基于GC-HRMS和LC-HRMS的新方法的开发,用于在土壤中确定非甲酸盐增塑剂
Raquel Capilla-Flores1, Gonzalo Egea-Castro1, Rosalía López-Ruíz1
1Research Group "Analytical Chemistry of Contaminants", Department of Chemistry and Physics, Research Centre for Mediterranean Intensive Agrosystems and Agri-Food Biotechnology (CIAIMBITAL), University of Almeria, Agrifood Campus of International Excellence, ceiA3, E-04120 Almeria, Spain.
The Science of the total environment
|January 19, 2024
概括
这项研究开发了新的方法来检测土壤中的非甲酸盐增塑剂 (NPP). 这些方法发现了HCPK和TXIB等常见的NPP,并检测了一些酸盐,表明了广泛的塑化剂存在.
科学领域:
- 环境化学环境化学
- 分析化学 分析化学
背景情况:
- 酸盐对人类健康和生态系统构成风险.
- 非酸盐增塑剂 (NPPs) 正在成为更安全的替代品.
- 需要准确的方法来监测核电站在环境矩阵,如土壤.
研究的目的:
- 开发和验证用于在土壤中确定28个商业核电站的新型分析方法.
- 应用这些方法来分析来自阿尔梅里亚的土壤样本.
- 识别和量化环境中普遍存在的核电站和其他可塑化剂.
主要方法:
- 开发使用气体染色学高分辨率质谱法 (GC-HRMS-Q-Orbitrap) 和液体染色学高分辨率质谱法 (LC-HRMS-Q-Orbitrap) 的两种新方法.
- 固体-液体提取 (SLE) 使用乙烯酸,乙二或水作为溶剂.
- 方法验证通过恢复率和相对标准偏差 (RSD) 进行评估.
主要成果:
- GC方法显示恢复率从84.9%到110.8%;LC方法显示恢复率从73.1%到115.4%.
- 两种方法的RSD值一般都低于20%.
- 经常检测到的NPPs是1-基环基 (HCPK) 和2,2,4-三甲基-1,3-丁二醇二异酸盐 (TXIB). 此外,还发现了酸盐和其他可塑剂.
结论:
- 经过验证的GC-HRMS和LC-HRMS方法对于在土壤中确定NPP是有效的.
- 该研究证实了阿尔梅里亚土壤中存在各种塑化剂,包括NPP和酸盐.
- 这些发现强调了需要持续监测环境中的塑化剂的必要性.
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