Nature Methods | Review $ _+ f2 ]8 X0 H0 N, P2 UProfiling metabolites and peptides in single cells 9 w& C& S1 S- lStanislav S Rubakhin,1 Elena V Romanova,1 Peter Nemes1 & Jonathan V Sweedler1 5 M1 R7 ]' \& |3 Phttp://www.nature.com/nmeth/journal/v8/n4s/pdf/nmeth.1549.pdf