Methods: the sample, after the nitric acid and the perchloric acid digestion was induced in the flame atom absorption spectrophotometer with standard series comparison quota.
方法：样品用硝酸和高氯酸消化后，导入火焰原子吸收分光光度计中，与标准系列比较定量。
Methods: the sample, after the nitric acid and the perchloric acid digestion was induced in the flame atom absorption spectrophotometer with standard series comparison quota.
方法：样品用硝酸和高氯酸消化后，导入火焰原子吸收分光光度计中，与标准系列比较定量。
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