Magnetic Sorbents Based on Hydrophobized Silicas: Influence of Structural Matrix Parameters on Magnetic and Sorption Properties

被引:0
|
作者
Karsakova, Iu. V. [1 ]
Goncharova, E. N. [2 ]
Tikhomirova, T. I. [1 ]
机构
[1] Lomonosov Moscow State Univ, Dept Chem, Moscow 119991, Russia
[2] OOO NVTs Agrovetzaschita, Moscow 129329, Russia
关键词
sorption; chemically modified silica; magnetite nanoparticles; magnetic sorbents; SOLID-PHASE EXTRACTION; PERFORMANCE LIQUID-CHROMATOGRAPHY; TANDEM MASS-SPECTROMETRY; FACILE SYNTHESIS; QUECHERS METHOD;
D O I
10.1134/S1061934824010064
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The magnetic and sorption properties and structural characteristics of hydrophobized silicas (CMS-C16) modified with magnetite nanoparticles (MNPs) are studied. The structural characteristics of CMS when modified with MNPs, established by low-temperature nitrogen adsorption, practically do not change, and the sorption and magnetic properties depend to the greatest extent on the size of the sorbent particles. The dependence of the efficiency of extraction of some organic compounds on magnetic sorbents on the size of sorbate molecules is found. The magnetic sorbent was used for the sample preparation using the QuEChERS method for determining the active ingredients of drugs and their metabolites in animal kidneys using liquid chromatography-mass spectrometry.
引用
收藏
页码:29 / 34
页数:6
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