化学发光
色谱法
萃取(化学)
检出限
线性范围
固相萃取
磁性纳米粒子
化学
材料科学
纤维
同种类的
分析化学(期刊)
纳米颗粒
纳米技术
热力学
物理
有机化学
作者
Wei Huang,Luyu Wei,Rongbin Nie,Xiaohan Li,Lu Peng,Yiping Chen
出处
期刊:Food Chemistry
[Elsevier]
日期:2022-12-30
卷期号:410: 135356-135356
被引量:12
标识
DOI:10.1016/j.foodchem.2022.135356
摘要
An integrated strategy for the rapid and sensitive detection of deoxynivalenol in cereals was developed by combining Fe3O4 magnetic nanoparticle-modified metal organic framework-5-based magnetic solid-phase extraction and the optical fiber-based homogeneous chemiluminescence immunosensor. The hybrid magnetic material was prepared and characterized, exhibiting good enrichment capacity up to 1.68 mg/g. The competitive immunoassay-based homogeneous chemiluminescence immunosensor enabled washing-free and high-sensitivity detection of deoxynivalenol. Under optimized conditions, this immunosensor could detect deoxynivalenol as low as 46.7 pg/mL with a quantitatively linear range of 0.1 to 1000 ng/mL. The recoveries of this integrated detection strategy in rice, corn, and wheat ranged from 80.0 % to 118.2 %, 91.1 % to 116.7 %, and 80.0 % to 91.5 %, respectively, with a relative standard deviation that did not exceed 9.11 %. More importantly, it shows great consistency with the high-performance liquid chromatography-mass spectrometry in blind sample analysis. This integrated detection strategy provides a convenient approach for mycotoxins screening in cereals.
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