Results Total standard deviation of every solution was less than 5% of the concentration or detection limit. The confident limit of total average rate of recovery in sample kept in range of allowable.

结果各种溶液测定的总标准差小于其浓度的5 %或检出限，总平均回收率可信限在允许范围内。

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There had no obvious difference between these two methods, the relative standard deviation was less than 10%, sample recovery rate was 86~119%.

两种方法测定不同类型水中的总铬结果无明显差异，相对偏差均小于10%， 回收率为86～119%。

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