Simultaneous determination of eight pesticide residues in coconut using MSPD and GC/MS

Silva, Maria Geovânia Dantas; Aquino, Adriano; Dórea, Haroldo Silveira; Navickiene, Sandro

doi:10.1016/j.talanta.2008.04.018

Cited by 67 publications

(28 citation statements)

References 19 publications

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“…These are based on spectrophotometry, [7][8][9] high-performance liquid chromatography (HPLC) and mass spectrometry (MS), [10][11][12][13][14] gas chromatography (GC) with thermionic specific 15 and GC/MS, [16][17][18] capillary electrophoresis with electrospray-MS, 19 micellar electrokinetic chromatography, 20 thin-layer chromatography, 21 polarography, 22 enzyme linked immunosorbent assay, 23 fluorescence, 24 sequential injection analysis with fluorescence, 25 flow injection analysis with fluorescence 26,27 and roomtemperature phosphorescence. 28 In recent years, the developments of new oxidant reagents for the chemiluminescence (CL) reaction based on analytical approaches have been the subject of considerable interest.…”

Section: Introductionmentioning

confidence: 99%

Flow-Injection Determination of Thiabendazole Fungicide in Water Samples Using a Diperiodatocuprate(III)-Sulfuric Acid-Chemiluminescence System

et al. 2016

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A limited number of FI-CL methods have been reported based on the use of the Cu(III) complex in aqueous phosphoric acid and sulfuric acid solutions for the determination of ofloxacin, levofloxacin and enrofloxacin in pharmaceutical preparations, urine and veterinary preparations with detection limits (S/N = 3) 2016 © The Japan Society for Analytical Chemistry † To whom correspondence should be addressed. E-mail: yaqoob2001@hotmail.com Chemiluminescence (CL) with a flow-injection method is reported for the determination of thiabendazole (TBZ) fungicide based on its enhancement effect on diperiodatocuprate(III) (DPC)-sulfuric acid-CL system. The calibration graph was linear in the concentration range of 1 -2000 μg L -1 (R 2 = 0.9999, n = 8) with a limit of detection (S/N = 3) of 0.3 μg L -1 . The injection throughput was 160 h -1 with relative standard deviations (RSD, n = 4) of 1.1 -2.9% in the concentration range studied. The experimental variables e.g., reagents concentrations, flow rates, sample volume, and PMT voltage were optimized, and the potential interferences were investigated individually. The method was successfully applied to the determination of TBZ in water samples showing good agreement and recovery in the range of 92 ± 2.2 -108 ± 3% (n = 3) using dispersive liquid-liquid micro-extraction (DLLME). The possible CL reaction mechanism for DPC-sulfuric acid-TBZ is also discussed.Keywords Flow injection analysis, DPC, chemiluminescence, thiabendazole, water samples

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Section: Introductionmentioning

confidence: 99%

Flow-Injection Determination of Thiabendazole Fungicide in Water Samples Using a Diperiodatocuprate(III)-Sulfuric Acid-Chemiluminescence System

et al. 2016

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“…The original research works devoted to OP pesticides analysis applying various chromatographic techniques: gas chromatography-mass spectrometry (Baugros et al, 2008;Chen & Huang, 2006;Cortés-Aguado et al, 2008;Cunha et al, 2009;Filho et al, 2010aFilho et al, , 2010bHassan et al, 2010;Kolberg et al, 2011;Lavagnini et al, 2011;Lesueur et al, 2008aLesueur et al, , 2008bLi et al, 2011b;Libin et al, 2006;López-Feria et al, 2009;Nguyen et al, 2008;Nguyen et al, 2010;Pang et al, 2006;Rodrigues et al, 2010;Silva et al, 2008;Sinha et al, 2006;Toledano et al, 2010;Wang et al, 2007;Wang et al, 2011;Wu et al, 2011;Yang et al, 2011), gas chromatographytandem mass spectrometry (Barco-Bonilla et al, 2010;Camino-Sánchez et al, 2008;Frenich et al, 2006;Fuentes et al, 2008Fuentes et al, , 2009García-Rodríguez et al, 2010;Lee et al, 2008;Qu et al, 2010;Walorczyk, 2008;Walorczyk & Gnusowski, 2009), gas chromatography-ion trap mass spectrometry (González-Rodríguez et al, 2008;Przybylski & Hommet, 2008), gas chromatography time-of-flight mass spectrometry (Hernández et al, 2010;Portolés et al, 2011), high performance liquid chromatography (Akkad et al, 2010;…”

Section: Chromatographic Methods For Op Pesticides Analysismentioning

confidence: 99%

Organophosphorus Pesticides Analysis

Stoytcheva¹,

Zlatev²

2011

Pesticides in the Modern World - Trends in Pesticides Analysis

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“…The pre-treatment usually is time-consuming, which includes extraction, purification, and enhancement of the analytes to reduce or eliminate possible interference to the accurate detection. Soxhlet extraction [21], accelerated solvent extraction (ASE) [16], supercritical fluid extraction (SFE) [17], solid phase extraction (SPE) [12,13], microwave-assisted extraction (MAE) [22], matrix solid phase disperse extraction (MSPDE) [19,23], and disperse solid phase extraction (DSPE, QuEChERS) [24][25][26] have been investigated for pesticides analysis. Gel permeation chromatography (GPC), as reported in bibliography [10,16,27,28], may be one of the best tech-niques for the analysis of multi-residue of pesticides in TCM, which separates lower molecular weight target pesticides from higher molecular weight chemical matrices, such as pigments.…”

Section: Introductionmentioning

confidence: 99%

Gel Permeation Chromatography Purification and Gas Chromatography-Mass Spectrometry Detection of Multi-Pesticide Residues in Traditional Chinese Medicine

Zhuang¹,

Gong²

2012

AJAC

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The measurement of 23 organochlorine, organophosphorus, and pyrethroid pesticides in typical traditional Chinese medicine (TCM), flos lonicerae, was made using gel permeation chromatography (GPC) purification and gas chromatography-mass spectrometry (GC-MS) detection. The pesticides were extracted with ultrasonic device and 5.0 mL mixture of ethyl acetate and cyclohexane (1:1, v/v). Coextractants from sample matrices which may have interfere to the qualitative and quantitative analysis, such as pigments, were removed using GPC purification. Simultaneous full scan and selective ion monitor (scan/SIM) mode for GC-MS was used for qualitative and quantitative analysis, which provided retention time and characteristic fragments ratio for each pesticide so as to positively identify each analyte. Relative standard deviations (RSDs) were within 7.7% (5.0 -22.5 µg/kg, n = 3). The recoveries of pesticide standards at the spiked concentration of 5.0 -22.5 µg/kg were between 87.1% and 110.9%. Limits of detection (LODs) for the analytes were 0.16 -3.2 µg/kg, which could meet the demand of routine analysis and TCM quality control.

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Simultaneous determination of eight pesticide residues in coconut using MSPD and GC/MS

Cited by 67 publications

References 19 publications

Flow-Injection Determination of Thiabendazole Fungicide in Water Samples Using a Diperiodatocuprate(III)-Sulfuric Acid-Chemiluminescence System

Flow-Injection Determination of Thiabendazole Fungicide in Water Samples Using a Diperiodatocuprate(III)-Sulfuric Acid-Chemiluminescence System

Organophosphorus Pesticides Analysis

Gel Permeation Chromatography Purification and Gas Chromatography-Mass Spectrometry Detection of Multi-Pesticide Residues in Traditional Chinese Medicine

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