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采用预消化悬浮液进样GFAAS法测定饲料样品中的铜,并对测定条件进行了较深入的研究.通过对照实验证明,该法与常用的湿法消解法无显著性差异,本法的精密度（RSD） 为3.76％,加标回收率为95％.
The determination of copper in feed samples by GFAAS method was carried out by pre-digested suspension sampling method and the determination conditions were studied in depth.It was proved by comparison experiment that there was no significant difference between this method and the commonly used wet digestion method, Degree (RSD) was 3.76%, and the recovery rate was 95%.