Table 1.

Comparison of the region of interest of three serial sections of WKY rat brain

Sample	mTRAQΔ0 GABA (peak intensity)	mTRAQΔ4 GABA (peak intensity)	Normalized GABA (ratio)	Mean	SD	CV (%)
No. 1	16,735,218	19,256,516	0.87	0.87	0.014	1.62
No. 2	3,815,740	4,323,374	0.88
No. 3	6,270,675	7,339,209	0.85

Ratio was calculated by peak intensities of mTRAQΔ0 GABA to mTRAQΔ4 GABA peak. Mean, SD, and CV (%) were calculated based on the three ratios