Rapid-Kinetics and Spectroscopy: Stopped-Flow; Fluorescence, Absorbance, Circular Dichroism, Anisotropy Spectrometry

Special mixing of viscous solutions

In our all our Stopped-Flow instruments, syringe velocity is programmed and thus is independent of the solution viscosity. Very asymmetric mixing such as pure glycerol against water can therefore be achieved.

Mixer technology
The mixer is the heart of a stopped-flow instrument. Although being often referred as "T-mixer" a straight T-connection between 3 tubes is capable of mixing two solutions only in limited cases (aqueous solutions, symmetrical 1:1 mixing, limited range of flow rate). The mixer used in the Bio-Logic Stopped-Flow are all based on the "ball mixer" technology which is a proven design for creating turbulence in the most stringent conditions. Because of it the Bio-Logic Stopped-Flow can operate in a wide range of fluidic conditions such as : high dilution ratio (up to 1:100), high range of flow rate (from 1 to 20 mL/s), mixing of highly viscous solutions against water (viscosity up to 2000 centipoises or 2 pascal.second have been achieved).