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| Application Progress of Dispersive Liquid-Liquid Microextraction in Food Analysis |
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| DOI：10.3969/j.issn.1004-4957.年份.月份 |
| KeyWord:dispersive liquid-liquid microextraction（DLLME） food analysis application review |
| Author | Institution |
| CAO Jiang-ping,XIE Qi-long,ZHOU Ji-mei,YI Zong-hui |
1.宁夏师范学院化学与化学工程学院;2.中国科学院山西煤炭化学研究所煤转化国家重点实验室 |
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| Abstract: |
| In recent years,more and more attention has been focused on dispersive liquid-liquid microextraction（DLLME） which appeared as a new liquid-phase microextraction（LPME） technique.DLLME has been widely applied in the extraction of both inorganic and organic analytes from different matrices due to its simplicity of the procedure,low solvent consumption,and high enrichment factors from a wide gap between acceptor and donor phases.However,several innate drawbacks of DLLME like toxic extractant solvents used or a poor selection has restricted the technique’s use in certain fields.Recent developments in DLLME operation mode,e.g.,low density solvent-based DLLME,DLLME based on solidification of floating organic drop,the use of an auxiliary solvent for adjustment of density of extraction mixture,the application of ionic liquid-based DLLME,and reversed-phase DLLME by using water as extractant in determination of some species in food are presented in the review.This work also describes the principle,procedure and influence factors including the type and volume of extractants and dispersers,the sample solution pH value,addition of salt and extraction time of this method. |
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