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f <br /> 4. T, uid Chromata ra h <br /> Alter model C.S4400 liquid chromatograph (LC) is <br /> equipped with a microcomputer-controlled solvent <br /> gradient system, a multichannel chromatography data <br /> system, a variable wavelength UV/VIS detector, and <br /> heads for both analytical and preparative scale work. <br /> c Inductively Coupled Plasma S ectrometer <br /> t <br /> The Perkin--Elmer Plasma I1 Inductively coupled plasma <br /> spectrometer ( ICP) is equipped with a Perkin-Elmer <br /> Model 7500 Professional Computer with color graphics <br /> for full automation of sample processing and data <br /> handling. Supported with a PR 210 dot-matrix color <br /> printer, the instrument is capable of determining up to <br /> 15 different trace metals in a single analysis. <br /> 6. Atomic Absorption Spectrophotometers <br /> + <br /> The- five instruments in current use include Perkin- <br /> Elmer models 5000, 2380 (2) , 460, and 503 which are <br /> J equipped to perform flame, graphite furnace, gaseous <br /> hydride, and cold vapor analyses. The PE 5000 has a <br /> Zeeman background correction system. <br /> 7. Ion Chromatographs <br /> A Dionex Model 10 and a Dionex Model QIC are equipped <br /> with conductivity and electrochemical detectors. They <br /> are employed for multicomponent analysis of anion;'and <br /> cations in complex matrices. <br /> 8. Autoanalyzers <br /> An Alpkem Model RFA 300 and a Technicon Model II <br /> autoanalyzers are routinely used for nutrient analyses. <br /> Manifolds available include 1102, 1403, PO4, Cl, 5O4, CN, <br /> U113, Cr VI, and TKN. <br /> 9. Spectrophotometers <br /> The nine spectrophotometers available for routine use . <br /> include Bausch and Lomb fixed wavelength models, <br /> Perkin-Elmer models UV/VIS 283 and 1375 IR, and a <br /> Coleman model 21 flame photometer. <br /> IV-3 <br />