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LATEST NEWS

Recertification according to Council Regulation (EC) No 834/2007 and Council Regulation (EC) No 889/2008 (BIO certificate)

Establishment of further storage facility (540 m²)

Implementation of an operating data logging and measurement data acquisition

Certification of an energy efficiency system

Restructuring the hall exterior and roof of the warehouse

Online launch of our new company website after extensive redesign

Renewal of the fire alarm system

Implementation of a new ERP system

Successful Bio Certification

Conversion of the plant control system

QUALITY MANAGEMENT


HPLC-Analyses – JASCO HPLC UV/VIS


HPLC, also called high performance liquid chromatography, is a technique in analytic chemistry used not only to separate the components in a mixture, but also to identify and to quantify each component.
We carry out HPLC analyses with UV/VIS detection (normal phases and reversed phases).


Principle of operation

During this chromatographic separation process, the substance to be analysed, in combination with a solvent, the mobile phase (also called “eluent”), is pumped through a so-called separation column containing the stationary phase.

If a component of the substance to be analysed strongly interacts with the stationary phase, it remains in the column for a relatively long time. However, if it interacts weakly with the stationary phase, it will leave the column earlier. Depending on the strength of these interactions, the components of the substance appear at different times (retention times) at the end of the separation column, where they can be detected by a suitable detector afterwards. For the reverse phase, the retention time of a substance depends on the resting time in the stationary phase (solvent film around the alkyl chains of the modified silica gel). The rate-determining step is the desorption into the mobile phase.



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ACU PHARMA und CHEMIE GmbH
Am tiefen Graben 6, DE-99510 Apolda
Phone: +49 (0)3644 5058-0
Fax:     +49 (0)3644 5058-99
www.acu-pharma.com
contact(at)acu-pharma.com