By Kumar on Thursday, May 20, 2004 - 06:51 am:
My ELSD normally shows ZERO pressures drop (eluent entering is ODCB at 150C at 0.7mlpm used for HTGPC of PE). Overall column and inline filter dP at these condtions is around 200 psi (column at 150C) usually.
The ELSD alone is now showing a high pressure drop of 245 psi at 0.1mlpm and entire system pressure reads 750-800 psi.
How do I clear the line within the ELSD of any polymer? The system was unused for sometime.