I am studying for my undergraduate thesis, the removal of natural organic matter in water by using agricultural solid waste activated carbon. One of the parameters for my study will be the analysis of the total organic carbon (as a measurement of the natural organic matter) in water before and after treatment of water with the activated carbon that i am going to produce. Can you suggest any laboratories in that have TOC analyzers or does TOC analysis and their contact details? It would really help my research a lot!