SFA-20 Stopped Flow Device

What is it?

• One of the most frequently used rapid kinetics techniques.
• Used to study fast kinetics reactions (in the millisecond timescale) between two mixed reactants.
• Many applications in the chemistry and biochemistry fields.
  • Quenching studies
  • Energy transfers
  • Enzymes kinetics

How does it work?

• Under pneumatic drive activation, the two small volumes of solutions are driven from high performance syringes through a high efficiency mixer.
• The resultant mixture passes through a measurement flow cell and into a stopping syringe.
• Just prior to stopping, a steady state flow is achieved.
• As the solution fills the stopping syringe, the plunger hits a block, causing the flow to be stopped instantaneously.
• Using appropriate techniques, the kinetics of the reaction can be measured in the cell.

Features

• Dead time < 8 ms
• Observation cell optimized for best performance with SPEX^® instruments
• Integrates into any current SPEX^® fluorescence system
• Multi-mixing ability
• Flexible thermostat format
• Sample’s path constructed of chemically inert Kel-F™, silica, Teflon^®, and glass
• Crush-resistant flexible umbilical

Teflon^® is a registered trademark of E.I. DuPont de Nemours, Inc.