Advanced method using microwaves and solid-phase microextraction coupled with gas chromatography-mass spectrometry for the determination of pyrethroid residues in strawberries

Journal of Chromatography. a
Astrid SanusiM Montury

Abstract

A microwave-assisted desorption method was developed and coupled with solid-phase microextraction and GC-MS for the analysis of pyrethroid residues in strawberries. In the first step, pyrethroid analytes were desorbed from the whole fruits in an aqueous acetonitrile solution at 50% under microwave assistance, so preventing these compounds to be captured with strong matrix effects by endogenous constituents. Then, the 100 microm poly(dimethylsiloxane)-coated fibre was exposed for 30 min in the obtained extracting solution. Calibration curves, realised from blank strawberries spiked at different concentrations with standards, showed a linear range between 1 microg/kg and 250 microg/kg with r2 > 0.992 and variation coefficients below 15%. Limits of detection and quantitation were found lower than 14 microg/kg and 40 microg/kg, respectively. Observed analysis results by using this method and relative to field incurred strawberry samples were also compared to those obtained by two accredited trading laboratories using traditional methods.

References

Sep 24, 1999·Food Additives and Contaminants·R HuM Montury
Feb 24, 2001·Journal of Chromatography. a·C W HenryI M Warner
Apr 20, 2001·Journal of Chromatography. a·A ColuméM Valcárcel
Aug 7, 2001·Journal of Chromatography. a·M FernándezS Girotti
Jul 27, 2002·Journal of Chromatography. a·J L Martínez VidalM Mateu-Sánchez

❮ Previous
Next ❯

Citations

Sep 2, 2006·Analytical and Bioanalytical Chemistry·Jacqueline M R Bélanger, J R Jocelyn Paré
Jun 2, 2007·Analytical and Bioanalytical Chemistry·Dimitra A Lambropoulou, Triantafyllos A Albanis
Jul 14, 2007·Analytical and Bioanalytical Chemistry·M Carmen Hernández-SorianoM Dolores Mingorance
Jan 29, 2008·Analytical and Bioanalytical Chemistry·José Juan Santana RodríguezCristina Mahugo Santana
Oct 25, 2008·Critical Reviews in Food Science and Nutrition·Angelika Beyer, Marek Biziuk
May 11, 2012·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·V C FernandesC Delerue-Matos
Feb 14, 2008·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Meekin ChaiAsha Lal
Apr 23, 2010·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Lina LuoJing Zhang
Jul 24, 2010·Journal of Chromatography. a·Saeed S AlbaseerK Mukkanti
Jun 24, 2009·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Yuan LiangHuwei Liu
Feb 28, 2009·Journal of Chromatography. a·V YusàM de la Guardia
Jul 7, 2007·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Jingyan YouDaqian Song
Jul 31, 2008·Journal of Separation Science·Diego García-RodríguezRafael Cela
Jun 15, 2010·Analytica Chimica Acta·Simone Machado GoulartMaria Eliana L R de Queiroz
Feb 26, 2010·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·Valérie GuilletMichel Montury

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.