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New Sterilisation Technology for HPLC Systems
Cambridge Light Technology
unveiled their new UVC sterilisation HPLC accessory, the E.L.S.A r/k1000. The unit is designed to work with any HPLC system and is
especially useful for those with light scattering detectors. The E.L.S.A is
designed to produce a continual sterilisation 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 sterilisation effect covers the whole buffer.
The E.L.S.A model r/k1000 has been tested over a period of weeks to demonstrate the sterilisation 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 three days, with or without sodium azide but the E.L.S.A r/k1000 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. For an aqueous HPLC system the unit will pay for itself by saving a single column from contamination by bacterial growth.
For more information visit
www.cambridgelighttech.co.uk
Advertise in our next issue... contact us on +44 (0)1727 855574,
info@intlabmate.comor visit
www.chromatographytoday.com
New Metal GC Columns Deliver Higher Reproducibility for Petrochemical Testing
Phenomenex introduces the ZebronTM ZB-1XT SimDist - a metal GC column specially
designed for simulated distillation analyses in petrochemical applications. The new column features Phenomenex's unique Glass InfusionTM technology, which ensures consistent phase coating and reproducibility. Zebron ZB-1XT SimDist are rugged and provide documented efficiency gains of up to 70 percent over other comparable metal columns on the market. Every column is individually tested to guarantee quality. Simulated boiling point methods are commonly used in petrochemical analysis to determine the range of hydrocarbons in a sample. These high-temperature distillation methods require resolution greater than 2.0 of C50 and C52, posing a challenge for most columns used in this application. The new Zebron ZB-1XT SimDist column exhibits less than 3.5 percent loss in resolution after 90 hours at 430° C. "Traditional metal GC columns used in these applications have exhibited uneven stationary phase bonding, which negatively affects performance and reproducibility," explained Kory Kelly, GC product manager for Phenomenex. "Our proprietary bonding technology ensures consistent quality and each of our new columns is tested individually, rather than in batches."
For more information, email
info@phenomenex.com
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