Cuvette holder tilted and perpendicular

This is a cuvette holder to measure absorption spectra in 10mm, 1mm, or thin cuvettes perpendicular or tilted by 30°. The 30° tilt increases the optical path length by about 15%. This is a good check to control if the acquired spectra are distorted as the measurement is operated in the detection limit of the setup or if the spectra are reliable. More details on the method will follow recently in the supporting information of one of our papers (link will be added when it is published).