Razón española, Edizioni 21-26Fundación Balmes, 1983 |
Dall'interno del libro
Risultati 1-3 di 54
Pagina 731
... column ( see time to in Figures 25-2 and 25-3 ) . Isolation of the separated species is then accomplished by passing a sufficient quantity of mobile phase through the column to cause the individual bands to pass out the end , where they ...
... column ( see time to in Figures 25-2 and 25-3 ) . Isolation of the separated species is then accomplished by passing a sufficient quantity of mobile phase through the column to cause the individual bands to pass out the end , where they ...
Pagina 782
PROBLEMS 26-1 . A GLC column was operated under the following conditions : Column : 1.10 m × 2.0 mm packed with Chromosorb P ; weight of stationary liquid added , 1.40 g ; density of liquid , 1.02 g / mL Pressures : inlet , 25.1 psi ...
PROBLEMS 26-1 . A GLC column was operated under the following conditions : Column : 1.10 m × 2.0 mm packed with Chromosorb P ; weight of stationary liquid added , 1.40 g ; density of liquid , 1.02 g / mL Pressures : inlet , 25.1 psi ...
Pagina 792
... column required only one - third the time with a con- comitant saving in solvent . Guard Columns . Often , a short guard column is introduced before the analytical column to increase the life of the analytical column by removing ...
... column required only one - third the time with a con- comitant saving in solvent . Guard Columns . Often , a short guard column is introduced before the analytical column to increase the life of the analytical column by removing ...
Sommario
Contents | 1 |
Elementary Electronics | 30 |
Microcomputers and Microprocessors in Chemical Instrumentation | 80 |
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absorbance absorption acid amplifier Anal analysis analyte analytical signal anode applications atoms beam Beer's law Calculate cathode cell Chem chemical chromatography circuit column components compounds concentration constant containing coulometric curve detector determination device dispersion effect elec electrical electrode elements emission employed energy Equation example excited filter flame fluorescence frequency function hydrogen infrared input instruments ionization iron(II liquid magnetic mass mass spectrometer measurements membrane ment methods mobile phase molar absorptivities molecular molecules monochromator obtained operational amplifier optical output oxidation particles peak photomultiplier plate polarized polarography potential prism protons pulse quantitative radiation Raman range reaction reagent refractive refractive index region relative rotation sample sensitivity shown in Figure signal slit solution solvent species spectra spectrometer spectrophotometer spectroscopy spectrum standard deviation stationary phase surface temperature tion titration trode tube typical ultraviolet V₁ vibrational voltage wave wavelength X-ray