Fig. 3: Concentration measurement setup.
From: A mid-infrared lab-on-a-chip for dynamic reaction monitoring
A peristaltic pump continuously pumps the stock solution (50 ml BSA in D2O at 150 mg ml−1) to the measurement beaker, initally filled with pure D2O. The QCLD-sensor is directly submerged in this second beaker to monitor the concentration changes.
