Molecularly imprinted polymer-based potentiometric sensor for degradation product of chemical warfare agents: Part I. Methylphosphonic acid

摘要: Abstract A biomimetic potentiometric sensor for the specific recognition of methylphosphonic acid (MPA), degradation product nerve agents sarin, soman, VX, etc., was designed. This involves preparation MPA imprinted polymer particles and removal template by soxhlet extraction. Subsequently, leached MIP were dispersed in 2-nitrophenyloctyl ether (plasticizer) embedded polyvinyl chloride matrix. The responds to concentration range 5 × 10−8 1 × 10−4 1 × 10−3 1 × 10−1 M with a detection limit 5 × 10−8 M. selectivity has been tested respect chemical analogues such as phosphoric acid, sodium dihydrogen phosphate, organophosphorous pesticide triazine herbicides. utility field monitoring spiked ground water.