ELSA 1000 - Eluent Light Sterilization Accessory

Cambridgeshire based scientific equipment company, Cambridge Light Technology, unveiled their new UVC sterilization HPLC accessory, the ELSA 1000. The unit is designed to work with any HPLC system and is especially useful for those with light scattering detectors. The ELSA is designed to produce a continual sterilization of buffer solutions by the use of UVC without the requirement for the addition of toxic materials like Sodium Azide. The unit works insuring the exposure of the buffer to UVC light whilst ensuring the user is safely shielded. The unit can use clear plastic or glass bottles in the whole range up to a 2L capacity and has a built in stirrer to provide mixing and to ensure the sterilization effect covers the whole buffer.

The ELSA 1000 has been tested over a period of weeks to demonstrate the sterilization properties of the model and to determine the lifespan of PBS buffer, know to be a good bacterial growth source, in HPLC systems. Typically the normal recommended lifespan of PBS is 3 days, with or without sodium azide but the ELSA 1000 was found to prevent the formation of any visible particles up to the test limit of 28 day as against the standard PBS buffer that showed large particles forming within 2-3 days. The heating effect of the UVC source was found to be a maximum of 2°C over the entire test period.

Cambridge Light Technology

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