USP Residual Solvent Liner

Question

Hi, I'm looking for the USP residual solvent chapter testing. Any Agilent part number? Regards, Jose Garcia

Dr. Know · Accepted Answer

Hi Jose, USP 467, the residual solvents method, is a headspace method, so you don't need a liner dependent on your system. If the injection volume is applied by syringe any single-tapered liner will do. Glass wool is not needed for gaseous injections. Without knowing the system you use we cannot give you a part number. Regards, Norbert

alfausett · Answer

Hi Jose, What type of inlet do you have? You will need an inlet liner unless your inlet is a Volatiles Interface. For USP 467, it is more common to use a Split/Splitless inlet. In that case, we generally recommend a narrow ID liner for low split ratios (Class 1, 2) and a standard split liner for larger splits (Class 2, 3). A recently released app note done on the 7697A/8890 recommends p/n 5181-8818 ( https://www.agilent.com/cs/library/applications/application-residual-solvents-8890-GC-5994-0442en-agilent.pdf ) Another one done several years ago on 7697A/7890A recommends the UI low pressure drop, p/n 5190-2295, although the chemist removed the glass wool. ( https://www.agilent.com/cs/library/applications/5991-1834EN.pdf ) Best, Abbey

USP Residual Solvent Liner

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