摘要
建立了塑胶跑道中邻苯二甲酸二(2-乙基己基)酯DEHP的分析方法,探究了不同前处理条件,包括提取方式、提取溶剂、提取温度以及提取时间等因素对邻苯二甲酸二(2-乙基己基)酯提取效果的影响,并通过基质加标等对色谱条件进行优化。研究结果表明,以2-丁酮作为溶剂、在70℃条件下超声萃取1.5h,塑胶跑道中邻苯二甲酸二(2-乙基己基)酯的提取效果最佳。在5μg、10μg添加水平下,回收率为86.2%~93.3%,相对标准偏差小于5%,该方法准确度和精密度良好。
The analytical method of di-(2-ethylhexyl) phthalate in the plastic track material was established, and the effect of different pre-treatment conditions were explored on the extraction of di-(2-ethylhexyl) phthalate, including extraction method,extraction solvent, extraction temperature and extraction time. And the chromatographic conditions were optimized by matrix addition. The research results showed that the optimal pre-treatment conditions for extracting di-(2-ethylhexyl) phthalate from plastic track materials was ultrasonic extraction at 70℃ in 2-butanone solvent for 1.5 hours. When the addition amounts were 5μg and 10μg,the recovery rate was between 86.2% and 93.3%, the relative standard deviation was less than 5%.
作者
李思敏
覃红阳
王燕相
肖惠峰
林锐
LI Si-min;QIN Hong-yang;WANG Yan-xiang;XIAO Hui-feng;LIN Rui(Guangzhou Synthetic Materials Research Institute Co.,Ltd.,Guangzhou 510665,Guangdong,China)
出处
《合成材料老化与应用》
2022年第3期49-51,共3页
Synthetic Materials Aging and Application
关键词
邻苯二甲酸酯
DEHP
塑胶跑道
气相色谱质谱法
影响因素
phthalates
di-(2-ethylhexyl)phthalate
plastic track
gas chromatography mass spectrometry
influence factor