3758
Langmuir 2002, 18, 3758-3758
Additions and Corrections Experimental Test of the Ion Condensation A. Ferna´ndez-Nieves, A. Ferna´ndez-Barbero, F. J. de las Nieves* Langmuir 2000, 16, 4090.
and
There is a mistake in eqs 13 and 14 that yields to fractions of condensed counterions below those presented in the paper. There is a 4π missing in the denominator of eq 13. As a result, eq 14 must read as follows:
4πηa(1 + κa) n )1µ Z Ze This modification yields values for n/Z below the theoretical predictions, particularly for the lowest charged latex particles. At high charges (Z > 105), the disagreement is within experimental error. In fact, recent results1,2 show that for higher surface charges than those of this paper, the extension to the Debye-Huckel-Bjerrum theory quantitatively agrees with experimental results. In addition to this error, there are two typographical errors, which we will like to correct. In the definitions of φn and φf (page 4091), Fn3 and Ff3 should be substituted by Fn and Ff, respectively. We thank Professor Hidalgo-A Ä lvarez and Dr. QuesadaPe´rez for painstaking reading of the paper, which allowed the mistake to be detected. (1) Ferna´ndez-Nieves, A.; Ferna´ndez-Barbero, A.; de las Nieves, F. J. Phys. Rev. E 2001, 63, 041404. (2) Ferna´ndez-Nieves, A.; Ferna´ndez-Barbero, A.; de las Nieves, F. J. Phys. Rev. E 2001, 64, 032401.
LA0200818 10.1021/la0200818 Published on Web 04/02/02
