Wittig-Horner法生产荧光增白剂副产总磷含量测定  

Determination for Phosphorus( Total) of By-product in Preparation of Fluorescent Brighteners by Wittig-Horner Reaction

作　　者：王晓英[1] 李文胜[1] 王小林[1] 王景国[1] 

机构地区：[1]沈阳化工研究院有限公司,沈阳110021

出　　处：《染料与染色》2015年第5期49-51,共3页Dyestuffs and Coloration

摘　　要：Wittig-Horner法生产荧光增白剂过程中会产生大量含磷副产。本文提供了一种先用硫酸-过氧化氢湿法消解,再用磷钒钼黄分光光度法测定其总磷含量的方法。络合物在400 nm下的表观摩尔吸光系数为6.87╳10^4L·mol^-1·cm^-1,溶液在0~800μg/50 m L浓度范围内遵从比尔定律,标准偏差S〈0.2,变异系数〈0.6%,加标回收率为98%~101%。A great quantity of phosphorus-containing by-product was produced in manufacture of fluorescent brightener by Wittig- Homer reaction. A determination of total phosphorus was introduced, which digested by H2SO4-H2O2 and determined by Spectrophoto- metric Molybdovanadophosphate Method. Apparent molar absorptivity of the complex was 6.87╳10^4L·mol^-1·cm^-1 at 400nm and Beer＇s law was obeyed in the range of 0- 800 μg/50mL for phosphorus. Standard deviation S was less than 0. 2, coefficient of variation CV was less than 0. 6% and recoveries were 98% - 101%.

关 键 词：总磷 消解 测定 磷钒钼黄分光光度法 

分 类 号：TQ610.495[化学工程—精细化工]