Determination of acrylamide in potato-based foods using headspace solid-phase microextraction based on nanostructured polypyrrole fiber coupled with ion mobility spectrometry: a heat treatment study

2017 ◽  
Vol 9 (35) ◽  
pp. 5127-5134 ◽  
Author(s):  
Elham Pourmand ◽  
Elham Ghaemi ◽  
Naader Alizadeh
Keyword(s):  
Heat Treatment ◽  
Ion Mobility Spectrometry ◽  
Ion Mobility ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Food Samples ◽  
Headspace Solid Phase Microextraction ◽  
Heat Treated ◽  
Detection And Quantification

In this work, headspace solid-phase microextraction (HS-SPME) coupled with ion mobility spectrometry (IMS) has been used as a simple and convenient method for acrylamide detection and quantification in heat treated food samples.

scholarly journals Determination of multi-class herbicides in soil by liquid-solid extraction coupled with headspace solid phase microextraction method

2016 ◽  
Vol 81 (8) ◽  
pp. 923-934 ◽  
Author(s):  
Rada Djurovic-Pejcev ◽  
Tijana Djordjevic ◽  
Vojislava Bursic
Keyword(s):  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Soil Samples ◽  
Gas Chromatography Mass Spectrometry ◽  
Optimum Number ◽  
Polydimethyl Siloxane ◽  
Headspace Solid Phase Microextraction ◽  
Relative Standard ◽  
Detection And Quantification

A method is described for simultaneous determination of five herbicides (metribuzin, acetochlor, clomazone, oxyfluorfen and dimethenamid) belonging to different pesticides groups in soil samples. Developed headspace solid phase microextraction method (HS-SPME) in combination with liquid-solid sample preparation (LS) was optimized and applied in the analysis of some agricultural samples. Optimization of microextraction conditions, such as temperature, extraction time and sodium chloride (NaCl) content was perfor-med using 100 ?m polydimethyl-siloxane (PDMS) fiber. The extraction effi-ciencies of methanol, methanol:acetone=1:1 and methanol:acetone:hexane= =2:2:1 and the optimum number of extraction steps during the sample prepa-ration, were tested, as well. Gas chromatography-mass spectrometry (GC-MS) was used for detection and quantification, obtaining relative standard deviation (RSD) below 13%, and recovery values higher than 83% for multiple analyses of soil samples fortified at 30 ?g kg-1 of each herbicide. Limits of detection (LOD) were less than 1.2 ?g kg-1 for all the studied herbicides.

Simultaneous determination of sertraline, imipramine and alprazolam in human plasma samples using headspace solid phase microextraction based on a nanostructured polypyrrole fiber coupled to ion mobility spectrometry

2020 ◽  
Vol 12 (7) ◽  
pp. 930-937 ◽  
Author(s):  
Erfan Barati ◽  
Naader Alizadeh
Keyword(s):  
Simultaneous Determination ◽  
Human Plasma ◽  
Ion Mobility Spectrometry ◽  
Ion Mobility ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Electrochemical Process ◽  
Plasma Samples ◽  
Spme Fiber

PPy-DBS was synthesized by an electrochemical process and used as a HS-SPME fiber for determination of antidepressants in plasma without derivatization steps.

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