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. Author manuscript; available in PMC: 2013 Nov 1.
Published in final edited form as: J Chromatogr B Analyt Technol Biomed Life Sci. 2012 Oct 3;908:76–86. doi: 10.1016/j.jchromb.2012.09.014

Fig. 3.

Fig. 3

A Total ion count (XIC) of positive scan MRM chromatograms of rapamycin with precursor ion [M+Na]+/product ion (m1) Q1/Q3 m/z: 936.6/409.3 and precursor ion [M+Na]+ product ion (m2) Q1/Q3 m/z: 936.6/345.3 (right side peaks at retention time 3.1 min), Erythromycin with precursor ion [M+H]+ product ion (m1) Q1/Q3 m/z: 734.4/576.3 and precursor ion [M+H]+ product ion (m2) Q1/Q3 m/z: 734.4/158.2 (left side peaks at retention time 1.5 min) in ocular matrix. (B) Extracted ion count (XIC) of positive scan MRM chromatograms of rapamycin with precursor ion [M+Na]+ product ion (m1) Q1/Q3 m/z: 936.6/409.3 and precursor ion [M+Na]+ product ion (m2) Q1/Q3 m/z: 936.6/345.3 (top two columns); Erythromycin with precursor ion [M+H]+ product ion (m1) Q1/Q3 m/z: 734.4/576.3 and precursor ion [M+H]+ product ion (m2) Q1/Q3 m/z: 734.4/158.2 (bottom two columns).