Analytical Chemistry |
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Pagina 445
The most common source of visible radiation is the tungsten filament lamp ,
which is useful for the wavelength region between 320 and 2500 nm . The output
of a tungsten lamp varies approximately as the fourth power of the operating
voltage ...
The most common source of visible radiation is the tungsten filament lamp ,
which is useful for the wavelength region between 320 and 2500 nm . The output
of a tungsten lamp varies approximately as the fourth power of the operating
voltage ...
Pagina 450
SAMPLE CONTAINERS In common with the optical elements of monochromators
, the cells or cuvettes that hold the samples must be made of material that passes
radiation in the spectral region of interest . Thus quartz or fused silica is ...
SAMPLE CONTAINERS In common with the optical elements of monochromators
, the cells or cuvettes that hold the samples must be made of material that passes
radiation in the spectral region of interest . Thus quartz or fused silica is ...
Pagina 464
ABSORBING SPECIES Absorption in the visible and ultraviolet regions can yield
both quantitative and qualitative ... held that their excitations require energies
corresponding to wavelengths in the vacuum ultraviolet region ( a < 180 nm ) .
ABSORBING SPECIES Absorption in the visible and ultraviolet regions can yield
both quantitative and qualitative ... held that their excitations require energies
corresponding to wavelengths in the vacuum ultraviolet region ( a < 180 nm ) .
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Sommario
Preface | 1 |
A Review of Some Elementary Concepts | 8 |
A Review of Simple Equilibrium Constant | 24 |
Copyright | |
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absorbance absorption acid activity added addition amount analysis analyte application approximately balance base becomes Calculate carbonate cause cell Chapter chemical chloride chromatography color column common complex concentration considered constant containing curve described determined deviation difference dilute direct Discussion dissociation dissolved drop effect electrode employed end point Equation equilibrium equivalence point error example excess exist expression Figure filter flask formation give given glass heating hydrogen hydroxide important increase indicator involves iodine less limited liquid liter mean measurements metal method NaOH needed Neutralization Note obtained occurs organic oxidation phase potassium potential precipitate prepared presence problem Procedure quantity radiation reaction reagent reduced region relative sample separation shown silver sodium solid solubility solution species standard substance surface Table temperature titration volume volumetric weight