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在分析水果中的植物生长调节剂的过程中,以氧化伊米达酸框架-8作为高亲和度吸收剂,用于分散固相提取

Lian Xia¹, Can Yuan², Tianqiang He¹

¹Chemistry and Chemical Engineering College, Qufu Normal University, Qufu, Shandong Province 273165, P. R. China. xialian01@163.com.

Analytical methods : advancing methods and applications

|July 19, 2024

概括

一种新的分散型固体相提取 (d-SPE) 方法,使用热立体伊米达酸框架-8 (ZIF-8) 提高了植物生长调节器 (PGR) 在食品中的检测灵敏度. 这种具有成本效益的方法提供了一种更简单,更有效的方法来分析复杂样本中的PGR.

科学领域:

分析化学分析化学
材料科学材料科学材料科学
食品安全食品安全

背景情况:

准确确定食品中的植物生长调节剂 (PGR) 是必不可少的,但具有挑战性.
现有的方法往往缺乏足够的灵敏度用于微量水平的PGR检测.
需要开发新型吸附剂来提高分析性能.

研究的目的:

开发一种高度敏感和高效的方法,用于在食品样本中确定植物生长调节剂 (PGR).
为了研究使用热利性伊米达酸框架-8 (ZIF-8) 作为分散固相提取 (d-SPE) 的吸附剂.
为了提高高性能液态染色学与二极管阵列检测 (HPLC-DAD) 方法的灵敏度,用于PGR分析.

主要方法:

凝聚氧化伊米达酸框架-8 (ZIF-8) 纳米颗粒的合成.
开发一种使用ZIF-8作为吸附剂的分散固相提取 (d-SPE) 协议.
优化d-SPE条件和分析植物生长调节剂 (PGRs) 使用HPLC-DAD.

主要成果:

由于其多孔结构和电子特性,ZIF-8对PGRs表现出强烈的亲和力,促进了协同作用.
优化的d-SPE-HPLC-DAD方法表现出增强的灵敏度,具有广泛的线性范围 (2.0-200 ng g-1),低检测极限 (0.9-8.0 ng g-1),以及高精度 (86.6-101.5%恢复).
该方法已成功应用于果实样本中的9个PGR的定量确定,并取得了令人满意的结果.

结论:

使用ZIF-8开发的d-SPE-HPLC-DAD方法为PGR检测提供了一种灵敏,简单,高效和具有成本效益的方法.
在复杂的食品矩阵中分析PGR的吸附剂中,ZIF-8显示出显著的潜力.
本研究提供了一种策略,用于设计针对性亲和吸收剂,用于环境和食品安全应用中的微量分析.

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