This is the first application of LPS in a procedure based on discolorimetry.
The multi-pumping approach was adopted for independent solution handling and due to the inherent pulsed flow, aiming improved mixing and higher diffusion efficiency.
As the involved reactions (formation of HCN and the [Cu(BCA)2]3 complex) are fast, the reactor coils (B1and B2) were as short as possible to minimize backpressure.