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Bi, Fe, and Ti ternary co-doped ZrO2 nanocomposites as a mass spectrometry matrix for the determination of bisphenol A and tetrabromobisphenol A in tea
Microchimica Acta ( IF 5.7 ) Pub Date : 2020-09-26 , DOI: 10.1007/s00604-020-04544-9
Deshuai Zhen 1, 2 , Sisi Shi 1 , Chan Gao 1 , Qing Kang 3 , Xilin Xiao 2 , Craig A Grimes 1 , Qingyun Cai 1
Affiliation  

Bi, Fe, and Ti ternary co-doped ZrO2 (BFT-ZrO2) nanocomposites have been prepared by a sol-gel process and used as both adsorbent and matrix for the enrichment and determination of small molecules by surface-enhanced laser desorption/ionization time-of-flight mass spectrometry (SELDI-TOF MS). The BFT-ZrO2 nanocomposites not only can selectively enrich a wide variety of low-mass toxic pollutants but can also be used as an excellent matrix to enhance the laser desorption/ionization efficiency with low background noise and uniform co-crystalline film. Low limits of detection (LODs) (0.1 pg mL−1 for bisphenol A (BPA), 2 pg mL−1 for tetrabromobisphenol A (TBBPA), 0.1 pg mL−1 for alizarin (AZ), 0.001 pg mL−1for bisphenol S (BPS), 0.01 pg mL−1 for indigo blue (ID), 0.01 pg mL−1 for pentachlorophenol (PCP), 100 pg mL−1 for estradiol (E2), 0.001 pg mL−1 for cetyltrimethylammonium bromide (CTAB), 0.1 pg mL−1 for crystal violet (CV), 1 pg mL−1 for malachite green (MG), 0.01 pg mL−1 for rhodamine B (RhB), and 0.01 pg mL−1 for perfluorooctane sulfonate (PFOS) were achieved. The relative standard deviations (RSDs) of shot-to-shot are 9.4–24% and of sample-to-sample 5.2–17%. The BFT-ZrO2 matrix was successfully applied to the determination of TBBPA and BPA in tea samples. This method shows a new strategy for determination of toxic compounds in tea. Graphical abstract Graphical abstract

中文翻译:

Bi、Fe和Ti三元共掺杂ZrO2纳米复合材料作为质谱基质测定茶叶中的双酚A和四溴双酚A

Bi、Fe 和 Ti 三元共掺杂 ZrO2 (BFT-ZrO2) 纳米复合材料已通过溶胶-凝胶工艺制备,并用作吸附剂和基质,通过表面增强激光解吸/电离时间富集和测定小分子飞行中质谱 (SELDI-TOF MS)。BFT-ZrO2纳米复合材料不仅可以选择性地富集各种低质量的有毒污染物,而且还可以作为一种优良的基质,以低背景噪声和均匀的共晶膜提高激光解吸/电离效率。低检测限 (LOD)(双酚 A (BPA) 为 0.1 pg mL-1,四溴双酚 A (TBBPA) 为 2 pg mL-1,茜素 (AZ) 为 0.1 pg mL-1,双酚 S 为 0.001 pg mL-1) (BPS),靛蓝 (ID) 为 0.01 pg mL-1,五氯苯酚 (PCP) 为 0.01 pg mL-1,雌二醇 (E2) 为 100 pg mL-1,0。十六烷基三甲基溴化铵 (CTAB) 为 001 pg mL-1,结晶紫 (CV) 为 0.1 pg mL-1,孔雀石绿 (MG) 为 1 pg mL-1,罗丹明 B (RhB) 为 0.01 pg mL-1,以及 0.01全氟辛烷磺酸 (PFOS) 达到 pg mL-1。样品间的相对标准偏差 (RSD) 为 9.4–24%,样品间的相对标准偏差 (RSD) 为 5.2–17%。BFT-ZrO2 基质成功应用于茶叶样品中 TBBPA 和 BPA 的测定。该方法展示了一种测定茶叶中有毒化合物的新策略。图形摘要图形摘要 2–17%。BFT-ZrO2 基质成功应用于茶叶样品中 TBBPA 和 BPA 的测定。该方法展示了一种测定茶叶中有毒化合物的新策略。图形摘要图形摘要 2–17%。BFT-ZrO2 基质成功应用于茶叶样品中 TBBPA 和 BPA 的测定。该方法展示了一种测定茶叶中有毒化合物的新策略。图形摘要图形摘要
更新日期:2020-09-26
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