Figure 4From: Technology platform development for targeted plasma metabolites in human heart failureSelection of a reconstitution solvent. (a) In the setting of 6.5 mM ammonium bicarbonate, the signal intensity was recorded as 3.49E3. (b) In the setting of 0.1% formic acid, the signal was enhanced to 2.29E4, with an additional 108 peaks detected. Therefore, 0.1% formic acid was elected as the reconstitution solvent.Back to article page