✦ LIBER ✦
The determination of trace elements in aqueous media without preconcentration using a cryogenic hollow-cathode ion source
✍ Scribed by G.O. Foss; H.J. Svec; R.J. Conzemius
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 796 KB
- Volume
- 147
- Category
- Article
- ISSN
- 0003-2670
No coin nor oath required. For personal study only.
✦ Synopsis
The glow discharge in a hollow cathode containing 20-50 ~1 of an aqueous sample held at liquid-nitrogen temperature is used as a source of ions in a double-focussing mass spectrometer.
The device was tested with nine solutions containing an aggregate of seventy elements. Seven elements (F, P, S, SC, Mn, Ni, and Ta) could not be determined because of interferences. The remainder of the elements could be determined at various detection limits ranging from sub-ng ml-r to rcg ml-i. Mercury (32 pg