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Microbiological Testing
Pharmaceuticals Efficacy Testing
Microbiological Assays
Bioburden Testing
Disinfectant testing
Our laboratories at Ely have specialised facilities for handling
pharmaceutical testing, including:
Pharmaceutical
Preservative Efficacy Testing
Pharmaceutical preparations with inadequate intrinsic anti-microbial
activity are likely to have anti-microbial preservatives added.
These additives are designed to prevent proliferation or limit
contamination by micro-organisms. The preservative qualities of
the preparation are checked during development by performance of
an Efficacy of Anti-microbial Preservation Test.
During the development of pharmaceutical preparations, it is
necessary to prove that the anti-microbial activity of the preparation
is adequate to prevent the problems that could occur from microbial
contamination or proliferation during storage.
The BP, EP and USP detail guidance on the performance and interpretation
of preservative efficacy testing.
Our in-house method, which is UKAS accredited, has been developed according to the EP. We can, however, perform
testing according to the BP or USP.
The types of preparations for testing range from powders through
to liquids and include topical creams, oral syrups and parenteral
solutions.
Microbiological Assays
Bioassays are used for the analysis of certain
antibiotics and vitamins by either turbidimetric or agar diffusion
techniques.
The turbidimetric assays have largely been developed in-house
for vitamin analysis and are applicable to a wide range of matrices,
containing either supplemented or natural forms. Products tested
include foods, soft drinks, multi-vitamin tablets and pharmaceutical
preparations.
The agar diffusion technique is primarily for certain antibiotics
used within the animal health industry, although other standard
procedures, listed within the various pharmacopoeias, can be performed.

Bioburden Testing
Products or components used in the pharmaceutical or medical
field require control of microbial levels during processing and
handling. Bioburden or microbial limit testing on these products
is used to verify that the requirements are being met.
Microbial limit testing of raw material as well
as finished pharmaceutical products can help to determine whether
the product complies with the requirements of the BP, EP
or USP. Bioburden testing of components can verifies that adequate
control measures have been employed during the preparation and
handling.
The satisfactory criteria for the microbial quality of pharmaceutical
preparations are specified in the relevant Pharmacopoeia; guidelines
are also given for the carrying out of testing.
The Medical Devices Agency advises on the microbiological safety
aspects of medical components.
All of our methods are UKAS accredited and
based on the EP.
Pharmaceutical product types range from
powder to oil and include creams, oral syrups and capsules – in
fact anything that is included in categories 2 - 4B of the EP.
Components range from small medical implants to devices used
for the delivery of pharmaceutical products and may be composed
of metal or plastic.
Click
here for Bioburden Information on our main web site
Disinfectant Testing
Disinfectants and antiseptics should
be assessed for their efficacy according to their use and application.
BS/EN methods have been developed so as to standardise testing
conditions and to yield a quantitative result on the performance
of a particular product tested under standard conditions. Eclipse
advises on the best regime of testing, helps with specific testing
needs and then performs the testing as relevant.
Methods used in our laboratories include:
BSEN 1040 :1997
BSEN 1276 :1997
BSEN 1650 : 1997
BSEN 1656 : 2000
BSEN 1657 : 2000
BSEN 13704 : 2002
BSEN 13697 : 2001
Click here for
further details of our disinfectant testing service.

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