Principles of Instrumental AnalysisSaunders College Pub., 1992 - 700 pagine Introduction; operational amplifiers in chemical instrumentation;digital electronics, microprocessors,and computers; signal and noise; properties of electromagnetic radiation;instruments for optical spectroscopy;an introduction to molecular ultraviolet, visible and enar-infrared absorption spectroscopy;application of molecular ultraviolet,visible absorption spectroscopy;molecular fluorescence, phosphorescence and chemiluminescence; atomic spectroscopy based upon flame and electrothermal atomization;emission spectroscopy based upon plasma, arc and spark atomization;infrared absorption spectroscopy;raman spectroscopy;nuclear magnetic resonance spectroscopy;x-ray spectroscopy;analysis of surfaces with electron beams;radiochemical methods;mass spectrometry;an introduction to electroanalytical chemistry;potentiometric methods;coulometric methods; voltammetry; thermal methods;an introduction to chromatographic separation;gas chromatography;high-performance liquid chromatography;other separation methods;automated methods of analysis. |
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Pagina 213
... cathode Quartz or Pyrex window FIGURE 10-19 Schematic cross section of a hollow cathode lamp . Ionization of the inert gas occurs when a potential on the order of 300 V is applied across the electrodes , and a current of about 5 to 20 ...
... cathode Quartz or Pyrex window FIGURE 10-19 Schematic cross section of a hollow cathode lamp . Ionization of the inert gas occurs when a potential on the order of 300 V is applied across the electrodes , and a current of about 5 to 20 ...
Pagina 520
... cathode potential ( Ecnck ) as a function of time . It is evident that as IR and nak become less negative , one or more of the other potentials in Equation 21-2 must become more negative . Because of the large excess of reactant and ...
... cathode potential ( Ecnck ) as a function of time . It is evident that as IR and nak become less negative , one or more of the other potentials in Equation 21-2 must become more negative . Because of the large excess of reactant and ...
Pagina 521
... cathode , if unchecked , will prevent all but the crudest of separa- tions . The change in cathode potential is governed by the decrease in IR drop ( Figure 21-1b ) . Thus , where relatively large currents are employed at the outset ...
... cathode , if unchecked , will prevent all but the crudest of separa- tions . The change in cathode potential is governed by the decrease in IR drop ( Figure 21-1b ) . Thus , where relatively large currents are employed at the outset ...
Sommario
Overview | 1 |
Operational Amplifiers | 10 |
Digital Electronics Microprocessors | 29 |
Copyright | |
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absorbance absorption activity addition amplifier Anal analysis analyte applications atomic band beam Calculate cause cell Chem chemical chromatography circuit column complex components compounds concentration constant containing curve described detector determination device difference discussion effect electrical electrons elements emission employed energy Equation example excited field filter fluorescence frequency function give given grating important increase infrared instruments intensity ions laser length less limited lines liquid magnetic mass measurements methods molecules monochromator noise Note observed obtained occurs operational optical output peak phase potential produced radiation Raman spectroscopy range ratio reaction reference region relative sample sensitivity separation shown in Figure shows signal slit solid solution solvent species spectra spectroscopy spectrum standard surface Table temperature transitions tube types typical usually vibrational voltage wave wavelength X-ray York