| 卡尔曼滤波紫外光度法同时测定饮料中苯甲酸及糖精的研究 |
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| 引用本文： | 刘劭钢 汤爱良. 卡尔曼滤波紫外光度法同时测定饮料中苯甲酸及糖精的研究[J]. 分析试验室, 1997, 16(6): 61-63 |
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| 作者姓名： | 刘劭钢 汤爱良 |
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| 作者单位： | 湖南省岳阳市卫生防疫站，湖南省岳阳市药品检验所 |
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| 摘 要： | 在酸性条件下，用乙醚萃取、蒸干乙醚后，用ＮａＨＣＯ３溶解残渣，从复杂的样品中分离出苯甲酸和糖精，测定它们在２４５～２８１ｎｍ之间的紫外吸收，运用卡尔曼滤波算法计算两者的浓度，用新息序列监测干扰物质分离的程度。此法简化了许多分离手续，用于饮料分析，结果满意。
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| 关 键 词： | 卡尔曼滤波 光度法 苯甲酸 糖精 饮料 |
Simultaneous Determination of Saccharin and Benzoic Acid in Some Beverages Based on Kalman Filtering UV Spectro Photometry |
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| Abstract: | The sample was extracted with ethyl ether in acid solution and the residue dissolved in NaHCO 3 solution after ethyl ether having been was evaponated off .Thus saccharin and benzoic acid were separated for the sample matrix .The absorbances were measured at the wavelengths from 245 to 281nm,and saccharin and benzoic acid were determined by Kalman filtering method.The method is very simple and has been applied to the determination in some beverage samples with satisfactory results. |
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| Keywords: | Kalman filter benzoic acid saccharin multicomponent analysis |
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