研究了用对羧基苯偶氮硫代若丹宁(CPATR)为柱前衍生试剂,以安捷伦ZORBAX Stable Bound(4.6 rm×50 mm,1.8μm)快速分离柱为固定相,42%的甲醇(内含2%的醋酸)为流动相,高效液相色谱分离,二极管矩阵检测器检测测定金、铂、钯、铑的的方法,4种贵金属元素的络合物在2.0min内可达到基线分离.根据信噪比(S/N=3)得各金属离子的检测限分别为:金1.5μg·L-1,铂1.0μg·L-1,钯0.6μg·L-1,铑0.8μg·L-1,方法用于氰化渣样品中痕量金、铂、钯、铑的测定,相对标准偏差平均值在2.2%～2.7%之间,标准回收率平均在96%～102%之间,结果令人满意.
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