. Author manuscript; available in PMC: 2010 Mar 15.

Published in final edited form as: Anal Chem. 2009 Mar 15;81(6):2294–2302. doi: 10.1021/ac802466g

Table 1.

Effect of Sheath-Flow Rate on Detection of 100 μM Catechol Solution Eluting from Separation Capillary.

Sheath-Flow Rate (μL/min)	Amplitude (pA)	Amount (fmol)	Coulometric Efficiency (%)	Theoretical Plates (N)	LOD (μM)
0.0	390 ± 15	9.5 ± 1.0	19 ± 2	26000 ± 2600	0.57 ± 0.02
0.2	430 ± 46	12.8 ± 6.0	26 ± 14	24000 ± 1500	0.53 ± 0.05
0.5	480 ± 110	17.2 ± 6.1	36 ± 13	24000 ± 18000	0.50 ± 0.13
1.0	390 ± 170	7.8 ± 3.3	16 ± 6	37000 ± 12000	0.66 ± 0.27
2.0	250 ± 65	4.5 ±1.0	9 ± 2	38000 ± 13000	0.95 ± 0.27

n = 3. Error is the standard deviation of the mean.