水浴蒸干–过硫酸铵分光光度法测定白酒中锰(1)
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【摘 要】目的:建立一种简便、经济实用、适合基层实验室检测白酒中锰的方法。方法:样品于水浴上蒸干,以水溶解残渣,用过硫酸铵分光光度法测定。结果:本方法在0~4.0μg/ml浓度范围内呈良好线性关系,相关系数为0.9996,相对标准偏差在1.16%~4.97%之间,回收率在94.0%~101.5%之间,方法检出限为0.076μg/ml。结论:该方法操作简便,经济实用,具有灵敏度高、准确度好的特点,尤其适合缺少精密仪器的基层实验室进行白酒中锰的检测。
【关键词】分光光度法;过硫酸铵;白酒;锰
【Abstract】Objective:To establish a simple,economical and practical method which is suitable for the primary lab to determine mangancse in wine.Methods:Sample was taken to dry over water bath,water dissolves the rump,using Spectrophotometric determination of ammonium persulfate.Results:The method has good linear within the range of 0~4.0μg/ml,The correlation coefficient is 0.9996,relative standard deviation is 1 ......
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