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Acephate is the common name for O,S-dimethyl acetylphosphoramidothioate. It is a colourless solid with melting point of 82ºC-89ºC, vapour pressure of 0.226 mPa at 24ºC, density of 1.3 g litre-1 and with a solubility in water at room temperature is 650 g litre-1 Main Research: Yeoh Chee Beng 

Monocrotophos is the common name for dimethyl(E)-1-methyl-2-(methylcarbomoyl) vinyl phosphate. It is a colourless, hygroscopic crystal with a melting point of 54°C-55°C, a boiling point of 125°C/0.0005 mmHg, vapour pressure of 0.29 mPa (20°C), density of 1.33 g ml-1 (20°C) and solubility in water at 20°C is 1 kg kg-1.  Main Research: Yeoh Chee Beng 

This test method prescribes the requirements for the determination of methamidophos in oil matrix. Main Research: Yeoh Chee Beng 

This test method prescribes the requirements for the determination of paraquat residue in edible oil. Main Research: Dr Ainie Kuntom 

This test method prescribes the requirements for the determination of glyphosate residue in oil matrix. Main Research: Dr Ainie Kuntom