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GC Instrument Validation - 2005/11/28 18:21
Anonymous, As per my previous post and Jim's, if you (or your very rich company!) feel that you get good value out of the Agilent "validation" carry on spending the money. BUT please ask yourself what you actually get out of it. In your last sentence you say the EPC unit had given a little trouble so you had identified it as faulty (but not bad!!!) before the engineer arrived so what good did the validation do?
Also, what point is a "standard" column and components you are not yourself analysing. Your analysis will be using a non-standard column, a liner that you may have forgotten to change and a syringe that has been used for other samples. If you want to check reproducibility in the real world inject the same vial of your sample 10 times and check that - much more important than checking oven temperature being withing 0.01°C of that set.
Chromatography is in most cases self calibrating and anyone with a modicum of experience can see when things are going wrong. Correcting them may not be so easy - THAT is when you may need an engineer or applications specialist.
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