Supporting information may be found in the online version of this article.

jms_3114_sm_f1.docxWord document227KSupporting Figure 1. Photomicrographs of the sinapinic acid matrix crystals after automated deposition using the ImagePrep system. The conventional ethanol washes (70% and 90% for 30 s, respectively) (A) and optimized serial ethanol and buffer washes (500 mM ammonium formate in water–acetonitrile solution (9:1; v/v, 0.1% TFA, 0.1% Triton) for 90 s) (B) are shown. The matrix crystals are displayed in black.

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