[Determination of lead in whole blood by graphite furnace atomic absorption spectrometry with matrix modifier and L'vov platform].
Lead in whole blood has been determined by graphite furnace atomic absorption spectrometry with matrix modifier and L'vov platform. It's found that addition of the mixture solution of 0.6% NH4H2PO4 and 0.4% NH4NO3 as matrix modifier, the ash temperature will increase up to 900 degrees C. 750 degrees C is practically used for ash temperature. D2 lamp is used for background correction. Lead in whole blood was directly determined after addition of 0.3% Triton X-100 without digestion. The analytical results of six whole samples is satisfactory. The recoveries are 93%-106%. The relative standard deviations are 3%-7%. The sensitivity of characteristic mass is 6.0 pg/1%.
Kai
X
X
Department of Chemistry, Anqing Normal College, 246011 Anqing.
Zhang
Q
Q
Ling
B
B
Chen
Y
Y
D006801:Humans; D007854:Lead / Q000097:blood*; D009566:Nitrates; D010710:Phosphates; D012680:Sensitivity and Specificity; D013054:Spectrophotometry, Atomic / Q000379:methods*; D013696:Temperature
D009566:Nitrates; D010710:Phosphates; C024788:ammonium phosphate; D007854:Lead; C006568:ammonium nitrate