This is a question commonly asked by HPLC analysts, particularly those relatively new to the technique. The range of currently available column dimensions means that a ‘one size fits all’ approach is not appropriate. The amount of mobile phase which should be flushed through a column before it is ready to use is usually expressed […]
Tag: Article
A Wish List for ICH Q2(R2), the Revision of the Guideline on Method Validation
The ICH guideline on method validation, Q2 (R1) [1], is currently being updated and I thought it might be interesting to put together a wish list for the changes that I would like to see in the new version. Rather than a wide-ranging treatment of all analytical method validation related issues, such as how it […]
5 Golden Rules for Effective (and Inspection Ready) OOS Investigations
The investigation of out of specification (OOS) results is a regulatory requirement in a GMP laboratory and these investigations are intensively scrutinised by health authority inspectors. The purpose of this article is to provide 5 ‘Golden Rules’ which will make sure that investigations are both effective and inspection ready. Rather than use the term OOS […]