About this item
Spectrum chromatography provides these tubings for general laboratory applications. The extra spring in the walls and the mechanical fatigue resistance provide a longer life in most general laboratory applications, as well as in peristaltic pumps.
- Both semirigid tubing, made of polyethylene, and flexible tubing, made of vinyl or silicone are available
- All types of tubings exhibit some gas permeability
Silicone tubing: Providing the longest service life and good chemical compatibility for aqueous solvents, its service life is about 150 h.
Vinyl tubing: It has the lowest per-foot cost of the available peristaltic pump tubings. It does not have good tolerance for organic solvents. Its service life is about 50 h. at 600 rpm and 275 h at 100 rpm. Cannot be autoclaved and should not be exposed to temperatures above 80 °C.
Polyethylene tubing: A 'semi-rigid' tubing material that can handle significantly higher pressures than either the vinyl or silicone tubing. While it is still a translucent material, it is significantly more opaque than silicone and it can be difficult to determine the position of either a meniscus or an air bubble. It is ideal for plumbing a low-pressure chromatography system. Since its thermal stability is lower, it should not be autoclaved, although it can be ethylene oxide sterilized.
at 600 rpm and 825 h at 100 rpm. Can be autoclaved a single time on a wet cycle without a significant reduction in its life.