@article {Mattraw:1954:0003-7028:117, author = "Mattraw, H.C. and Patterson, R.E. and Pachucki, C.F.", title = "Mass Spectrometer Analyses Using a Viscous Leak", journal = "Applied Spectroscopy", volume = "8", number = "3", year = "1954", abstract = "Suitable dimensions of capillaries have been given which will provide continuous sampling of gas streams at 100-1000 mm(Hg). Methods of calibration of these capillaries (viscous leaks) for mass spectrometer analyses are presented.", pages = "117-120", url = "http://www.ingentaconnect.com/content/sas/sas/1954/00000008/00000003/art00003", doi = "doi:10.1366/000370254774634521" }