The Starna 1-G series are glass cuvettes that are usable from 334-2500nm. The most common size (universal for all spectrometers) is the 1-G-10 with a 10 mm path length. Short path lengths like the 1-G-1 are often used when dilution is not an option. Long path length such as 1-G-100 are often used in dilute applications such as water an...