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提出了用石墨炉原子吸收法测定绿色食品农田腐殖土中Pb、Cr、Cd ,以PdCl2 和NH4H2 PO4作为基体改进剂 ,经国家标准物质测定证明本法可行 .
The determination of Pb, Cr and Cd in humus soil of green food field by graphite furnace atomic absorption spectrometry was proposed. PdCl2 and NH4H2PO4 were used as matrix improvers. The determination of the national standard material proved that this method is feasible.