A chemiluminescence flow-based procedure for determination of carbaryl in natural waters exploiting multicommutation and enzymatic reaction
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منابع مشابه
A Chemiluminescence Flow-based Procedure for Determination of Carbaryl in Natural Waters Exploiting Multicommutation and Enzymatic Reaction
Um procedimento empregando detecção quiluminescente para determinação de carbaril em águas naturais utilizando acetilcolinesterase e colina oxidase é descrito. O módulo de análise projetado para implementar o processo de multicomutação controlado por microcomputador foi constituído por cinco válvulas solenóides, duas colunas com enzimas imobilizadas em esferas de vidro e cela de fluxo para dete...
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An automatic flow procedure based on multicommutation dedicated for the determination of glucose in animal blood serum using glucose oxidase with chemiluminescence detection is described. The flow manifold consisted of a set of three-way solenoid valves assembled to implement multicommutation. A microcomputer furnished with an electronic interface and software written in Quick BASIC 4.5 control...
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Nitrate determination in waters is generally carried out with cadmium filings and carcinogenic reagents or by reaction with phenolic compounds in highly concentrated sulfuric acid medium. In this work, it was developed a green analytical procedure for nitrate determination in natural waters based on direct spectrophotometric measurements in ultraviolet, using a flow-injection system with an ani...
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The work presented describes the development and evaluation of two flow-injection analysis (FIA) systems for the automated determination of carbaryl in spiked natural waters and commercial formulations. Samples are injected directly into the system where they are subjected to alkaline hydrolysis thus forming 1-naphthol. This product is readily oxidised at a glassy carbon electrode. The electroc...
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Neste trabalho é descrito um procedimento automático em fluxo, para a determinação de L-alanina em meio de síntese. O método é baseado na oxidação do aminoácido pela L-aminoacido oxidise, seguida da detecção do H 2 O 2 formado, pela reação de quimiluminescência com o luminol. Para condicionamento da amostra, como diluição e ajuste do pH, foi utilizada a estratégia da reamostragem. Pelo procedim...
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ژورنال
عنوان ژورنال: Journal of the Brazilian Chemical Society
سال: 2007
ISSN: 0103-5053
DOI: 10.1590/s0103-50532007000300004