Piero a Grado, Pisa, Italy. (6) G. Curzio and A. Gentili, Giorn.Fis. San. Rad., 14(3), 140. (1970). ANALYTICAL CHEMISTRY,VOL. 44, NO. 8, JULY 1972 ·...
Noble gas adsorption characteristics of charcoal beds. Van Deemter's coefficients evaluation. G. G. Curzio, and A. F. Gentili. Anal. Chem. , 1972, 44 (8), ...
improper reduction of the Eisenman equation for determining the selectivity ratios of ions of ... Sir: Van Deemter's equation (1) has been extensively used in gas ...
Étude de l'utilisation du téflon comme support en chromatographie gaz-liquide. Catherine Landault , Georges Guiochon. Journal of Chromatography A 1962 9, ...
May 1, 2002 - Étude de l'utilisation du téflon comme support en chromatographie gaz-liquide. Catherine Landault , Georges Guiochon. Journal of ...
Kagawa, Katsumi. Fujita, Kenji. Tada, and Issei. Nakamori. Anal. Chem. , 1972, 44 (8), pp 1540â1541. DOI: 10.1021/ac60316a029. Publication Date: July 1972.
(27) Lovelock, J. E., Lipsky, S. R., J. Am. Chem. Soc. 82, 431 (1960). (28) McWilliam ... Butterworths,. London, 1958. (29) Martin, A. J. P., James, A. T.,. Ãiochem.
BY F. E. B2wrI;LI, AND LEWIS E. LLOYD. Three types of activated charcoal were ... Temperature Charcoal,â activated below 250' in a strongly oxidizing gaseous ...
Three types of activated charcoal were prepared in this investigation, a âHigh Temperature Char- coal,â activated at 1000° in an oxidizing atmos- phere ...
May 10, 2017 - The Cretaceous Trinity Group hosting the Trinity Aquifer is the main source of drinking water in Parker and Hood counties.16,41 In the study area ...... Shallow Gas, NORM, and Trace Metals; Research Partnership to Secure. Energy for Am
Aug 26, 2012 - Department of Chemistry, Physicochemistry of Carbon Materials Research Group, Nicolaus Copernicus University, Gagarin Street 7,. 87-100 ...
Barium Ion-Selective Electrode Based on a Neutral Carrier Complex SIR: Correspondence with W. Simon ( I ) indicates that while our experimental data are in excellent agreement, the selectivity ratios for monovalent cations in Table I1 of my recent paper (2) are in error. The error stemmed from an improper reduction of the Eisenman equation for determining the selectivity ratios of ions of mixed valence. The general Eisenman equation and the reduced forms as derived by Simon are :
Table I. Approximate Selectivity Ratios for Various Cations Ion
KB&X
Ba2+ Ca2+ MgZ+
Ni2+ co2+ Zn2+
Fez+ K+ "4'
= =
Na+
activity of ion to be determined of charge n activity of interfering ion of charge z
EMF of cell assembly with activity a of ion to be determined (mV) EMF of cell assembly with activity a of interfering ion (mV> e.g., at a = 0.1 and Ba*+/Na+:
