Smartchem Chemistry Analyzer (NO3, NH4, PO4, & SiO2) Agilent 5800 ICP-OES (Trace Elements) Metrohm 940 Professional Ion Chromatograph Vario with autosampler (Anions & Cations) Shimadzu GC-2014 with CTC AOC-5000 autoinjector and 3 detectors (FID, ECD, TCD) Thermoscientific Genesys 150 UV-Visible Spectrophotometer Agilent Technologies 1260 Infinity I HPLC System Elementar Unicube CHN with autosampler Seal AQ2 Discrete Analyzer (PO4) Shimadzu TOC-V CSH with TNM-1 and ASI-V Autosampler (DOC & TDN)