TJA Model iCAP 6000 ICP-AES TJA Model IRIS 1000 dual-view ICP-AES CEM MDS-2100 microwave system Lachat 8000 Ion Analyzer O.I. Alpkem A/E ion analyzer Dionex 2000i/SP ion chromatograph Leco Tru-Mac CN AIM600 Digestion System Eijkelkamp aggregate stability apparatus (wet sieving) Perkin Elmer FIMS 100 Mercury Analysis System Labfit Dual-Probe Automated pH System