A quick and inexpensive service for checking sample purity ..

Warwick Analytical Service (www.warwickanalytical.co.uk/chn.htm), the analytical division of Exeter Analytical (UK) Ltd., is able to investigate and precisely measure the percentage Carbon, Hydrogen and Nitrogen content of samples with an accuracy of better than +/- 0.3% for a wide range of sample types.

CHN analysis provides a quick and inexpensive method to check sample purity, and in conjunction with mass spectrometry and NMR data, can be used to characterise a compound.

Samples (0.5 - 2.0 mg per analysis) are analysed using two Exeter Analytical CE 440 instruments. This model of analyser has been demonstrated to be number one in terms of accuracy and precision in recent independent studies performed by the Royal Society of Chemistry (Micro Analytical Group). All samples are weighed using the latest ultra microbalances. Warwick Analytical Service's method for the determination of Carbon, Hydrogen and Nitrogen is covered by UKAS ISO17025 accreditation.

Warwick Analytical Service (WAS) have the experienced staff and instrumentation to provide a fast, accurate and precise CHN service for a wide range of sample types, including polymers and volatile samples. Analysis of air sensitive compounds can be reliably performed as the sample is prepared and completely sealed in a high specification glove box prior to analysis. Warwick Analytical Service is a company dedicated to providing analytical excellence at a realistic cost. Through experienced staff, the latest analytical instrumentation and working closely with clients - WAS has established a strong reputation for informed personal service and delivering top quality data on time.

Operating from a dedicated facility approved to BSI ISO 9001-2000 and with a wide range of analytical techniques accredited to UKAS ISO17025 - WAS is the trusted CHN sample analysis service provider for a growing number of UK and international businesses involved with university research, contract research, pharmaceutical analysis, fuel analysis, environmental monitoring and polymers.