The Jasco J-710 CD is a research grade instrument used for measuring the circular dichroism of compounds in solution, including small molecules, peptides and proteins. The instrument was purchased in 1995 and has recently been upgraded to a J-715. The system will accept a number of sample devices, but the default is a Peltier controlled thermostated cell holder designed for standard 1cm x 1cm quartz cuvettes. Spacers are included to accommodate smaller cuvettes. The use of long path length liquid or gas cells requires removing the Peltier device and should only be done by Instrument Services staff.