Experience of Testing Ninhydrin-Positive Substances using Ph.Eur. Monographs
By Frank Judge, Consultant Chemist – Chromatography, Butterworth Laboratories The main complication with the analysis of amino acids and related…
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The last 30 years of residual solvent analysis at Butterworth Laboratories
Frank Judge is a consultant chemist at Butterworth Laboratories Limited, an independent contract testing laboratory in the UK. He has…
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The importance of excipients testing
An Active Pharmaceutical Ingredient (API) is the term used to refer to the biologically active component of a drug product,…
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Butterworth Labs on moving toward laboratory sustainability
Over recent years the importance for all businesses to reduce their impact on the environment has come into sharp focus.…
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Covid-19: Planning for the future and not just a second wave
By David Hawkins, managing director. In mid-July, I started looking back at the lessons we learnt keeping our business running…
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Hosting client audits and regulatory inspections from home amid the Covid-19 pandemic
by Stuart Davey BSc MRQA. In early 2020, Butterworth Laboratories Ltd (Butterworth) were eagerly anticipating a letter from the MHRA…