Figure 6

Positive mode low energy mass spectrums (a) Unknown at RRT 0.84; (b) Unknown at RRT 0.85; (c) Unknown at RRT 0.87; (d) Mycophenolic acid sorbitol ester.

Positive mode low energy mass spectrums (a) Unknown at RRT 0.84; (b) Unknown at RRT 0.85; (c) Unknown at RRT 0.87; (d) Mycophenolic acid sorbitol ester.