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Document ID (ISN)65798
CIS number 95-2149
ISSN - Serial title 0793-4823 - Israel Journal of Occupational Health
Year 1995
Convention or series no.
Author(s) Ilan O., Rishpon J.
Title Biosensor applications for pesticide monitoring. Part 1. Combined electrochemical-microgravimetric biosensor and its application for pesticides detection and measurement
Bibliographic information 1995, Vol.1, No.1, p.57-74. Illus. 34 ref.
Abstract A combined electrochemical-microgravimetric system based on the use of enzymatic reactions (employing the acetyl cholinesterase enzyme) was able to measure an organophosphorus insecticide (DDVP or Dichlorvos) at concentrations much lower than the ACGIH-recommended Threshold Limit Value. For instance, good reproductibility was obtained at 50% enzyme inhibition, and the sensitivity for DDVP was as low as 1x10-5 mole/L in an aqueous phase. The enzyme electrode showed good regeneration behaviour, and the use of the combined method greatly improved the reliability of the measurements. The use of enzyme-electrode measurements in occupational hygiene measurements is discussed.
Descriptors (primary) occupational hygiene; insecticides; dichlorvos; enzyme inhibition
Descriptors (secondary)
Document type D - Periodical articles
Country / State or ProvinceIsrael
Subject(s) Toxic and dangerous substances
Broad subject area(s) Chemical safety
Browse category(ies) Agricultural chemicals
Blood diseases
Esters and salts