Standard rectangular macro cuvettes made from Spectrosil quartz for accurate readings.

• Fully heat-fused construction
• Four polished windows
• Two cover types available: Flat lid and stopper

Due to the fully heat-fused construction (no intermediate materials or adhesives), and careful annealing to remove any strain, there is no optical or physical distortion of the two optically polished windows. Flat lids and stoppers are made of polytetrafluoroethylene (PTFE). Stoppered cells provide a more suitable seal for volatile liquids.