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. Author manuscript; available in PMC: 2009 Oct 1.
Published in final edited form as: Clin Chim Acta. 2008 Jun 27;396(1-2):43–48. doi: 10.1016/j.cca.2008.06.020

Figure 1. Ion Chromatogram of Cys, CySS, CySSG, GSH, And GSSG Standard Mixture.

Figure 1

A standard containing S-carboxymethyl-cysteine (CM-Cys), cystine (CySS), cysteine-glutathione disulfide (CySSG), S-carboxymethyl-glutathione (CM-GSH) and glutathione disulfide (GSSG) was used to test chromatographic and mass spectrometric conditions, and the resulting ion chromatogram was viewed with m/z windows of 180.0307–180.0343 for CM-Cys, 241.0287–241.0335 for CySS, 427.0920–427.0960 for CySSG, 366.0929–366.1002 for CM-GSH, 613.1530-613.165 + 307.0801-307.0863 for singly and doubly charged GSSG, and the total ion chromatogram (TIC).