Figure 2From: A new strategy for faster urinary biomarkers identification by Nano-LC-MALDI-TOF/TOF mass spectrometryRecovery of spiked peptides after C2-ethyl solid phase extraction of a healthy volunteer's urine sample. Signal intensities of 4 standard peptides were evaluated before and after C2 ethyl SPE extraction. Error bars represented SD of triplicate measurements.Back to article page