Determination of organophosphorus pesticides using membrane-assisted solvent extraction combined with large volume injection–gas chromatography–mass spectrometric detection

Schellin, Manuela; Hauser, Barbara; Popp, Peter

doi:10.1016/j.chroma.2004.04.006

Cited by 102 publications

(25 citation statements)

References 30 publications

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“…During the past few decades, modern sample preparation methods such as solid-phase extraction (SPE) [1,2], solidphase microextraction (SPME) [3,4], matrix solid-phase dispersion (MSPD) [5,6], membrane-assisted solvent extraction (MASE) [7,8], microporous polypropylene hollow fiber (HF) membranes [9,10] and stir-bar sorptive extraction (SBSE) [11,12] have been developed and improved to overcome drawbacks of the classical liquidliquid extraction methods. SPME is a powerful, simple, fast and solvent-free extraction method, which solves a number of problems confronting the analyst during sampling and introducing the sample into analytical instruments [13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Inside-Needle Extraction Method Based on Molecularly Imprinted Polymer for Solid-Phase Dynamic Extraction and Preconcentration of Triazine Herbicides Followed by GC–FID Determination

et al. 2012

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An inside-needle extraction method was developed through thermal polymerization of atrazinemolecularly imprinted polymer (MIP) on the internal surface of a stainless steel hollow needle, which was oxidized and silylated. The fabricated coating (MIP layer) for the needle was durable and showed very good chemical and thermal stability. It could be mounted on a glass syringe and be directly coupled with gas chromatographic (GC) systems. The parameters being effective on the coating and extraction processes, namely nature of oxidizing agent, silylation time, nature and amount of porogen, template-to-MIP components ratio, polymerization time and temperature, sample volume, flow rate, pH and ionic strength of the sample were investigated and optimized. The extraction needle showed high selectivity as well as a great extraction capacity for triazines. The extraction of atrazine, simazine, cyanazine, ametryn, prometryn and terbutryn using the fabricated extraction needle and followed by GC analysis resulted in detection limits of 2.6, 21, 24, 32, 38 and 42 ng mL -1 , respectively. The fabricated needle proved to be applicable to the analysis of real samples by comparing the results obtained for non-spiked and spiked samples of grape juice, tap water and groundwater.

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Section: Introductionmentioning

confidence: 99%

Inside-Needle Extraction Method Based on Molecularly Imprinted Polymer for Solid-Phase Dynamic Extraction and Preconcentration of Triazine Herbicides Followed by GC–FID Determination

et al. 2012

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“…Acceptable recoveries for nearly all pesticides were achieved with good repeatability. Eight OPPs pesticides in aqueous samples were extracted by means of MASE (Schellin, Hauser, & Popp, 2004). The technique was fully automated and successfully combinable with large volume extraction and GC/ MS.…”

Section: Mass Spectrometry Detector (Msd)mentioning

confidence: 99%

Multi-residue detection of pesticides in juice and fruit wine: A review of extraction and detection methods

Jin

Xie

Guo

et al. 2012

Food Research International

103

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“…Sample preparation is the major step in the pesticide residue analysis, however it is also the most difficult and time-consuming step. Up to date, trace analysis of OPPs in water is usually performed by gas chromatography (GC) with Nitrogen phosphorus detection (NPD), flame photometric detection (FPD), mass spectrometry (MS), or electron capture detection (ECD) combined with a sample pretreatment method such as liquid-liquid extraction (LLE) (Okumura and Nishikawa 1995;van der Hoff and van Zoonen 1999;Tahboub, Zaater, and Al-Talla 2005), solid phase extraction (SPE) (Tahboub et al 2005;Ballesteros and Parrado2004;Wang and Du 2010), solid phase microextraction (SPME) (Yao et al 2001;Lambropoulou et al 2004), liquid phase microextraction (LPME) (Jin and Yuan 2005;Khalili-Zanjani et al 2008), single-drop microextraction (SDME) (Lambropoulou et al 2004;Ahmadi et al 2006), dispersive liquid-liquid microextraction (DLLME) (Berijani et al 2006), membrane-assisted solvent extraction (MASE) (Schellin, Hauser, and Popp 2004), ultrasound-assisted emulsification microextraction (USAEME) (Jia et al 2010), and in-syringe USAEME (Su and Jen 2010). Solid-phase disk extraction (SPDE) is another form of SPE.…”

Section: Introductionmentioning

confidence: 99%

Determination of Trace Organophosphorus Pesticides in Water Samples by Solid Phase Disk Extraction and Gas Chromatography-Thermionic Specific Detector

Sun

Guo

et al. 2013

Analytical Letters

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A simple, rapid, sensitive, and high-throughput method based on solid-phase disk extraction (SPDE) and a gas chromatography-thermionic specific detector (GC-TSD) is described for the determination of organophosphorus pesticides (OPPs) in water samples. The proposed SPDE sample pretreatment method was initially optimized and the optimum experimental conditions found were 500 mL water sample (pH 2.5-7.0) extracted and enriched by a C18 (octadecyl) solid phase extraction disk at flow rate of 5 to 50 mL/min and eluted by 5 mL of acetone and 3 Â 5 mL methylene chloride. The linearity of the method ranged from 0.020 to 1.00 lg/L for dimethoate, methyl parathion, and malathion, with correlation coefficients ranging between 0.9976 and 0.9992. The concentration factors for OPPs were between 498 and 554. The limits of detection were in the ng/L level, ranging between 2.5 and 4 ng/L. The relative recoveries of spiked 3 OPPs (dimethoate, methyl parathion, and malathion) with external calibration method at different concentration levels in pure, fresh water, and sea water samples were 102-112%, 94-109%, and 99-104%, respectively, and with relative standard deviations of 4.1-6.2%, 3.4-4.6%, and 3.5-5.2% (n ¼ 3), respectively. It is concluded that this method can be successfully applied for the determination of OPPs in pure water, fresh water, and sea water samples.

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Determination of organophosphorus pesticides using membrane-assisted solvent extraction combined with large volume injection–gas chromatography–mass spectrometric detection

Cited by 102 publications

References 30 publications

Inside-Needle Extraction Method Based on Molecularly Imprinted Polymer for Solid-Phase Dynamic Extraction and Preconcentration of Triazine Herbicides Followed by GC–FID Determination

Inside-Needle Extraction Method Based on Molecularly Imprinted Polymer for Solid-Phase Dynamic Extraction and Preconcentration of Triazine Herbicides Followed by GC–FID Determination

Multi-residue detection of pesticides in juice and fruit wine: A review of extraction and detection methods

Determination of Trace Organophosphorus Pesticides in Water Samples by Solid Phase Disk Extraction and Gas Chromatography-Thermionic Specific Detector

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