Zobrazeno 1 - 10
of 4 471
pro vyhledávání: '"Magnetic solid phase extraction"'
Publikováno v:
Shipin Kexue, Vol 45, Iss 20, Pp 263-269 (2024)
A magnetic solid phase extraction (M-SPE) based on covalent organic framework materials coupled with high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method was developed for the efficient determination of four aflatoxins
Externí odkaz:
https://doaj.org/article/edb9c278a707476fb74517a71fc90148
Publikováno v:
Food Chemistry: X, Vol 24, Iss , Pp 101858- (2024)
α-Dicarbonyl compounds (α-DCs), formed during food heating and storage, are crucial for assessing food safety and quality. However, the low concentration, high reactivity, and absence of chromophores of α-DCs make their detection challenging, ofte
Externí odkaz:
https://doaj.org/article/dce22ba2a06d43b6a3293161a3921de1
Autor:
Ai-Jun Huang, Xiu-Xiu Dong, Shu Tan, Kai Chen, Meiling Zhang, Bingrong Li, Hao Deng, Fan He, Hui Ni, Hongwu Wang, Zi-Jian Chen
Publikováno v:
Frontiers in Sustainable Food Systems, Vol 8 (2024)
Sample pretreatment is an essential procedure in pesticide analysis, as the matrix effect can significantly influence the results. In this study, a covalent organic framework (COF) was synthesized using 1,2,4,5-tetrakis-(4-formylphenyl)benzene (TFPB)
Externí odkaz:
https://doaj.org/article/500e2b23dfed41e7858f4afd84524329
Publikováno v:
Zhongguo shipin weisheng zazhi, Vol 36, Iss 5, Pp 541-549 (2024)
ObjectiveTo develop a rapid and quantitative method for the detection of enrofloxacin in chicken and pork using magnetic solid phase extraction （MSPE） combined with surface enhanced Raman spectroscopy （SERS）.MethodsMagnetic Fe3O4@ covalent or
Externí odkaz:
https://doaj.org/article/d8d2da6c73f14187bf5d53db63aa40b3
Autor:
Pengfei Ye, Ludan Yu, Jinhao Guo, Mingyue Yao, Junlang Qiu, Guosheng Chen, Jianqiao Xu, Fang Zhu, Gangfeng Ouyang
Publikováno v:
Green Analytical Chemistry, Vol 10, Iss , Pp 100136- (2024)
As the potential risks on human and aquatic animal exposed to the glucocorticoids in environment, it is essential to detect anti-epidemic pharmaceutical in real water samples. In this work, a core-shell shape, magnetic suspension particle sorbents of
Externí odkaz:
https://doaj.org/article/9ec2565ae3d04c1ab74bf6462c58102d
Publikováno v:
Talanta Open, Vol 9, Iss , Pp 100320- (2024)
Alkylphenols are widely applied in the field of industry and agriculture, but their endocrine disrupting properties harm to human health. Moreover, alkylphenols often exhibit the low content in complex samples. Thus, we proposed magnetic covalent org
Externí odkaz:
https://doaj.org/article/8d8aa8efdcdb451e9aee1d28f48d604f
Autor:
Chunli GUO, Xiaofeng YU, Fang HAN, Xueying JIA, Yutian LEI, Huijia LIU, Qiong WU, Tong LIN, Xionghai YI, Wei SONG
Publikováno v:
Shipin gongye ke-ji, Vol 45, Iss 3, Pp 253-261 (2024)
Magnetic graphene (Fe3O4@G) was synthesized as a magnetic solid phase extractor for the extraction and enrichment of organophosphorus pesticides in green tea by chemical coprecipitation method. Based on this, ultra high performance liquid chromatogra
Externí odkaz:
https://doaj.org/article/1c804bd9e2134404b29dfe6bbd669688
Publikováno v:
Molecules, Vol 29, Iss 19, p 4752 (2024)
The preparation of samples for instrumental analysis is the most essential and time-consuming stage of the entire analytical process; it also has the greatest impact on the analysis results. Concentrating the sample, changing its matrix, and removing
Externí odkaz:
https://doaj.org/article/e25f5e547d61460db079d285597408c0
Publikováno v:
شیمی کاربردی روز, Vol 18, Iss 69, Pp 45-56 (2023)
In this study, an attempt was made to synthesize a new sorbent based on the second generation of silica coated magnetic poly(amidoamine) (Fe3O4@SiO2@PAMAM) to improve the performance of magnetic solid phase extraction (MSPE) of some antifungal drugs
Externí odkaz:
https://doaj.org/article/22cd319e170e45a4ac3ed96995f9fafa
Publikováno v:
Green Processing and Synthesis, Vol 12, Iss 1, Pp 171-83 (2023)
Phorate, a highly toxic organophosphorus pesticide, poses significant risks due to its efficiency, versatility, and affordability. Therefore, studying pretreatment and detection methods for phorate in complex samples is crucial. In this study, we syn
Externí odkaz:
https://doaj.org/article/43a70b8294c94e91aece7e6dd2ca1e0c