Flexible cuvettes.

摘要

Flexible cuvettes are known for testing for DNA by allowing polymerase chain reaction amplification to take place therein. However, with these cuvettes, there is a risk that amplified DNA may leak into the atmosphere and contaminate the unused cuvettes in the vicinity. A further risk is that temporary seals may leak flow prematurely to the rest of the cuvette. Described herein is a cuvette (110) and a method for sealing off a passageway (121) extending from, e.g., an access port (122) in the cuvette (110) with closure means (184, 200) to ensure a complete seal is achieved. The closure means (184, 200) is joined to the rest of the cuvette (110) along a hinge line (190) which passes through the passageway (121) so that application of the closure means (184, 200) by bending the cuvette (110) about the hinge line (190) pinches off the passageway (121).