Questions & AnswersSign in to Start a DiscussionStart a DiscussionActive UHPLC Pumps Topics2RepliesFri Aug 08 2014 Agilent 1290 quaternary pumpUHPLC Pumps Forums3 ResultsSort ByPost DateLast Reply Fri Aug 08 2014Updated byNMR guy Agilent 1290 quaternary pump Fri Feb 07 2014Asked byIS A1290Binary pump_G4220A error Fri Jan 17 2014Asked byoksana Writing of purge valve Page 1 of 1 1Ask a Question Equipment you are asking about (if applicable)SubjectEnter a question about troubleshooting, PM, buying advice and moreā¦Sign in to Submit your DiscussionSubmit your Discussion×About