Organophosphorus Pesticides are among the most widely used class of pesticides thanks to their high efficacy against pests. They are also well known for their poisoning effects on human health as the over-exposure to organophosphorus pesticides may cause irreversible damage to the nervous system and have neurotoxic effects on developing organisms. They can be, in fact, absorbed by inhalation, ingestion, and dermal absorption.
These compounds also represent a concrete risk for the environment. There are concerns about their persistance in soil since they are widely used as fertilizers.
EPA Method 622 is a gas chromatographic (GC) method appliable to the determination of certain organophosphorus pesticides in industrial and municipal discharges as provided under 40 CFR 136.1
The following analysis offers a solution to increase peak resolution and enhance sensitivity, meeting methods’ requirements.

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