自愈水凝胶
吸附剂
样品制备
固相微萃取
固相萃取
萃取(化学)
材料科学
吸附
色谱法
纳米技术
化学
气相色谱-质谱法
有机化学
高分子化学
质谱法
作者
Samin Hamidi,Monireh Zamani-Kalajahi
标识
DOI:10.1080/10408347.2021.1982375
摘要
Recently, the application of hydrogel materials in sample preparation techniques has increased dramatically. This review discusses application of hydrogels in the field of sample preparation and focuses on extraction techniques practiced with hydrogel materials as sorbent and coating materials, and discusses their synthesis route. After introducing hydrogels, their applications in a variety of solid phase extraction methods (as one of the types of sample preparation techniques) are described. These methods include solid-phase microextraction (SPME), micro solid-phase extraction (µ-SPE) and magnetic solid-phase extraction (MSPE), in which hydrogels are used as the main adsorbent for the extraction and pre-concentration of heavy metals, pesticides, herbicides, insecticides, drugs and pigments. Also, the mechanism of adsorption of the above analytes by different hydrogels and the advantages of using hydrogels in the solid-phase extraction techniques are discussed. In the following, applications of pH-sensitive hydrogels as stimuli-responsive polymers, are discussed in the sample preparation field. Finally, conclusions and future perspectives are covered in the last section that will be very helpful for future studies.
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