洗衣粉中磷含量的测定  

Determination on Phosphorus Content in Detergent

作　　者：吴艳红[1] 周福会[1] 高智席[1] 

机构地区：[1]遵义师范学院化学系,贵州遵义563002

出　　处：《安徽农业科学》2009年第15期6852-6853,共2页Journal of Anhui Agricultural Sciences

基　　金：贵州省教育厅自然科学青年项目(黔教科2007072)

摘　　要：[目的]为低磷洗衣粉的生产及应用提供参考资料。[方法]以白猫、雕牌、碧浪、立白、奥妙、超能、奇强、汰渍8种常用洗衣粉为材料配制样品液,以抗坏血酸作显色剂,采用分光光度法测定样品液的吸光度,根据磷标准曲线确定各品牌洗衣粉中的磷含量。[结果]建立的磷标准曲线方程为:A=0.289 3C+0.005 3(R2=0.998 7),线性关系良好;所测样品中超能洗衣粉含磷量最高,为21.463 0%,其次为奇强洗衣粉,含磷量为17.511 3%,汰渍洗衣粉含磷量最低,为0.025 0%;37.5%的供试洗衣粉中磷含量超过国家规定标准(1.1%)。[结论]超能和奇强洗衣粉中磷含量严重超标。[ Objective ] The study was to provide the reference for the production arid application of detergent with low phosphorus content. [ Method] The sample solutions of detergent were prepared with the materials of 8 kinds of detergent such as Balmao, Diaopai, Bilang, Libai, Aomtao, Chaoneng, Qiqiang and Taizi, with ascorbic acid as the chromogenic reagent, the absorbance of sample solutions were detected, and the phosphorus content in detergent were determined according to the standard curve of phosphorus. [ Result ] The established standard curve of phosphorus was A = 0.289 3C ＋ 0.005 3 （R^2 =0.998 7）, its linear relationship was good. Among the samples of detergent, the phosphorus content in Chaoneng was the highest, being 21.463 0%, the following was that in Qiqiang, and that in Taizi was the lowest, being 0.025 0%. Hhe phosphorus content in 37.5% tested detergent was above the state requirement standard （ 1.1% ）. [ Conclusion] Phosphorus contents in Chaining and Qiqiang detergent were seriously exceeded the standards.

关 键 词：洗衣粉 磷含量 分光光度法 

分 类 号：O622[理学—有机化学]