| 蜜饯制品中SO_2残留检测方法的优化 |
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| 引用本文： | 周玮婧,冯光.蜜饯制品中SO_2残留检测方法的优化[J].安徽农业科学,2012,40(16):8956-8957,9040. |
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| 作者姓名： | 周玮婧 冯光 |
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| 作者单位： | 武汉市食品药品检验所,湖北武汉,430012 |
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| 摘 要： | 目的]对蜜饯制品中SO2残留的检测方法进行优化。方法]采用BUCHI全自动凯氏定氮仪替代全玻璃蒸馏装置进行蒸馏蜜饯制品中的SO2,通过正交试验优化蒸馏过程,并按国标GB/T5009.34-2003滴定法测定SO2含量。结果]蒸馏最佳条件为时间9 min,加水体积50 ml,取样量5 g;相对标准偏差(RSD)在0.7%～1.4%,回收率在96.8%～98.8%。结论]该方法反应速度快,精密度高,适用于蜜饯制品中SO2残留量的测定。
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| 关 键 词： | 蜜饯制品 SO残留 检测 优化 |
Optimization of Determination Method of Sulfur Dioxide Residue in Preserved Fruit |
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| Institution: | ZHOU Wei-jing et al(Wuhan Institute for Food and Drug Control,Wuhan,Hubei 430012) |
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| Abstract: | Objective] The aim was to optimize the determination method of sulfur dioxide residue in preserved fruit.Method] Distillation of sulfur dioxide residue in preserved fruit was attempted by using the method of BUCHI auto-Kjeldahl’s apparatus replaced the glass distiller,and the content of sulfur dioxide was determined according to the international standard GB/T5009.34-2003.Result]The results showed that the optimum distillation conditions based on orthogonal test were as follows: samples 5 g,water 50 ml,distillation time 9 min.The relative standard deviations of this method were 0.7%-1.4%,the recoveries were 96.8%-98.8%.Conclusion] This method was rapid,accurate,and suitable for the determination of sulfur dioxide residue in preserved fruit. |
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| Keywords: | Preserved fruit Sulfur dioxide residue Determination Optimization |
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