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建立了双毛细管进样-火焰原子吸收光谱法测定皮革中微量锑的方法,利用微型多功能进样技术详细研究了氢化物发生对锑火焰原子吸收光谱法测定的各种影响因素,包括仪器工作条件、硼氢化钠溶液的浓度、酸度及共存离子的干扰等因素。在试验选定的最佳条件下,皮革样品加标回收率为97.8%～103.0%,方法检测限为0.001μg/mL,相对标准偏差小于3.3%。用于测定皮革中微量锑,结果令人满意。
A dual capillary injection-flame atomic absorption spectrometry method for the determination of trace antimony in leather was established. Various influencing factors for the determination of hydride in antimony by flame atomic absorption spectrometry were studied in detail using micro-multi-function injection technique, including instrument work Conditions, the concentration of sodium borohydride solution, acidity and interference of co-existing ions and other factors. Under the optimal conditions, the recovery of spiked leather samples was 97.8% ~ 103.0%, the detection limit was 0.001μg / mL, and the relative standard deviation was less than 3.3%. Used in the determination of trace antimony in leather, the result is satisfactory.