A new generation of temperature-controlled cuvette holders for ultraviolet/visible, fluorescence, circular dichroism, light scattering, transient absorption, fiber optics, near infrared, Raman, neutron scattering and photoacoustic spectroscopies. Custom instrumentation is also available. Products include the qpod, qpod 2e, flash 300, cd 250, turret 6, t 2, and t 2×2.