dear Natale, BTW, did you ever make a chemical analysis of your capillaries?
I tried once, and as far as I remember, I remained with the terrible doubt that it was just bottle glass... An alternative are CA (cellulose acetate) capillaries which really contain only first row elements and can easily be fabricated with very thin walls. best miguel On 21 Apr 2008 at 16:09, Natale Perchiazzi wrote: > > > Dear All, > Anyone knows about capillaries giving a distinctly lower background than the > ones (borosilicate) > I presently use? Your suggestions on materials and where to get them are > welcome. > > > best regards Natale Perchiazzi > > > > > > Inviato da Yahoo! Mail. > La casella di posta intelligente. -- Miguel Gregorkiewitz Dip Scienze della Terra, Università via Laterina 8, I-53100 Siena, Europe fon +39'0577'233810 fax 233938 email [EMAIL PROTECTED]
