Producers of "in-house silica" for column manufact

[rick1112]

Hi
Just was little curious...I would like to know which all “column manufacturing companiesâ€

[Uwe Neue]

Not too many...

Waters is one of the manufacturers that synthesizes its own silicas and hybrid packings.

[rick1112]

hi
thanks for the reply...

wht about Luna (phenomenex), ACE and Grace vydac columns do any one have in-house silica??

[Uwe Neue]

Phenomenex is not a primary manufacturer and does not make the silica for Luna.

[rick1112]

Phenomenex is not a primary manufacturer and does not make the silica for Luna.

...thinking about it...does it matter if a company manufactures "in-house" silica or get it from some other company???

[Uwe Neue]

It is a big deal from the standpoint of process control and ultimately the reproducibility of a packing. Only if you understand ALL the subtleties of the ENTIRE process can you make a very reproducible packing. This has been demonstrated several times during my career, and I can support it with data.

[Bryan Evans]

[quote="rick1112"]Hi
Just was little curious...I would like to know which all “column manufacturing companiesâ€