1997
DOI: 10.1016/s0003-2670(97)00269-9
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Development of a highly sensitive enzyme-linked immunosorbent assay for atrazine Performance evaluation by flow injection immunoassay

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Cited by 90 publications
(79 citation statements)
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“…It has been reported from other laboratories [19][20][21][22] that, on a competitive ELISA, the time given to the immunoreagents to interact, may have a direct effect on the sensitivity of the immunoassay. For this reason, we varied the length of competitive step from 15 to 120 min for assessing the effect of incubation time on the assay performance (IC 50 , RLU max and RLU max /IC 50 ).…”
Section: Effect Of Incubation Timementioning
confidence: 99%
“…It has been reported from other laboratories [19][20][21][22] that, on a competitive ELISA, the time given to the immunoreagents to interact, may have a direct effect on the sensitivity of the immunoassay. For this reason, we varied the length of competitive step from 15 to 120 min for assessing the effect of incubation time on the assay performance (IC 50 , RLU max and RLU max /IC 50 ).…”
Section: Effect Of Incubation Timementioning
confidence: 99%
“…The pH of the sample matrix is one of the numerous factors that may affect the sensitivity of the assay detection system. In general, immunoassay is much more sensitive to acidic than to basic conditions; the maximum interaction is obtained at pH values between 7.5 and 9.0 [15]. A pH value beyond this range normally leads to a decrease in signal intensity.…”
Section: Immunobinding and Elution/ Regenerating Conditionsmentioning
confidence: 99%
“…Thus, Gasacon et al [15] described a flow-injection competitive immunoanalysis system using fluorimetric detection for the determination of atrazine in water samples. Antiatrazine antibody was immobilized based on oriented coupling onto the hydrazide-activated support (affigel-Hz) through chemical oxidation of the IgG carbohydrate moiety by periodate and covalent attachment of the generated carbonyl groups.…”
Section: Typical Examples Of Fiia For Pesticidesmentioning
confidence: 99%
“…Tanto o antígeno quanto o anticorpo podem ser marcados (conjugados) e as enzimas, atualmente, são os marcadores mais empregados em imunoensaios. Um dos grandes avanços em téc-nicas imunoanalíticas foi o desenvolvimento de enzima-imunoensaios como a denominada ELISA ("Enzyme Linked Immunosorbent Assays"), tendo enzima como meio alternativo de detecção 11 . A invenção da microscopia de força atômica (AFM) foi o primeiro exemplo de método de análise micrométrica e tornou possí-vel o emprego do cantilever em aplicações topográficas com alta resolução a dimensões reduzidas e não-topográficas (sensores com mecanismo de transdução mecânica) [12][13][14][15] .…”
Section: Introductionunclassified