摘要
按照GB/T 2912.3—2009 《纺织品甲醛的测定第3部分:高效液相色谱法》,用不同配比的衍生化试液对甲醛标液进行衍生化,对照各自配比的甲醛标准工作曲线,测得甲醛含量。结果表明,随着乙腈(含0.5%乙酸)在衍生化试液中占比的增大,甲醛标准曲线的斜率逐渐升高,检出灵敏度增加。同时,当衍生化试液中乙腈(含0.5%乙酸)与水的比例在40/60~60/40之间,检测结果精准,回收率范围达到98.9%~102.7%。
According to GB/T 2912.3—2009 "Textiles-Determination of formaldehyde-Part 3:High performance liquid chromatography method",different ratios of derivatization reagents were used to derivatize formaldehyde standard solution.The formaldehyde content was determined by comparing the standard working curves of formaldehyde with their respective ratios.The results indicate that as the proportion of acetonitrile(containing 0.5 % acetic acid) in the derivatization reagent increases,the slope of the formaldehyde standard curve gradually increased,leading to enhanced detection sensitivity.Moreover,when the ratio of acetonitrile(containing 0.5 % acetic acid) to water in the derivatization reagent was between 40/60 and 60/40,the detection results were accurate,with a recovery rate ranging from 98.9 % to 102.7 %.
作者
李鹏宇
王文琪
黄志丁
闫宏伟
史红月
张伟
LI Pengyu;WANG Wenqi;HUANG Zhiding;YAN Hongwei;SHI Hongyue;ZHANG Wei(Sinolight Inspection&Certification CO.,LTD,Beijing 100015,China;China Fiber Quality Monitoring Center,Beijing 100007,China)
出处
《中国纤检》
2024年第5期61-64,共4页
China Fiber Inspection
关键词
高效液相色谱(HPLC)
甲醛
衍生化
high performance liquid chromatography(HPLC)
formaldehyde
derivatization
