C Instruments for Analysis

Generally, instruments lor chemical analvsis com piise jiisi a few basic components, some (d which art listed in Table I 2. lo understand iIic relationship. among these instrument components and the How ol informaiion from the characlcrislic.s of ihe analyte through the components to the numerical or graphical output produced by the instrument, it in iiiMniciivc to e.xplore how the information of imeiesi can be represented and transformed. 

Inslrumenl Energy Source (sUmulus) Analytical Informalion Information Sorter Input Transducer Data Domain of Transduced Information Signal Processor/ Readout 

Photomeicr Tungsten lamp Alionuaiod light beam Kilter Phoiodiodc nieciricat current Amplifier, digitizer, LED display 

Atomic Inductively IJV or visible Monochromator Phoiomutlipticr Eleclricai Amplifier, 

s spociromeler Ion source Mass-lo-charge ratio Mass analyzer Electron multiplier Electrical current Amplifier, digitizer, computer system 

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