1. Spectrophotometric methods for

* estimation of glycollic acid

* estimation of 3,5,6-trichloropyridin-2-ol which is an intermediate in Chlorpyrifos production.

* estimation of trichloroacetyl chloride.

2. Gas-liquid chromatographic methods for

* estimation of various constituents of the Chlorpyrifos reaction mass.

* estimation of Hexachlorocyclopentadiene (HCCP) in the manufacture process of Endosulfan

* estimation of acetyl chloride

3. HPLC methods for estimation of Glyphosate, Methyl dithioic acid (MDTA) and tartaric acid / oxalic acid.

4. Non-aqueous titrimetric method for estimation of sodium glyphosate.