9/B/Q/5 - Semi-micro Cell with lid, open top, with non-sealing PTFE cover

The purpose of Semi-Micro Type 9 cells is to reduce the sample volume necessary to make a measurement. The volume of a Semi-Micro cell is approximately 40% of an equivalent path length standard rectangular cell. Semi-Micro cells are available with either clear walls parallel to the light beam or non transmitting self masking black walls which improve sensitivity by eliminating stray light from measurements. The interior sample compartment width of Semi-Micro cells is reduced to 4mm, therefore it is essential to determine that the light beam from the instrument passes centrally through the sample compartment. This is especially important for long path length cells. Both the Type 9 and Type 9B are supplied with a PTFE cover.