改变溶液的酸度及还原剂的配制方法，找出最佳分析条件。
Methods the acidity of the solution and preparation method of reductant were changed, and the optimum analysis conditions were discovered.
以微波消解为样品前处理方法，建立了大米微波消解的最佳分析条件。
The microwave digestion of samples was used, and the optimum conditions for the digestion were developed.
提出了方法的最佳分析条件，从而使分析的结果在国家标准的误差范围之内。
The perfect analytic condition is also proposed so that the analytic results are within the error range of national standard.
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