摘要
建立了高压液相色谱测定有机胺固化剂中水杨酸含量的方法。优化后的高压液相色谱条件为：C18柱（4.6 mm×250 mm,5μm）,20μL进样量,214 nm UV检测波长,乙腈（A流动相）-三乙胺/磷酸/水缓冲液（B流动相,p H=6.35）梯度洗脱。在测试范围内,紫外吸收强度与水杨酸溶液浓度呈良好线性关系,线性回归系数为0.999 7,加标回收率符合85%~115%的规范。
The high pressure liquid chromatography method for determining the content of salicylic acid in organic amine curing agent was established. The optimized HPLC conditions were as follows：C18 column（4.6 mm × 250 mm,5 μm）,injection volume 20 μL,214 nm UV detection wavelength,gradient elution by acetonitrile（mobile phase A）-triethylamine phosphate buffer（mobile phase B,p H=6.35）. The results showed that the UV absorption intensity had a good linear relation with the concentration of salicylic acid solution in the test range. The linear regression coefficient was 0.999 7 and the recoveries of standard addition met the regular standard of 85%~115%.
作者
陈德胜
闫锦荣
陆绍宁
何朝霞
罗炎
CHEN De-sheng, YAN Jin-rong, LU Shao-ning, HE Zhao-xia, LUO Yan＊(College of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, Chin)
出处
《热固性树脂》
CAS
CSCD
北大核心
2018年第2期65-68,共4页
Thermosetting Resin
