Fig. S4.
Tandem mass spectrometry analysis of sugar phosphates synthesized in microdroplets. The mass spectra match with the expected patterns for (A) d-ribose-1-phosphate, (B) d-glucose-1-phosphate, (C) d-galactose-1-phosphate, (D) d-fructose-1-phosphate, and (E) l-ribose-1-phosphate, respectively. The tandem mass spectra were obtained using CID.