Publication detail

Portable device for pesticide toxicity analysis

KREJČÍ, J., VRBA, R., HÁZE, J., FUJCIK, L., SKOČDOPOLE, M., JAKUBKA, L.

Original Title

Portable device for pesticide toxicity analysis

English Title

Portable device for pesticide toxicity analysis

Type

conference paper

Language

en

Original Abstract

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. For example meviphos the detection limit is 8 . 10-6 mg/ml without preconcentration.

English abstract

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. For example meviphos the detection limit is 8 . 10-6 mg/ml without preconcentration.

RIV year

2002

Released

01.01.2002

Publisher

Vysoké učení technické v Brně

Location

Brno

ISBN

80-214-2180-0

Book

ELECTRONIC DEVICES AND SYSTEMS 02 - Proceedings

Edition number

1.

Pages from

373

Pages to

382

Pages count

10

Documents

BibTex


@inproceedings{BUT4944,
  author="Jan {Krejčí} and Radimír {Vrba} and Jiří {Háze} and Lukáš {Fujcik} and Michal {Skočdopole} and Luboš {Jakubka}",
  title="Portable device for pesticide toxicity analysis",
  annote="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. For example meviphos the detection limit is 8 . 10-6 mg/ml without preconcentration. 
",
  address="Vysoké učení technické v Brně",
  booktitle="ELECTRONIC DEVICES AND SYSTEMS 02 - Proceedings",
  chapter="4944",
  institution="Vysoké učení technické v Brně",
  year="2002",
  month="january",
  pages="373",
  publisher="Vysoké učení technické v Brně",
  type="conference paper"
}