LKS80 Laser Flash Photolysis Spectrometer

Applied Photophysics is the longest-established supplier of laser flash photolysis instruments, supplying instrumentation since 1973. The experience gained over this period has resulted in our latest model, the LKS80 laser flash photolysis spectrometer.  The LKS80 offers even higher sensitivity than earlier models, and the new Windows^® based control software, Pro-Data LKS, provides greater ease of use and extended functionality.

• Unmatched sensitivity for single and multi-wavelength kinetics
• Optimised for nanosecond to second measurements
• Upgradeable to a combined (SX20) stopped-flow spectrometer
• Modular design for future-proof versatility
• New Pro-Data control software running on Windows^® 7

Laser Flash Photolysis provides one of the most effective methods for studying by direct measurement the reactions of transient species such as radicals, excited states or ions, in chemical and biological systems.

The flash photolysis concept is very simple: a short pulse of (laser) light is used to interact with a sample that has been placed in the optical path of a spectrometer. The result of the interaction can be either a transient absorption or an emission process. The changes in detector signal taking place following laser excitation may be due to a variety of processes such as electronic excitation producing a triplet state, cleavage of a molecule producing radicals, electron transfer, molecular rearrangement etc...

Laser flash photolysis has been used increasingly in the area of bioinorganic reaction mechanisms, for example, studies on electron transport in cytochromes or ligand binding by heme containing proteins. Recent cutting-edge applications include studies on the conformational changes of functional proteins that occur during the course of their activity.