Page 145, Table II, fourth column heading should read:
Erratum
e = (At/t34)103
Our apologies to the following authors and to our readers
Due to the fact that the printer advanced our deadline on
the March 1976 issue, we were unable to wait for all
authors' galley proofs to be returned before going to press.
We offer our apologies to the following authors:
Patrick Valentin and Georges Guiochon
Toshihido Hanai and Kazumi Fujimura
N. Moiseyev and I. Platzner
C. David Pearson
Corrections to their articles appear below. Typographical
spelling errors, where the meaning is clear, have not been
included.
The following are corrections to the article, "Determination
of Gas-Liquid and Gas-Solid Equilibrium Isotherms by
Chromatography: II. Apparatus, Specifications, and
Results, " by Patrick Valentin and Georges Guiochon,
Journal of Chromatographic Science, 14(3) 132-139 (1976).
Page 134, equation 14, should read:
Page 135, first column, sentence beginning on line 29,
should read:
Refilling can be done periodically or constantly for high
concentrations.
Page 135, caption to Figure 2 should read:
Figure 2. Diffusion cell: (a) Principle; (1) Mixing volume;
(2) Diffusion tube; (3) Liquid in equilibrium with its vapor,
(b) Device used for preparation of large concentration
mixtures: (1) Mixing volume; (2) Diffusion volume; (3)
Liquid; (4) Sintered metal disk; (5) Refilling.
Page 139, equation 17 should read:
= t
f\
D + 4 A - k^B - XA
Page 147, equation 22 should read:
H(t) = 1/y 2[ 1 _ 1 Ni(t)
Eq. 22
Page 147, column two, last sentence of first paragraph, "In
addition . . . isotope effect" should be deleted.
The following are corrections to the article, "The Determination of Trace Mercaptans and Sulfides in Natural Gas
by a Gas Chromatography-Flame Photometric Detector
Technique," by C. David Pearson, Journal of Chromatographic Science, 14(3) 154-158 (1976).
Page 156, first column, third paragraph under the heading
Calculation, the tenth line should read:
E = slope of log plot = (log A1 /A2)/(log P1 /P2) where
A1 and A2 are areas, and P1 and P2 are the pressures
corresponding to those areas.
Page 156, first column, last sentence should read:
Stainless steel columns and connections are much more
robust and cause fewer problems with leaks and absorption than Teflon, particularly at higher temperatures.
Page 156, second column, last line of second paragraph
(b) under heading Gas Chromatographic Column should
read:
elution time (see Figure 8).
Page 157, caption to Figure 6 should read:
Figure 6. Chromatogram of commercial odorant,
Scentinel E. Conditions identical to Figure 5.
Page 158, caption to Figure 7 should read:
Figure 7. Chromatogram of commercial odorant,
Scentinel F 50. Conditions identical to Figure 5.
Eq.17
2
Pure Consistency***
3p dp
AA
+
k
BA "
k
AB "
k
BB
Page 139, reference 15 should read:
15. A. Raymond and G. Guiochon, J. Chromatog. Sci.
13 173 (1975).
The following are corrections to the article, "Non-Aqueous
Solvent Chromatography V: The Comparison of Organic
and Inorganic Adsorbents," by Toshihiko Hanai and
Kazumi Fujimura, Journal of Chromatographic Science,
14(3) 140-143 (1976).
Toshihiko Hanai's present address is the Institute of
Chemical Analysis, Applications, and Forensic Science,
341 Mugar, Northeastern University, Boston, Massachusetts 02115.
Page 140, column two, sentence beginning on the fourth
line under Table I should read:
The plate numbers (N) were calculated from N 16(7"/ W) 2 where T is the retention time (min) of the
sample and W is its peak width (min).
The following are corrections to the article, "Isotope Effect
in Gas-Solid Chromatography of SF6," by N. Moiseyev
and I. Platzner, Journal of Chromatographic Science 14(3)
143-148 (1976).
Page 144, column one, tenth line should read:
Partial separation of 1 2 c - 1 3 c and 16o - 18o isotopic
isomers of methane and carbon dioxide (13), 1 0B - 1 1 B
(14), 12c - 13c (15) and 32s - 34$ (15) as their volatile
fluorides, has also been reported.
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JOURNAL OF CHROMATOGRAPHIC SCIENCE • VOL. 14
Denver
APRIL 1976