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研究了石墨炉原子吸收光谱法测定氯化钯中痕量砷的分析方法。考察了基体氯化钯的影响，选择了适宜的石墨炉升温程序；提出了用抗坏血酸基体改进剂，消除了基体的干扰。检出限可达５ μｇ／Ｌ，检测范围为２．５～５０μｇ／ｇ，标准加料回收率为９６％ ～１０２％ 。ＲＳＤ为７．４％ （ｎ＝ ８）。
The method for the determination of trace arsenic in palladium chloride by graphite furnace atomic absorption spectrometry was studied. The effect of matrix palladium chloride was investigated, and the suitable graphite furnace temperature program was selected. Ascorbic acid matrix modifier was proposed to eliminate the matrix interference. The detection limit was up to 5 μg / L, the detection range was 2.5 ~ 50 μg / g, and the standard feed recovery was 96% -102%. The RSD was 7.4% (n = 8).