The new 300SL liquid scintillation counter from LabLogic Systems does away with the need to have a standard source of radioactivity to compensate for the quench phenomenon for pure beta emitters
The 300SL is said to be the first commercially available instrument of its kind to use the absolute activity measurement method known as Triple to Double Coincidence Ratio (TDCR) technology, which eliminates the labour associated with setting up a standard source and the safety issues and expense of disposing of it at the end of the counter's useful life.
The 300SL is a compact instrument with an exceptionally small footprint (50cm wide x 60cm deep x 65cm high) that can easily be integrated into laboratories with limited bench space.
Even with its 60mm detector shield, it weighs less than 100kg, and it uses unique trays accommodating 7ml and 20ml vials that can be used in sample preparation instruments such as liquid handling stations or cell harvesters.
Optional features include alpha/beta separation, cooling-down to 15C, an active guard for background reduction and an external standard for traditional quench determination.
