Figure 4
From: On the chemistry of 1-pyrroline in solution and in the gas phase

Evaporative loss of 1-pyrroline from aqueous solution with a concentration of 200 ppb as a function of vacuum evacuation time (a), and the evaporative loss of 1-pyrroline from DMSO solution at a fixed evacuation time (30 min) as a function of concentration (b) measured by APCI-MS analysis.