2004
DOI: 10.1016/j.aca.2004.05.030
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Determination of organophosphate and carbamate pesticides based on enzyme inhibition using a pH-sensitive fluorescence probe

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Cited by 97 publications
(47 citation statements)
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“…Em geral, os carbamatos são inibidores da enzima acetilcolinesterase 70 . Desta maneira, vários trabalhos relatam o uso de eletrodos modificados com enzimas na determinação destes compostos em amostras de alimentos 58,71,72 .…”
Section: Pesticidas Carbamatosunclassified
“…Em geral, os carbamatos são inibidores da enzima acetilcolinesterase 70 . Desta maneira, vários trabalhos relatam o uso de eletrodos modificados com enzimas na determinação destes compostos em amostras de alimentos 58,71,72 .…”
Section: Pesticidas Carbamatosunclassified
“…http Their extensive usage can pose as a potential toxicant for human beings through the ingestion of treated food sources like vegetables, fruits, and through water bodies [2]. Organophosphates (OP) are commonly found in herbicides, insecticides, and warfare agents [3].…”
Section: Introductionmentioning
confidence: 99%
“…It was, however, unable to detect the pesticides malathion or parathion, even at mm concentrations, indicating some selectivity of the sensor for different organophosphorus compounds. A sensor for OP pesticides conceived by Jin et al [12] also relied on the inhibition of AChE in the presence of a pH-dependent fluorescent dye. In this system the proton resulting from the hydrolysis of the acetylcholine resulted in an increase of the fluorescence intensity of 2-butyl-6-(4-methylpiperazin-1-yl)benzoScheme 1. a) Inhibition scheme of acetylcholinesterase (AChE) by or-A C H T U N G T R E N N U N G ganophosphates [1] and reactivation by an oxime and b) structure of the enzyme reactivating agent Pralidoxime chloride (pyridine-2-aldoxime methyl chloride, 2-PAM).…”
Section: Enzyme-based Sensorsmentioning
confidence: 99%