Simultaneous determination of various pesticides in fruit juices by HPLC-DAD

Topuz, Sibel; Özhan, Gül; Alpertunga, Büket

doi:10.1016/j.foodcont.2003.11.012

Cited by 91 publications

(35 citation statements)

References 16 publications

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“…However, some studies used only SPE without liquid-liquid partitioning because sample extract was diluted during the sample preparation so that the SPE was capable of cleaning up the extract [18][19] . In this study the introduction of saline water-acetonitrile partitioning resulted in good recovery and higher sensitivities.…”

Section: Resultsmentioning

confidence: 99%

Development and Validation of Analytical Methods for Picoxystrobin Determination in Agricultural Products by GC-ECD and GC-MS

Ah¹,

Lee²,

Park³

et al. 2012

Journal of Food Hygiene and Safety

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-A simple and sensitive analytical method was developed using gas chromatography with electron capture detector (GC-ECD) and gas chromatography-mass spectrometry (GC-MS) for determination of Picoxystrobin in agricultural products (apple, hulled rice, mushroom, pepper, soybean, and mandarin). Picoxystrobin residues were extracted with acetonitrile, partitioned with saline water, and then they were cleaned up on a florisil solid-phase extraction (SPE) cartridge to obtain an extract suitable for analysis by GC-ECD and GC-MS. The method was validated using 6 agricultural product samples spiked with Picoxystrobin at different concentration levels (0.02, 0.05 and 0.5 mg/L). Average recoveries of Picoxystrobin (using each concentration three replicates) ranged 64.0~98.3% with relative standard deviations less than 10%, calibration solutions concentration in the range 0.1~5 mg/L, and limit of detection (LOD) and limit of quantification (LOQ) were 0.005 and 0.02 mg/L, respectively. The result showed that the developed analytical method is suitable for Picoxystrobin determination in agricultural products.

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Section: Resultsmentioning

confidence: 99%

Development and Validation of Analytical Methods for Picoxystrobin Determination in Agricultural Products by GC-ECD and GC-MS

Ah¹,

Lee²,

Park³

et al. 2012

Journal of Food Hygiene and Safety

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“…Entre estas técnicas pode-se destacar: o particionamento de solventes (extração líquido-líquido), extração sólido-líquido (Solid Liquid Extration -SLE) [96,[100][101][102][103] , extração assistida por micro-ondas (Microwave Assisted Extraction -MAE) [104][105][106] , extração em fase sólida (Solid-Phase Extraction -SPE) [106][107][108][109][110][111] , microextração em fase sólida (Solid-Phase Microextraction -SPME) [104,[112][113][114] , dispersão da matriz em fase sólida (Matrix Solid-Phase tro importante que deve ser considerado, pois, dependendo do tipo de detector a ser utilizado, os LMR estabelecidos podem não ser atingidos.…”

Section: Dois Métodos Quechers Modificadosunclassified

Morango: uma preocupação alimentar, ambiental e sanitária, monitorado por cromatografia líquida moderna

Oshita¹,

Jardim²

2012

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ResumoA presente revisão tem como objetivo reunir em um único manuscrito informações desde a produção agrícola do morango até os aspectos negativos que podem influenciar e atingir o meio ambiente ou gerarem preocupações com a saúde dos trabalhadores rurais e consumidores que tenham contato direto com o meio ambiente ou que consomem o morango in natura. O morango é uma das culturas que lideram, desde o ano de 2002, o ranking dos alimentos mais contaminados por resíduos de agrotóxicos no Brasil. A cromatografia líquida moderna é uma das técnicas analíticas mais desenvolvidas e empregadas para determinação de resíduos de agrotóxicos em alimentos. Palavras-chaveCLAE; agrotóxicos; morango. Strawberry: food, environmental and sanitary concerns, monitored by modern liquid chromatography AbstractThis review aims to present information in a single manuscript initiating with the agricultural production of strawberries and concluding with the negative aspects that influence environment or generate concerns about the health of farm workers and consumers who have direct contact with the environment or, even the consumers of fresh strawberries. Strawberry crops are those that leads, since the year 2002, the ranking of the foods most contaminated with pesticide residues in Brazil. Modern liquid chromatography is one of the most developed analytical techniques and is thus often employed for the determination of pesticide residues in foods.

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“…Detectors such as ECD, FID, NPD and MS were used widely (see (Cabras et al, 1991) Trifluralin, ethalfluralin, pendimethalin Vitali et al, 1994) nitralin HPLC-UV 6.9 ng (Ruiz de Erenchun et al, 1997) Trifluralin HPLC/ UV 1μg/kg (Topuz et al, 2005) Trifluralin HPLC/ UV 0.025mg/kg (Huang et al, 2004) Trifluralin ELISA 0.1-100ng/mL (Gyöngyvér et al, 2000) Trifluralin Immunosensor 2×10 -17 -3×10 -5 ng/mL (Szendr et al, 2003) …”

Section: Detectionmentioning

confidence: 99%