Table 3.

LC × LC Results using maize extract samples under Elution Condition 1.

Column	1nch	2nci	(〈β〉)j	$n_{c,2D}^{\ast }$ k	fcoveragel	$n_{c,2D}^{\prime }$ m	Peaks1Dn	Peaks2Do	r2p
HC–COOHa	60	32	1.89	1016	0.63	640	42	152	0.163
F5b	72	34	2.17	1128	0.55	620	57	147	0.192
C8c	87	33	2.53	1135	0.58	658	68	136	0.221
C3d	90	34	2.61	1172	0.56	657	64	154	0.283
CNe	92	31	2.66	1072	0.60	643	61	153	0.259
Bonusf	97	33	2.79	1147	0.59	677	69	157	0.190
Ratiog	1.6	1.1	1.5	1.2	1.1	1.1	1.6	1.2	1.7

^aHC–COOH: Home-made HC–COOH (5 μ particles).

^bF5: Discovery HS-F5 (3 μ particles).

^cC8: Zorbax 300SB-C8 (3.5 μ particles).

^dC3: Zorbax 300SB-C3 (3.5 μ particles).

^eCN: Zorbax SB-CN (3.5 μ particles).

^fBonus: Zorbax Bonus-RP (3.5 μ particles).

^gRatio: The ratio of the largest value over the lowest value in each column.

^h1n_c: First dimension peak capacity.

ⁱ²n_c: Second dimension peak capacity.

^j(〈β〉): D–S–C under-sampling correction factor.

^k $n_{c,2D}^{\ast }$: Corrected LC × LC peak capacity.

^lf_coverage: Coverage factor.

^m $n_{c,2D}^{\prime }$: Effective LC × LC peak capacity.

ⁿPeaks_1D: Number of observed peaks from 1DLC chromatograms.

^oPeaks_2D: Number of observed peaks from LC × LC chromatograms.

^pr²: Coefficient of determination of peaks on LC × LC chromatograms.