Chemical Instrumentation: A Systematic Approach to Instrumental AnalysisAddison-Wesley Publishing Company, 1960 - 653 pagine |
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Pagina 162
... absorbance that is between the extreme values at wave- lengths a and b , but it will not be the mean . This is because the detector response varies directly with the transmitted power . Since the absorbance varies logarithmically ( and ...
... absorbance that is between the extreme values at wave- lengths a and b , but it will not be the mean . This is because the detector response varies directly with the transmitted power . Since the absorbance varies logarithmically ( and ...
Pagina 163
... absorbance determined using radiation of bandwidth ab will thus be smaller than the absorbance at the mean wavelength . At the higher concentration ( curve A ) the difference in the values of the transmitted power at a and at b is ...
... absorbance determined using radiation of bandwidth ab will thus be smaller than the absorbance at the mean wavelength . At the higher concentration ( curve A ) the difference in the values of the transmitted power at a and at b is ...
Pagina 181
... absorbance is not to exceed 1.3 ? [ Ans .: 8.1 × 10-5 M. ] 4. A cadmium - zinc alloy is known to contain about 5 % iron . It is proposed to analyze for the iron by specific complexing with 5 - sulfoanthranilic acid . As carried out , a ...
... absorbance is not to exceed 1.3 ? [ Ans .: 8.1 × 10-5 M. ] 4. A cadmium - zinc alloy is known to contain about 5 % iron . It is proposed to analyze for the iron by specific complexing with 5 - sulfoanthranilic acid . As carried out , a ...
Sommario
THE SCIENCE OF INSTRUMENTATION | 1 |
ERRORS OF MEASUREMENT | 14 |
CHAPTER 3 | 37 |
Copyright | |
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Chemical Instrumentation: A Systematic Approach to Instrumental Analysis Howard A. Strobel Visualizzazione estratti - 1960 |
Parole e frasi comuni
absorbance absorption acid amplifier analysis analyzed angle anode applied atoms band beam Beer's law calibration calomel capacitance capacitor cathode cell Chem chemical circuit components concentration conductance constant coulometric curve detection detector determined device diffusion diode dispersion drop effect electrical electrode electrolysis electron tube emission end point energy error example filter frequency galvanometer glass grid incident input instrument intensity ionization ions layer liquid measurement mercury metal meter method mixture molecules obtained operation optical optical rotation output oxidized particles pH meter photometer phototube plate current platinum polarized polarographic potential potentiometer precision prism procedure quantitative radiation range reactance reaction reflection refractive index region resistance resistor result rotation sample sawtooth wave scattering schematic Section sensitivity shown in Fig signal slit solution solvent species spectra spectrophotometer spectrum standard substance techniques temperature thyratron tion titration transistor triode variable vibrational voltage wave wavelength