烷基酰胺磷酸酯中磷含量的测定方法  

Determination of phosphorus content of the alkyl amido phosphate ester by ammonium vanadate-molybdate spectrophotometric method

作　　者：闫铨钊[1] 王培义[1] 范新雨 赵金凤[1] 

机构地区：[1]郑州轻工业学院材料与化学工程学院,河南郑州450002 [2]广东名臣化妆品有限公司,广东汕头515000

出　　处：《郑州轻工业学院学报（自然科学版）》2004年第3期4-6,10,共4页Journal of Zhengzhou University of Light Industry:Natural Science

基　　金：河南省科技攻关项目(981090145)

摘　　要：采用钒钼酸铵分光光度法测定烷基酰胺磷酸酯中的总磷,考查了测定波长、氧化剂的配比和用量、浓硫酸加入量、显色时间、试样称取量等对测定结果的影响.实验确定的最佳测定条件为:测定波长460nm,V(HNO3):V(HClO4)=1∶1～3∶1,氧化剂的加入量4mL,混合试剂加入量5mL,浓硫酸加入量6mL,显色时间15min～20min,试样称取量0.1g～0.2g.在此条件下,测定结果的平均相对误差为0.0476%.该法可用于烷基酰胺磷酸酯的定量分析.General phosphorus content of the alkyl amido phosphate ester is determined by ammonium vanadate-molybdate spectrophotometric method. The effect of determined wavelength,mixture proportion and amount of (oxidant,amount of) concentrated sulfuric,colour time,weight of sample on determined results is examined.The optimum determined conditions are as follows:Determined wavelength is 460 nm,V(HNO_3)∶(V(HClO_4)=1∶1～3∶1, amounts of oxidant,)mixed reagent and concentrated sulfuric acid are 4 mL, 5 mL,(6 mL respectively,)colour time is 15 min～20 min and weight of sample is 0.1 g～0.2 g.The average relative error of determined results is 0.0476% in the aforesaid conditions.This method can be used for quantitative analysis of the alkyl amido phosphate ester.

关 键 词：烷基酰胺磷酸酯 磷含量 测定方法 钒钼酸铵法 分光光度法 

分 类 号：TQ423.116[化学工程] TQ420.71