Development and validation of a fast high-performance liquid chromatography method for the determination of microencapsulated pyrethroid pesticides

Rivas, Isabel Patricia; Gil-Alegre, María Esther; Torres-Suárez, Ana Isabel

doi:10.1016/j.aca.2005.10.042

Cited by 23 publications

(13 citation statements)

References 25 publications

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“…Molekula gehienen analisirako (ez-hegazkorrak), teknika analitiko erabilienak dira ultramore-ikusgai espektrofotometria (Ultraviolet-visible spectrophotometry, UV-Vis) [26,27] eta likido-kromatografia (Liquid chromatography, LC) [27,28] diodo ilara detektorearekin (Diode array detector, DAD) edo masa-espektrometria (Mass spectrometry, MS) [28][29][30] bidez akoplatutako teknikak. Orokorrean, teknika analitiko horiek lagin tratamendu moduan, aldez aurreko diluzio-fase bat soilik behar izaten dute.…”

Section: Askapenaren Ikerketaunclassified

Bioziden mikrokapsulazioa eta ingurumen-osasuna

Alonso

Corral

2017

EKAIA

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Laburpena: XXI. mendeko erronken artean, ingurumen-osasunean kalte egin dezaketen arazoei aurre egiteko metodo alternatiboen bilaketa aurkitzen da. Arlo honetan, mikrokapsularatzearen abantaila anitzek arazo horiei aurre egiteko baliozko aukera bat erakusten dute. Abantaila garrantzitsu horien artean aurkitzen dira ingurumenean eta ugaztunetan toxikotasuna murriztea, langileen zein bezeroen manipulazioan segurtasuna hobetzea eta uretan disolbagarritasun baxua duten konposatuen sintesia uretan ahalbidetzea. Horrela, ura disolbatzaile gisa erabiliz, disolbatzaile organiko toxikoen eta garestien erabilpena ekiditen da.Gure ikerkuntza-taldeak intsektuen izurriteen kontroleko amuen parte izango diren produktu mikrokapsularatuak sintetizatu ditu. Mikrokapsularatutako produktu horiek biozida eta bioerakarle naturalak dituzte, ingurumenarentzat zein gizakiarentzat errespetagarriagoa den produktua lortzeko asmoz. Gainera, bioerakarleen erabilpenaren ondorioz, amaierako produktu komertziala selektiboagoa eta eraginkorragoa izango da espezie zehatz batzuen aurka.Mikrokapsularatutako biozidak sinergisten familiako pestizidak dira. Adibide ezagun bat piperonilo butoxidoa da. Biozidek intsektiziden, (piretroideak, nikotinoideak, karbamatoak...), fungiziden (tebukonazola) zein pestiziden gaitasuna areagotzeko gaitasuna dute. Bioerakarle naturalak, berriz, alkoholen eta terpenoen familiako konposatu hegazkorrak dira. Mikrokapsularatze-metodo arinak eta errendimendu estekiometriko altukoak garatu izan dira polimeroekin, gomekin eta karbohidratoekin erabiltzeko, hala nola ihinztadura bidezko lehorketa, gelifikazio ionikoa eta inklusio-konplexuen eraketako mikrokapsularatze-metodoak. Era berean, konposatu aktiboen kontzentrazioak determinatzeko, metodologia analitiko ezberdinak ikertu dira eta buruguneko gas-kromatografia / masa-espektrometria detektoreko (Headspace Gas Chromatography-Mass Spectrometry, HS-GC/MS) teknika erabiliz giro-tenperaturan eta hezetasunean konposatu hegazkorren askapenaren monitorizazioa ikertu da.Mikrokapsularatze-prozesuan lortutako aurrerapenek mugarri esanguratsu bat adierazten dute ingurumen-osasunean dauden ingurumen-arazoak ebazteko.Hitz gakoak: ingurumen-osasuna, mikrokapsularatzea, askapena.EKAIA 32.indd 67 EKAIA 32.indd 67

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Section: Askapenaren Ikerketaunclassified

Bioziden mikrokapsulazioa eta ingurumen-osasuna

Alonso

Corral

2017

EKAIA

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“…Recoveries ranged between 93.8 and 99.5% and the LODs were between 0.5-1 lg/kg. Other complex samples which have been recently analyzed by HPLC-UV or DAD are soils [10,17,38,49,67], vegetables [19,40,41,69], fruits [49,56], or grains [21,37,49].…”

Section: Hplc Analysis Of Pesticidesmentioning

confidence: 99%

Pesticides analysis by liquid chromatography and capillary electrophoresis

Ravelo‐Pérez

Hernández-Borges

Rodríguez‐Delgado³

2006

J of Separation Science

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Nowadays, a wide range of pesticides are used in agricultural production, and their monitoring in samples of environmental and alimentary interest is of extreme importance to ensure, among others, the safety of consumption of foods. The aim of this work is to provide updated information about the major developments in CE and HPLC in pesticide analysis, covering relevant publications between 2004 and early 2006. The use of different sample pretreatment steps to provide a suitable extraction of these compounds from the different matrices as well as to increase the sensitivity of the determination is also discussed.

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“…Therefore, it is needed to develop a rapid, sensitive and efficient analytical method for monitoring residue levels of pyrethroids in food, especially in green tea. There are many methods for the detection of pyrethroid residues such as highperformance liquid chromatography (HPLC) and gas chromatography with electron capture detector (GC/ECD) (Boccelli, Capri, & Delre, 1993;Ding, White, Muralidhara, Bruckner, & Bartlett, 2004;Esteve-Turrillas, Pastor, & Guardia, 2005;Hengel, Mourer, & Shibamoto, 1997;Leng & Gries, 2005;Rivas, Gil-Alegre, & Torres-Suarez, 2006;Wells, Riemer, & Wellsknecht, 1994). In spite of good sensitivity, these methods normally involve sample extraction followed by multistep clean up and concentration steps.…”

Section: Introductionmentioning

confidence: 99%

Development of general immunoassays for pyrethroids: a new approach for hapten synthesis using pyrethroid metabolite analogue and application to food samples

Lü

Zhang

et al. 2010

Food and Agricultural Immunology

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Development of general immunoassays for pyrethroids: a new approach for hapten synthesis using pyrethroid metabolite analogue and application to food samples, Food and Agricultural Immunology, 21:1, 27-45, This study describes a general and broad immunochemical approach for the detection of pyrethroids. A new approach was used for the hapten preparation in which the 3-carbon spacer arm was attached to the pyrethroids metabolite analogue, 3-phenoxybenzoic acid. Polyclonal antibodies were generated. Enzymelinked immunosorbent assay was optimised and developed for the detection of pyrethroids. It was showed that the concentration of analyte giving 50% inhibition of colour development were 20 mg L (1 for deltamethrin, 16 mg L (1 for cypermethrin, 11 mg L (1 for fluvalinate, 15 mg L (1 for fenvalerate and 20 mg L (1 for fenpropathrin, respectively. Screening for this class of pyrethroids in Brassica campestris L., peach and green tea was accomplished by simple and rapid extraction methods. The high precision was obtained with good recoveries. Good correlations between immunoassay and gas chromatography/electron capture detector data were obtained for incurred residues of deltamethrin extracts of green tea sample.

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Development and validation of a fast high-performance liquid chromatography method for the determination of microencapsulated pyrethroid pesticides

Cited by 23 publications

References 25 publications

Bioziden mikrokapsulazioa eta ingurumen-osasuna

Bioziden mikrokapsulazioa eta ingurumen-osasuna

Pesticides analysis by liquid chromatography and capillary electrophoresis

Development of general immunoassays for pyrethroids: a new approach for hapten synthesis using pyrethroid metabolite analogue and application to food samples

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