Determination of Citric Acid Mono Polyethyleneoxide Nonyl Phenyl Ether Amber Diehylene Glycoldinitrate Diglycollic Amide by IR
WANG Wen-bo1,SHEN Shu-chang1,ZHANG Li-yuan2,AN Hong1
1. College of Chemistry and Chemical Engineering, Qiqihar University，Qiqihar 161006, China 2. College of Foodstuff, Heilongjiang August First Agriculture University，Daqing 163319, China
Abstract：In the present paper, citric acid, acetic anhydride, polyethyleneoxide nonyl phenyl ether and diethanolamine were used as raw materials. The raw materials were purified, and the intermediate products were synthesized. Finally, the citric acid mono polyethyleneoxide nonyl phenyl ether amber diehylene glycol dinitrate diglycollic amide was made. The acidamide of the product synthesized was determined by IR. There is a characteristic peak of CO in acidamide at 1 642.39 cm-1. Using potassium rhodanate as a internal standard, and according to Lambert-Beer law, a method to determine the citric acid mono polyethyleneoxide nonyl phenyl ether amber diehylene glycol dinitrate diglycollic amide was developed. The linear regression equation is A=0.007 6m+0.325 6 with a correlation coefficient (r2) of 0.998 9. The experimental results of the precisions and recoveries are satisfied. The method is very necessary for confirming the reaction extent and controlling quality of citric acid mono polyethyleneoxide nonyl phenyl ether amber diehylene glycol dinitrate diglycollic amide. So, the synthesis process conditions were right according to the IR data.
