Varian 4000 UV-VIS spectrometer

Varian 4000 UV-VIS spectrometer (Agilent, USA) equipped with an integration sphere can be used in transmission or reflection mode. Integrating spheres are ideal for measuring the transmission of turbid, translucent or almost opaque materials where many standard techniques prove inadequate due to loss of light and sample scattering effects. This instrument serves us for basic characterization of photoactive nanomaterials.