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基于电纳米纤维的薄膜微提取用于丰富可生物降解塑料中的甲酸

Ping Su¹, Qiqi Wang¹, Mengxi Li¹

¹College of Chemistry, Beijing University of Chemical Technology, Beijing Key Laboratory of Environmentally Harmful Chemical Analysis, Beijing University of Chemical Technology, Beijing, P. R. China.

Journal of separation science

|July 22, 2024

概括

一种新的电纳米纤维吸附剂,PAN/TpBD,通过薄膜微提取,有效地从可生物降解塑料中提取甲酸 (PAE). 这种方法为PAE分析提供了高灵敏度和可重复使用性.

科学领域:

材料科学材料科学材料科学
分析化学分析化学
环境科学环境科学

背景情况:

甲酸 (PAE) 是一种常见的塑化剂,具有潜在的健康风险.
准确确定可生物降解塑料中的PAE对于安全和环境监测至关重要.
现有的分析方法可能缺乏效率或需要复杂的样本准备.

研究的目的:

开发一种新的电纳米纤维吸附剂,用于有效地提取PAE.
建立一种敏感且可靠的分析方法,用于在可生物降解塑料中确定PAE.
评估开发的吸附材料的性能和可重复使用性.

主要方法:

通过电制造基于聚烯 (PAN) 和2,4,6-三甲基 (TpBD) 的纳米纤维.
在薄膜微提取 (TFME) 中应用PAN/TpBD纳米纤维用于PAE隔离.
优化和验证TFME高性能液体染色学 (HPLC) 方法用于PAE量化.

主要成果:

PAN/TpBD吸附剂在五个目标PAE中显示出高提取效率 (>80%).
开发的TFME-HPLC方法实现了广泛的线性范围 (10-10,000μg/L) 和低检测极限 (0.69-2.72μg/L).
吸附剂显示出优异的可重复使用性 (经过六次使用后回收>80%) 和在真实样本中成功应用,回收率良好 (80.1%-113.4%).

结论:

新型PAN/TpBD电纳米纤维是PAE提取的高效吸附剂.
开发的TFME-HPLC方法为可生物降解塑料中微量PAE分析提供了灵敏,可靠和可重复使用的方法.
这种吸附剂显示出在各种矩阵中对PAE进行常规分析的巨大潜力.

关键词:

共价有机框架是共价有机框架.电力旋转是指电力旋转.电纳米纤维的纳米纤维.甲酸 Ester 甲酸甲酸甲酸甲酸薄膜微提取微型提取方法

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