smallest particle stationary phase for LC

[chembot]

What is the current, commercially available smallest particle diameters for

A: reversed phase LC
B: ion exchange LC


Also, with these values in mind, what are pressure limits of the respective pumps?

what are smallest column lengths with these particle diameters?

thanks!

[gemm]

take a look at the internet sites of lc vendors:

http://www.waters.com/watersdivision/Co ... C&WT.svl=1

http://www.chem.agilent.com/Scripts/PDS.asp?lPage=6088

you will find particel size for nano rp-lc down to 1.7µm and column size of 75µmx5mm

[Uwe Neue]

At Waters, you will find UPLC, which uses porous particles of 1.7 micron at pressures up to 1000 bar (15000 psi). Standard column lengths and diameters are 5 and 10 cm, with 2 mm and 1 mm i.d. Four different column chemistries are available. Alternatively, if you are interested in very slow flow rates, the nanoACQUITY system would be your choice.

What is your interest?