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smallest particle stationary phase for LC

http://www.chromforum.org/viewtopic.php?t=2827

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smallest particle stationary phase for LC

Posted: Wed Oct 26, 2005 2:41 am
by 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!

Posted: Wed Oct 26, 2005 10:05 am
by 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

Posted: Wed Oct 26, 2005 4:20 pm
by 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.

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