The application of CE‐MS in the trace analysis of environmental pollutants and food contaminants

Abstract

In this review, selected applications of CE-MS in recent years have been highlighted for the separation, detection and determination of environmental pollutants and food contaminants in selected samples. Trace analysis by CE-MS of analytes such as low molecular mass amines, nitroaromatics, alkylphosphonic acids, azo dyes, antidepressants, and antibiotic drugs, among others, in air, sediment and water samples have been reviewed. The CE-MS analysis of pesticides such as triazolopyrimidine sulphoanilides, different types of antibiotics (sulphonamides, beta-lactones, quinolones and tetracyclines) and other exogenous compounds such as acrylamide and toxic oligopeptides in food samples has also been reviewed. The review gives details on the fragmentations, where available, that the ionic species exhibit in-source and in ion trap, triple quadrupole and ToF MS analysers. A critical evaluation is also given of these recent CE-MS analytical methods for the separation, detection and determination of trace levels of such pollutants and contaminants with analytical information on the treatment of the samples, CE separation conditions, linearity ranges, LODs and recoveries from the different matrices presented.

Food Analysis: Present, Future, and Foodomics

“…This is the case of liquid chromatography online coupled to mass spectrometry (LC-MS) or tandem MS (LC-MS/MS) which have been extensively applied to ensure food safety [52,53], particularly to analyze antimicrobials residues in food of animal origin [54], antibiotics in food samples [55], clenbuterol residues [56], food allergens [57], and so forth. Other hyphenated techniques such as gas chromatography-mass spectrometry (GC-MS) or capillary electrophoresis-mass spectrometry (CE-MS) have also found interesting applications to analyze essential oils [58] or food contaminants [59].…”

Sheath Liquids in CE-MS: Role, Parameters, and Optimization

“…Focusing on interfacing-and coupling-related parameters, several review papers include extensive tables listing separation-and detection-relevant data such as BGE composition and also SL composition and flow rates [22][23][24][25][26][27][28][29][30][31][32]. Browsing through these tables, several findings regarding SL composition can be deducted.…”

“…Rarely, acetonitrile or ethanol is the basis of an SL, whereas there are several examples for mixtures of methanol or iso-propanol with acetonitrile as SL. A comprehensive picture displaying the variety of mixtures used as SL can be obtained from reviews on CE-MS [22][23][24][25][26][27][28][29][30][31][32].…”

Simultaneous determination of nitroaromatic compounds in water using capillary electrophoresis with amperometric detection on an electrode modified with a mesoporous nano‐structured carbon material

“…In recent years, CE has been developed as an effective analytical method in environmental areas due to its high-separation speed and efficiency, low-sample consumption and short analysis time [11]. A wide variety of detectors can be coupled with CE for the separation and detection of different analytes [12][13][14][15]. Among these detection methods, electrochemical detection (ED) offers great promise for CE due to its advantages of high sensitivity, low cost, miniaturization and high compatibility with micromachining technologies [16,17].…”