. Author manuscript; available in PMC: 2023 Dec 11.

Published in final edited form as: J Am Soc Mass Spectrom. 2011 Apr 26;22(8):1326–1333. doi: 10.1007/s13361-011-0134-8

Table 1.

Ratio of Tumor to Normal Ascorbic Acid Absolute Intensities

Sample	Ratio of tumor to normal of ascorbic acid (m/z 175)

MH0209-33	1.16
UH0201-20 (original)	14.00
UH0201-20 (duplicate)	17.07
UH0206-08 (original)	1.32
UH0206-08 (duplicate)	1.03
UH0010-40 (original)	2.86
UH0010-40 (duplicate)	1.17
UH0101-35 (original)	1.76
UH0101-35 (duplicate)	1.34
UH0201-09 (original)	2.32
UH0201-09 (duplicate)	2.39
UH0303-05	2.17
UH0310-56	2.12
UH0810-35	11.43
UH0408-40	3.51
UH0001-02	1.54
UH0108-13	1.27
Total of 17 samples ratio > 1
UH0711-36	0.92
UH0503-08	0.86
UH0604-49	0.31
Total of 3 samples ratio < 1