Chemical Instrumentation: A Systematic Approach to Instrumental AnalysisAddison-Wesley Publishing Company, 1960 - 653 pagine |
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Pagina 236
... sample . At least one in- strument , the Pulfrich , also provides a thermostated " finger " that may be dipped into the sample . Unless evaporation is also minimized with liquids , the sample temperature will not be uniform . 9-3 ...
... sample . At least one in- strument , the Pulfrich , also provides a thermostated " finger " that may be dipped into the sample . Unless evaporation is also minimized with liquids , the sample temperature will not be uniform . 9-3 ...
Pagina 527
... sample of nearly the same concentration in the sub- stance sought . The heights of the waves obtained stand in the same ratio as their concentrations . In routine work where samples can be closely matched with standards , this method is ...
... sample of nearly the same concentration in the sub- stance sought . The heights of the waves obtained stand in the same ratio as their concentrations . In routine work where samples can be closely matched with standards , this method is ...
Pagina 587
... sample precisely with respect to the detector must be provided . The sample - counter distance may be varied but cannot be less than 1 cm . When samples are very close to a counter window , many rays enter the detector obliquely but ...
... sample precisely with respect to the detector must be provided . The sample - counter distance may be varied but cannot be less than 1 cm . When samples are very close to a counter window , many rays enter the detector obliquely but ...
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 activity addition allow amplifier analysis angle applied atoms band beam capacitor cathode cell charge circuit complex components concentration conductance constant curve dependence desired detector determined device direction discussed dispersion drop effect electrical electrode electrolysis energy error example field filter frequency give given glass greater grid incident increase indicator intensity interest ions known light limited lines means measurement mercury metal method mixture molecules negative Note observed obtained occurs operation optical output plate polarized positive possible potential precision present prism procedure produced radiation range reaction reduced reference reflection refractive region relative representative resistance response result sample scattering sensitivity shown signal slit solution species standard substance surface Table temperature tion titration tube usually varies voltage wave wavelength