$</TEX>. Standard deviations were appeared as 2.2~6.3% for 1% <TEX>$(NH_4)_2HPO_4$</TEX> and 3.1~9.1% for 1% <TEX>$(NH_4)_2HPO_4$</TEX> and 0.1% <TEX>$PdCl_2$</TEX> in the range of <TEX>$31{\sim}624{\mu}gPb/l$</TEX>.
- keywords
- Lead, blood, graphite furnace AAS
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