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. Author manuscript; available in PMC: 2008 Feb 4.
Published in final edited form as: Anal Chem. 2005 Jul 15;77(14):4439–4447. doi: 10.1021/ac058000a

Figure 10.

Figure 10

MALDI-TOF mass spectra of the tear total chloroform extractables acquired (a) without the use of the IMAC ZipTip cleanup method and (b) with the use of the IMAC ZipTip cleanup prior to spectral acquisition.