一种预处理方法结合了矩阵固相分散与分散液液微提取蔬菜中的多二乙醇,通过气色谱-并联质谱 (GC-MS) 量化
Sijie Xu1, Junxia Wang1,2, Dengxian Deng1
1School of Environmental Science and Engineering, Suzhou University of Science and Technology No. 99, Xuefu Road Suzhou 215009 China wjx_7297@163.com zhanenzhang@126.com.
RSC advances
|May 30, 2023
概括
一种新方法结合了矩阵固相分散 (MSPD) 和分散液液微提取 (DLLME) 来进行蔬菜中的快速聚二乙烯 (PBDE) 分析. 这种高效的技术为PBDE确定提供了更快,更具成本效益的替代方案.
科学领域:
- 环境化学环境化学
- 分析化学 分析化学
- 食品安全 食品安全
背景情况:
- 聚二乙烯 (PBDE) 是一种常见的有机污染物,在各种基质中发现,包括蔬菜.
- 准确和高效的方法来确定食品中的PBDE对于风险评估和消费者安全至关重要.
研究的目的:
- 为从蔬菜中提取PBDE开发和验证一种新的,快速且具有成本效益的预处理方法.
- 将矩阵固相分散 (MSPD) 与分散液液微提取 (DLLME) 结合起来,以进行增强的PBDE分析.
主要方法:
- 蔬菜样本经过冷干燥,并与矩阵固相分散 (MSPD) 的吸附剂混合.
- 提取的分析物被使用分散液-液微提取 (DLLME) 净化.
- 最终分析使用气体染色学-并联质谱法 (GC-MS) 进行.
主要成果:
- 开发的MSPD-DLLME方法显示出出色的线性 (R2>0.999) 和良好的恢复率 (82.9-113.8%).
- 实现了低检测极限 (1.9-75.1 ng kg-1) 和量化极限 (5.7-25.3 ng kg-1).
- 整个预处理和检测过程在30分钟内完成.
结论:
- 综合的MSPD-DLLME方法为蔬菜中的PBDE确定提供了高效和快速的方法.
- 这种技术是传统的可行的替代品,耗时,多步骤的提取程序.
- 该方法有助于改善食品安全监测,通过更快地分析污染物.
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相关概念视频
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