Electrokinetic Transport in Nanochannels. 1. Theory - Analytical

Dec 24, 2005 - Electrokinetic Transport in Nanochannels. 1. Theory. Sumita Pennathur ,* and Juan G. Santiago. Anal. Chem. , 2006, 78 (3), pp 972–972...
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Anal. Chem. 2006, 78, 972-973

Correction Electrokinetic Transport in Nanochannels. 1. Theory Sumita Pennathur,* and Juan G. Santiago (Anal. Chem. 2005, 77, 6772-6781).

The left-hand side of eq 13 should contain a “u0” in the second term instead of “1”. Equation 19 should include a “1/G” factor as follows: 〈uS〉 ) -

〈 (

)(

)〉

Exζ -zSe(ψ(y) - ψc) ψ(y) exp 1µG kT ζ

+ νSzSFEx (19)

Accordingly, eq 23 should read 〈νS,nano〉 νS

)1+

(〈 (

)(

)〉

-zSe(ψ(y) - ψc) ψ(y) 1 exp 1/G β kT ζ

〈(

1-

)〉)

ψ(y) ζ

(23)

The associated figures of the article are correct as they were generated using the correct equations. Two exceptions: The zeta potential in Figure 1 should read ζ* ) -2, and the z-axis of Figure 4 should read |1/β|. AC0521403 10.1021/ac0521403 Published on Web 12/24/2005

Electrokinetic Transport in Nanochannels. 2. Experiments Sumita Pennathur* and Juan G. Santiago (Anal. Chem. 2005, 77, 6782-6789)

Equation 1 should include a “1/G” factor as follows:

〈 (

)(

)〉

-zSe(ψ(y) - ψc) Exζ ψ(y) 〈uS〉 ) exp 1µG kT ζ

+ νSzSFEx (1)

Accordingly, eq 2 should read 〈νS,nano〉 νS

)1+

(〈 (

)(

)〉

-zSe(ψ(y) - ψc) ψ(y) 1 exp 1/G β kT ζ

〈(

1-

)〉)

ψ(y) ζ

(2)

The associated figures of the article are correct as they were generated using the correct equations. AC052141V 10.1021/ac052141v Published on Web 12/30/2005 972 Analytical Chemistry, Vol. 78, No. 3, February 1, 2006

10.1021/ac0521403 CCC: $33.50

© 2006 American Chemical Society Published on Web 12/24/2005

Secondary Ion MS Imaging in Picoliter Vials with a Buckministerfullerene Ion Source Sara G. Ostrowski, Christopher Szakal, Joseph Kozole, Thomas P. Roddy, Jiyun Xu, Andrew G. Ewing, and Nicholas Winograd (Anal. Chem. 2005, 77, 6190-6196).

In Table 2, the counts reported for Ga yield/nC and C60 yield/ nC should have been divided by the number of pulses (5 × 105) to be reported per nC. The important ratios of C60/Ga reported in the last column are accurate. AC058047W 10.1021/ac058047w Published on Web 12/17/2005

10.1021/ac058047w CCC: $33.50 Published on Web 12/24/2005

© 2006 American Chemical Society

Analytical Chemistry, Vol. 78, No. 3, February 1, 2006 973