"Krej\u010D\u00ED, Jan" . . . . . "80-214-2180-0" . . "Fast detection of pesticide toxicity in field conditions is not fully solved yet. The new device for field measurement of organophosporous pesticides toxicity is described and first results are presented. The detection is based on the inhibition of acetylcholin esterase. The enzyme acetylcholin esterase is immobilized on a miniature electrochemical detector made by thick film technology forming together a biosensor. The dimensions of biosensor are 7,35 x 25,4 mm. The biosensor is placed in flow chamber which assures the reproducible hydrodynamic conditions near of active surface of the sensor. The analyzed sample is detected in the flow of supporting buffer. The biosensor detects the integral sample toxicity. It is destinated for detection of traces of pesticides in washout from leaves for direct measurment in rivers, ponds, vaste waters and drinking water sources. The preconcentration of sample is possible. The detection limit varies in wide range depending on the toxicity of pesticide. Fo"@en . . "P(GA102/00/0939), Z(MSM 262200022)" . . "373-382" . "Brno" . . "Brno" . "Vrba, Radim\u00EDr" . . . "Portable device for pesticide toxicity analysis" . "Jakubka, Lubo\u0161" . "10"^^ . "portable device, toxicity analysis, sensor"@en . "Sko\u010Ddopole, Michal" . . "H\u00E1ze, Ji\u0159\u00ED" . "658984" . . . . "Vysok\u00E9 u\u010Den\u00ED technick\u00E9 v Brn\u011B" . . "Fujcik, Luk\u00E1\u0161" . "P\u0159enosn\u00FD detektor pro anal\u00FDzu toxicity pesticid\u016F"@cs . "Portable device for pesticide toxicity analysis"@en . . . . "Fast detection of pesticide toxicity in field conditions is not fully solved yet. The new device for field measurement of organophosporous pesticides toxicity is described and first results are presented. The detection is based on the inhibition of acetylcholin esterase. The enzyme acetylcholin esterase is immobilized on a miniature electrochemical detector made by thick film technology forming together a biosensor. The dimensions of biosensor are 7,35 x 25,4 mm. The biosensor is placed in flow chamber which assures the reproducible hydrodynamic conditions near of active surface of the sensor. The analyzed sample is detected in the flow of supporting buffer. The biosensor detects the integral sample toxicity. It is destinated for detection of traces of pesticides in washout from leaves for direct measurment in rivers, ponds, vaste waters and drinking water sources. The preconcentration of sample is possible. The detection limit varies in wide range depending on the toxicity of pesticide. Fo" . "Rychl\u00E1 detekce toxicity pesticid\u016F v potravin\u00E1ch dosud nen\u00ED uspokojiv\u011B vy\u0159e\u0161ena. tento \u010Dl\u00E1nek prezentuje p\u0159\u00EDstroj, kter\u00FD je schopen tento probl\u00E9m vy\u0159e\u0161it."@cs . "[A0248247EBBF]" . "Portable device for pesticide toxicity analysis" . "2002-09-09+02:00"^^ . "6"^^ . . "P\u0159enosn\u00FD detektor pro anal\u00FDzu toxicity pesticid\u016F"@cs . "RIV/00216305:26220/02:PU29208" . "RIV/00216305:26220/02:PU29208!RIV06-GA0-26220___" . "26220" . . "ELECTRONIC DEVICES AND SYSTEMS 02 - Proceedings" . . "6"^^ . . . "Portable device for pesticide toxicity analysis"@en .