Recent analysis of chemical compounds and metal ions in foodstuffs usingdispersive liquid–liquid microextraction method

Dispersive liquid–liquid microextraction (DLLME) is a novel and powerful preconcentrationtechnique that uses a ternary component solvent system and received special attention because ofits simplicity, low cost, high recovery, high enrichment factors (EFs), and short extraction time.The dispersion of an organic extraction solvent at micro-liter level in aqueous samples is the keystep in DLLME. In this review, in order to encourage further development of DLLME, itscombination with different analytical techniques such as gas chromatography (GC), highperformance liquid chromatography (HPLC), inductively coupled plasma-optical emissionspectrometry (ICP-OES), electrothermal atomic absorption spectrometry (ET-AAS) and flameatomic absorption spectroscopy (FAAS) for the determination of the organic and inorganiccompounds was be discussed. Also, the applications of DLLME and closely relatedmicroextraction techniques for analysis of metal ions in food products were compiled.

کلیدواژه ها:

Dispersive liquid-liquid microextraction ، Sample pretreatment ، Microextractiontechniques ، Food analysis