期刊文献+

超高效合相色谱法快速检测塑料食品接触材料中13种紫外吸收剂 被引量:8

Rapid determination of 13 ultraviolet absorbents in plastic food contact materials by ultra-performance convergence chromatography
下载PDF
导出
摘要 建立了一种同时检测塑料食品接触材料中13种紫外吸收剂的超高效合相色谱法。以甲醇为溶剂对塑料食品接触材料样品进行超声提取,经C18固相萃取柱净化,过0.22 μ m有机滤膜,采用超高效合相色谱仪分析。选择ACQUTY UPC 2 HSS C18 SB色谱柱(150 mm×3.0 mm, 1.8 μ m),以超临界二氧化碳为流动相,异丙醇为改性剂进行梯度洗脱,在最优色谱条件下,13种紫外吸收剂能够在4 min内实现有效分离。结果表明,在各自线性范围内,13种紫外吸收剂的线性关系良好,标准曲线相关系数不低于 0.998 5 ,检出限( S/N =3)为0.05~0.15 mg/kg ,加标回收率为86.8%~115.7%,相对标准偏差为0.73%~5.61%。该方法快速简便,准确可靠,同时大大减少了有机溶剂的消耗,可用于塑料食品接触材料中13种紫外吸收剂的快速检测。 A rapid method based on ultra-performance convergence chromatography (UPC 2) was developed for the analysis of 13 ultraviolet (UV) absorbents in plastic food contact materials. The UV absorbents were extracted from plastic food contact materials by supersonic extraction with methanol, purified by C18 solid phase extraction column, and analyzed via UPC 2 before filtration with an organic filtration membrane (0.22 μ m). An ACQUTY UPC 2 HSS C18 SB chromatographic column (150 mm×3.0 mm, 1.8 μ m) was used for the detection of the UV absorbents . An effective separation was achieved within 4 min under the optimized conditions. The mobile phases were supercritical carbon dioxide and isopropanol as a modifier. The results showed that the 13 UV absorbents exhibited good linear relationships in the respective linear ranges with the correlation coefficients no less than 0.998 5 . The limits of detection ( S/N =3) were in the range of 0.05-0.15 mg/kg . The recoveries were from 86.8% to 115.7%, and the relative standard deviations were between 0.73% and 5.61%. This method is rapid, convenient, accurate and reliable, and can be used for the rapid determination of the 13 UV absorbents in plastic food contact materials.
作者 邱月 李根容 龙梅 李沿飞 夏之宁 QIU Yue;LI Genrong;LONG Mei;LI Yanfei;XIA Zhining(Chongqing Academy of Metrology and Quality Inspection, Chongqing 401123, China;College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China)
出处 《色谱》 CAS CSCD 北大核心 2019年第9期990-995,共6页 Chinese Journal of Chromatography
基金 重庆市科研院所绩效激励引导专项(cstc2018jxj10007)~~
关键词 超高效合相色谱 超声提取 紫外吸收剂 塑料食品接触材料 ultra-performance convergence chromatography (UPC 2) ultrasonic extraction ultraviolet absorbents plastic food contact materials
  • 相关文献

参考文献13

二级参考文献142

共引文献146

同被引文献131

引证文献8

二级引证文献20

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部