What does "XP" mean in a Waters column description? - WKB50796

ENVIRONMENT

• 2.5-µm XP columns
• eXtended Performance Columns

ANSWER

eXtended Performance

ADDITIONAL INFORMATION

Waters XP columns (eXtended  Performance Columns) are packed with 2.5-µm particle packing. 

In addition, the XP hardware is considered "low dispersion" hardware.

The hardware can also withstand back pressures that are much higher than those with traditional HPLC columns.   

XP columns packed in a 4.6-mm internal diameter have a maximum back pressure rating of 9,000 psi (620 bar). 

XP columns packed in a 2.1-mm or 3.0-mm internal diameter have a maximum back pressure rating of 18,000 psi (1,034 bar). 

Related links:

UHPLC Column Capabilities Brochure (720005428en): http://www.waters.com/waters/library.htm?cid=511436&lid=134851280&locale=101

XBridge BEH XP 2.5um Columns Care & Use Manual (720004162en): http://www.waters.com/waters/support.htm?lid=134658716&type=USRM

XSelect CSH XP 2.5um Columns Care & Use Manual (720004164en): http://www.waters.com/waters/support.htm?lid=134658708&type=USRM

XSelect HSS XP 2.5um Columns Care & Use Manual (720004163en): http://www.waters.com/waters/support.htm?lid=134658713&type=USRM