Chemical Instrumentation: A Systematic Approach to Instrumental AnalysisAddison-Wesley Publishing Company, 1960 - 653 pagine |
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Pagina 248
... determined under optimum conditions . EXAMPLE 2. The percentage of CO2 in dry air is to be determined . At standard conditions the refractive indices np for air and CO2 are 1.000292 and 1.000450 respectively , giving a An of 15800 × 10 ...
... determined under optimum conditions . EXAMPLE 2. The percentage of CO2 in dry air is to be determined . At standard conditions the refractive indices np for air and CO2 are 1.000292 and 1.000450 respectively , giving a An of 15800 × 10 ...
Pagina 439
... determined in a mixture of NH3 , N2 , and H2 by absorption in dilute acid . In this method , the measurement consists of a comparison of the initial and final conductivities . The sample is used in the reference cell , and the mixture ...
... determined in a mixture of NH3 , N2 , and H2 by absorption in dilute acid . In this method , the measurement consists of a comparison of the initial and final conductivities . The sample is used in the reference cell , and the mixture ...
Pagina 527
... determined consecutively . The weight w1 of the substance being determined in the sample to which nothing was added is determined from the expression X2 w1 = i1x2 Δι ( 16-8 ) where x2 is the weight of standard added to sample 2 , i is ...
... determined consecutively . The weight w1 of the substance being determined in the sample to which nothing was added is determined from the expression X2 w1 = i1x2 Δι ( 16-8 ) where x2 is the weight of standard added to sample 2 , i is ...
Sommario
THE SCIENCE OF INSTRUMENTATION | 1 |
ERRORS OF MEASUREMENT | 14 |
CHAPTER 3 | 34 |
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 emission end point energy error example filter frequency galvanometer gas chromatography 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 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