Headspace Solid Phase Microextraction Application for Pesticide Residues in Fruits and Vegetables

2016 ◽  
Vol 2 (2) ◽  
pp. 33-44
Author(s):  
Abookleesh L. Frage ◽  
Almrhag M. Omar ◽  
Zatout M. Massoud
Keyword(s):  
Pesticide Residues ◽  
Solid Phase Microextraction ◽  
Fruits And Vegetables ◽  
Solid Phase ◽  
Headspace Solid Phase Microextraction

Use of Carbon Nanotubes for the Analysis of Pesticide Residues in Fruits and Vegetables

2016 ◽  
Vol 99 (6) ◽  
pp. 1415-1425 ◽  
Author(s):  
Lukman Bola Abdulrauf ◽  
Guan Huat Tan
Keyword(s):  
Carbon Nanotubes ◽  
Pesticide Residues ◽  
Solid Phase Microextraction ◽  
Fruits And Vegetables ◽  
Solid Phase ◽  
Purification And Characterization ◽  
Characterization Methods ◽  
Matrix Solid Phase Dispersion ◽  
Phase Dispersion ◽  
Sorbent Materials

Abstract This review presents the application of carbon nanotubes as sorbent materials in the analysis of pesticide residues in fruits and vegetables. The advantages, limitations, and challenges of carbon nanotubes, with respect to their use in analytical chemistry, are presented. The efficiency of their application as extraction sorbent materials (in terms of LOD, LOQ, linearity, relative recovery, and RSD) in SPE, solid-phase microextraction, multi-plug filtration clean-up, matrix solid-phase dispersion, and the quick, easy, cheap, effective, rugged and safe method is reported. The synthesis, functionalization, purification, and characterization methods of carbon nanotubes are also discussed.

scholarly journals Headspace Solid Phase Microextraction Application for Pesticide Residues in Fruits and Vegetables

2016 ◽  
Vol 2 (2) ◽  
Author(s):  
Abookleesh L Frage , Almrhag M. Omar , Zatout M. Massoud
Keyword(s):  
Sample Preparation ◽  
Solid Phase Microextraction ◽  
Fruits And Vegetables ◽  
High Efficiency ◽  
Solid Phase ◽  
Accurate Determination ◽  
Chemical Properties ◽  
Extraction Process ◽  
Headspace Solid Phase Microextraction

Headspace solid phase microextraction, fundamental& principle with its application on the determination of various pesticides are reviewed in this article. Pesticides extraction as a sample preparation step prior to subsequent analysis is aimed to achieve a reliable and accurate determination of this contaminants residue in food. Fast and high efficiency extraction process with free solvent consumption and overall cost is achieved through headspace solid phase micro extraction. HSPME is an equilibrium process which depends on the physio-chemical properties of the analyte to be extracted. Sample preparation and extraction condition such as fiber coating, temperature, time etc, have a direct impact on the extraction efficiency and sensitivity of headspace technique.

scholarly journals Headspace Solid-Phase Microextraction of Pesticide Residues in Cannabis Samples

2006 ◽  
Vol 60 (12) ◽  
pp. 846-851 ◽  
Author(s):  
Yara Ilias ◽  
Serge Rudaz ◽  
Philippe Christen ◽  
Jean-Luc Veuthey
Keyword(s):  
Pesticide Residues ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Headspace Solid Phase Microextraction

scholarly journals Headspace solid phase microextraction in the analysis of pesticide residues: Kinetics and quantification prior to the attainment of partition equilibrium

2007 ◽  
Vol 72 (8-9) ◽  
pp. 879-887 ◽  
Author(s):  
Rada Djurovic ◽  
Mirjana Markovic ◽  
Dragan Markovic
Keyword(s):  
Gas Phase ◽  
Pesticide Residues ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Polymer Interfaces ◽  
Sorption Equilibrium ◽  
New Approach ◽  
Headspace Solid Phase Microextraction ◽  
Proportional Relationship ◽  
Partition Equilibrium

A new theoretical approach to the headspace/solid phase microextraction (HS/SPME) process is proposed and tested by the analysis of pesticide residues of water samples. The new approach focuses on mass transfer at the sample/gas phase and gas phase/SPME polymer interfaces. The presented model provides a directly proportional relationship between the amount of analytes sorbed by the SPME fiber and their initial concentrations in the sample. Also, the expression indicates that quantification is possible before partition equilibrium is attained. Experimental data for pesticides belonging to various classes of organic compounds were successfully interpreted by the developed model. Additionally, a linear dependence of the amount of pesticide sorbed on the initial analyte concentration in aqueous solution was obtained for a sampling time shorter than that required to reach sorption equilibrium.

Applications of Solid-Phase Microextraction for the Analysis of Pesticide Residues in Fruits and Vegetables: A Review

2012 ◽  
Vol 95 (5) ◽  
pp. 1272-1290 ◽  
Author(s):  
Lukman Bola Abdulra’uf ◽  
Mee Kin Chai ◽  
Guan Huat Tan
Keyword(s):  
Pesticide Residues ◽  
Solid Phase Microextraction ◽  
Fruits And Vegetables ◽  
Matrix Effects ◽  
Solid Phase ◽  
Sol Gel ◽  
Standard Addition ◽  
External Standard ◽  
Standard Calibration ◽  
Simple Extraction

Abstract This paper reviews the application of various modes of solid-phase microextraction (SPME) for the analysis of pesticide residues in fruits and vegetables. SPME is a simple extraction technique that eliminates the use of solvent, and it is applied for the analysis of both volatile and nonvolatile pesticides. SPME has been successfully coupled to both GC and LC. The coupling with GC has been straightforward and requires little modification of existing equipment, but interfacing with LC has proved challenging. The external standard calibration technique is widely used for quantification, while standard addition and internal or surrogate standards are mainly used to account for matrix effects. All parameters that affect the extraction of pesticide residues from fruits and vegetables, and therefore need to be optimized, are also reviewed. Details of the characteristics of analytical procedures and new trends in fiber production using sol-gel technology and molecularly imprinted polymers are discussed.

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