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基于交联淀粉水凝胶复合氧化石墨烯纳米粒子的绿色整体固相萃取生物吸附剂用于苯并(a)芘分析。

Greener Monolithic Solid Phase Extraction Biosorbent Based on Calcium Cross-Linked Starch Cryogel Composite Graphene Oxide Nanoparticles for Benzo(a)pyrene Analysis.

机构信息

Integrated Science and Technology Research Center, Faculty of Technology and Environment, Phuket Campus, Prince of Songkla University, Kathu, Phuket 83120, Thailand.

Center of Excellence for Innovation in Chemistry, Division of Physical Science, Faculty of Science, Hat Yai Campus, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand.

出版信息

Molecules. 2021 Oct 13;26(20):6163. doi: 10.3390/molecules26206163.

DOI:10.3390/molecules26206163
PMID:34684744
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8539787/
Abstract

Benzo(a)pyrene (BaP) has been recognized as a marker for the detection of carcinogenic polycyclic aromatic hydrocarbons. In this work, a novel monolithic solid-phase extraction (SPE) sorbent based on graphene oxide nanoparticles (GO) in starch-based cryogel composite (GO-Cry) was successfully prepared for BaP analysis. Rice flour and tapioca starch (gel precursors) were gelatinized in limewater (cross-linker) under alkaline conditions before addition of GO (filler) that can increase the ability to extract BaP up to 2.6-fold. BaP analysis had a linear range of 10 to 1000 µgL with good linearity ( = 0.9971) and high sensitivity (4.1 ± 0.1 a.u./(µgL)). The limit of detection and limit of quantification were 4.21 ± 0.06 and 14.04 ± 0.19 µgL, respectively, with excellent precision (0.17 to 2.45%RSD). The accuracy in terms of recovery from spiked samples was in the range of 84 to 110% with no significant difference to a C cartridge. GO-Cry can be reproducibly prepared with 2.8%RSD from 4 lots and can be reused at least 10 times, which not only helps reduce the analysis costs (~0.41USD per analysis), but also reduces the resultant waste to the environment.

摘要

苯并(a)芘 (BaP) 已被公认为检测致癌多环芳烃的标志物。在这项工作中，成功制备了一种基于氧化石墨烯纳米粒子 (GO) 的新型整体固相萃取 (SPE) 吸附剂，用于 BaP 分析。米粉和木薯淀粉（凝胶前体）在石灰水中（交联剂）在碱性条件下胶化，然后加入 GO（填充剂），可将 BaP 的提取能力提高 2.6 倍。BaP 分析的线性范围为 10 至 1000 µgL，具有良好的线性（= 0.9971）和高灵敏度（4.1 ± 0.1 a.u./(µgL)）。检测限和定量限分别为 4.21 ± 0.06 和 14.04 ± 0.19 µgL，具有出色的精密度（0.17 至 2.45%RSD）。从加标样品中回收的准确度在 84%至 110%范围内，与 C 柱无显著差异。GO-Cry 可以从 4 个批次中以 2.8%RSD 重现制备，并且至少可以重复使用 10 次，这不仅有助于降低分析成本（~0.41USD/次），还减少了对环境的废物产生。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/079b/8539787/382105a3c5f8/molecules-26-06163-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/079b/8539787/60b7bb59357c/molecules-26-06163-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/079b/8539787/90200fc7c13d/molecules-26-06163-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/079b/8539787/16957e01e00a/molecules-26-06163-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/079b/8539787/6c6252cb8420/molecules-26-06163-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/079b/8539787/0b004f6ae50e/molecules-26-06163-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/079b/8539787/4744eb344276/molecules-26-06163-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/079b/8539787/382105a3c5f8/molecules-26-06163-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/079b/8539787/60b7bb59357c/molecules-26-06163-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/079b/8539787/90200fc7c13d/molecules-26-06163-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/079b/8539787/16957e01e00a/molecules-26-06163-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/079b/8539787/6c6252cb8420/molecules-26-06163-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/079b/8539787/0b004f6ae50e/molecules-26-06163-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/079b/8539787/4744eb344276/molecules-26-06163-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/079b/8539787/382105a3c5f8/molecules-26-06163-g007.jpg

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[4]
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