Development of a method for the determination of 9 currently used cotton pesticides by gas chromatography with electron capture detection

Zhang, Baohong; Pan, Xiaoping; Venne, Louise S.; Dunnum, Suzy; McMurry, Scott T.; Cobb, George P.; Anderson, Todd A.

doi:10.1016/j.talanta.2008.01.032

Cited by 77 publications

(21 citation statements)

References 5 publications

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“…Extracts were evaporated to dry off by rotary evaporation at 37C under reducing pressure. The final volume of concentrated extract was 1 mL with ethyl acetate and determined by gas chromatography with electron capture detection [7][8][9][10][11].…”

Section: Vegetable Fruit and Sediment Extraction And Clean-upmentioning

confidence: 99%

Residues of synthetic pyrethroid pesticides in vegetables, fruit, sediment and water from an intensive agricultural area (Fang district, Chiang Mai, Thailand)

Pakvilai¹,

Prapamontol²,

Thavornyutikarn³

et al. 2011

Sustainability Today

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This study was conducted in four intensive agricultural areas of the Fang district, Chiang Mai, northern Thailand. The objective of this study was to determine synthetic pyrethroid residues in vegetable, fruit, sediment, and surface water samples. Fruit and vegetables were purchased from local markets in the study areas. The vegetables in this study included cabbage, kale, water spinach, cauliflower, Chinese cabbage, Chinese mustard, yard long bean, cucumber, and sugar pea, while the fresh fruit included tangerine, guava, apple, dragon fruit, mango, sand pear, rose apple, lychee and grape. Sediment and surface water samples were collected from main streams of the four studied areas. The pyrethroid residues in vegetables, fruit, and sediment samples were extracted with dichloromethane in an ultrasonic bath and cleaned up on a graphite carbon cartridge. Liquid -liquid extraction technique was used to prepare pyrethroid compounds from surface water samples. The extracted samples were determined by using gas chromatography -electron capture detection (GC-ECD). Six synthetic pyrethriod pesticides in this study consist of lambda cyhalothrin, permethrin, cyfluthrin, cypermethrin, fenvalerate, and deltamethrin. Cypermethrin was found to be the highest detection percentage in surface water, vegetables, and fruit samples at 33.3, 75.8 and 95.3%, respectively. Meanwhile, permethrin was the highest detection percentage in sediment samples at 66%. However, lambda cyhalothrin was detected in sediment and surface water samples with the highest levels at 0.38 and 1.61 mg/kg, respectively. Deltamethrin was detected in vegetable samples with the highest level at 9.97 mg/kg and cypermethrin was detected in fruit samples with the highest level at 11.83 mg/kg. Furthermore, this study is an application of the developed method providing a high sensitivity with the limit of detection (LoD) of permethrin at 0.11 mg/kg, cyfluthrin at 0.11 mg/kg, fenvalerate at 0.22 mg/kg, lambda cyhalothrin at 0.26 mg/kg, cypermethrin at 0.51 mg/kg and deltamethrin at 0.65 mg/kg.

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Section: Vegetable Fruit and Sediment Extraction And Clean-upmentioning

confidence: 99%

Residues of synthetic pyrethroid pesticides in vegetables, fruit, sediment and water from an intensive agricultural area (Fang district, Chiang Mai, Thailand)

Pakvilai¹,

Prapamontol²,

Thavornyutikarn³

et al. 2011

Sustainability Today

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“…Thus, there was a requirement for precise and accurate methods to quantify its residue. The usual analytical methods employed to determine the amount of pendimethalin was based on gas chromatography techniques coupled to either a mass spectroscopy detector [6][7][8][9], a nitrogen phosphorous detector [10], or an electron capture detector [11,12]. Chemiluminescence (CL) was a high sensitive analytical technique that could be used in the determination of different compounds in a great variety of matrices depending on their participation in a CL reaction as precursors, catalysts, inhibitors, oxidants, etc.…”

Section: Introductionmentioning

confidence: 99%

One novel molecular imprinting nanowires chemiluminescence sensor: preparation and pendimethalin recognition

Yang

et al. 2014

Monatsh Chem

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One kind of pendimethalin-imprinted nanowires has been synthesized using nanoporous alumina membrane as the template. Because of the large surface-tovolume ratio of nanowires structure, the effective binding sites at the surface of the nanowires were sharply increased, and the recognition capability for template molecules was greatly improved. Taking the pendimethalin-imprinted nanowires as the recognition part, a novel chemiluminescence-molecular imprinting sensor was prepared. Its application in the detection of trace pendimethalin in foodstuff showed excellent performance of simple operation, high sensitivity, and good selectivity, through which the high throughput sample detection was realized with satisfied results.

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“…A number of papers have so far focused on determination of acetamiprid residues in cotton, vegetables, fruits, milk, honey and fine airborne particulate matter (Obananet al, 2002;Jansson et al, 2004;Ferrer et al, 2005;Fidente et al, 2005;Guzsvány et al, 2006a;Lesueur et al, 2008;Seccia et al, 2008;Zhang et al, 2008;Coscollà et al, 2009;Lee et al, 2009). In order to track the pesticide's metabolites in the environment and in different matrices, sensitive techniques for their monitoring should be developed.…”

Section: Introductionmentioning

confidence: 99%

Application of liquid chromatography with diode-array detector for determination of acetamiprid and 6-chloronicotinic acid residues in sweet cherry samples

et al. 2012

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A rapid and simple method for simultaneous determination of acetamiprid and its metabolite 6-chloronicotinic acid in sweet cherry samples has been developed. This residue analysis method is based on the reversed phase separation on C 18 column with gradient elution. Analytes' determination and quantification were performed by high performance liquid chromatography (HPLC) with diode-array detector and chromatograms were extracted at 230 nm. Extraction efficiency experiments demonstrated the ability of this method to extract neonicotinoids from sweet cherry samples. These insecticides were extracted with a mixture of acetonitril/0.1N ammonium-chloride (8/2, v/v). The average recoveries of acetamiprid and 6-chlornicotinic acid from sweet cherry samples were in the range of 95-101% and 73-83%, respectively, with the associated relative standard deviations (RSDs) <5%. Expanded measurement uncertainties for the analyzed compounds were 2.7 and 3.01%. The limit of quantification (LOQ) was 10 µg/kg and 30 µg/kg for acetamiprid and 6-chloronicotinic acid, respectively. Thus, the developed HPLC/DAD method can be considered a useful tool for sensitive and rapid determination of acetamiprid and 6-chloronicotinic acid. Hence, the method may find further application in the analysis of real sweet cherry samples contaminated with these insecticides at a ppb level.

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Development of a method for the determination of 9 currently used cotton pesticides by gas chromatography with electron capture detection

Cited by 77 publications

References 5 publications

Residues of synthetic pyrethroid pesticides in vegetables, fruit, sediment and water from an intensive agricultural area (Fang district, Chiang Mai, Thailand)

Residues of synthetic pyrethroid pesticides in vegetables, fruit, sediment and water from an intensive agricultural area (Fang district, Chiang Mai, Thailand)

One novel molecular imprinting nanowires chemiluminescence sensor: preparation and pendimethalin recognition

Application of liquid chromatography with diode-array detector for determination of acetamiprid and 6-chloronicotinic acid residues in sweet cherry samples

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