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RPS provides identification of unknown

organic compounds appearing

in any kind of chromatogram for

Pharmaceutical testing:


Impurity profiling


Unknown peaks occurring during

method development


Unknown peaks occurring during

API, batch release and stability


Swift identification allows for critical

situations to be addressed, avoiding

potentially high additional costs and

use of resources. This is especially

useful in cases where it is not possible

to conclude whether the unknown

compound is present in the product.

Proper identification of substances

coming from contaminations is a

precious tool for successful completion

of the investigations and implementation

of effective CAPAs.

As compliance requirements become

tighter, our innovative approach offers

the unique opportunity to have a service

which is readily available, and where

results are provided in five working

days. This significantly increases the

possibilities for Quality Assurance teams

to focus on complicated situations.

RPS is committed to providing tailored

solutions to client specific needs, while

avoiding activities that may not be

necessary for a given project.

We consider absolute confidentiality

to be a top priority in our business;

strict confidence is core part of our

professional ethics.

Our analytical team work to the highest

possible quality standards , and provide

a competitive service with a prompt

turnaround of results.


Unknown peaks in chromatograms for the analysis of batch release or stability testing is not unusual.

Different compounds can appear for various reasons, such as laboratory contaminations, instrumental-

related peaks, leachables and impurities.


RPS provide elemental composition

in five working days allowing for

critical problems deriving from Out

of Specification unknown peaks to

be addressed.


Our policies focus specifically

on guaranteeing maximum

confidentiality for our customers’

sensitive information.


Our scientific approach to

qualitative analysis includes robust

quality criteria, set to the highest

quality standards to confer high

levels on confidence to results.


Accurate Mass Measurement:

Bruker Maxis UHR QToF

NMR Experiments:

500 Mhz Bruker Avance III

Call on +44 (0)1462 480 400