1. Neptunium determination by dc glow discharge mass spectrometry (dc-GDMS) in Irish Sea sediment samples;Aldave de las Heras;Journal of Analytical and Atomic Spectrometry,2002
2. Detection of trace radioisotopes in soil, sediment and vegetation by glow discharge mass spectrometry;Betti;Fresenius’ Journal of Analytical Chemistry,1996
3. CITAC & EURACHEM, 2002. Guide to quality in analytical chemistry. An aid to accreditation www.eurachem.ul.pt/guides.
4. EML Procedures Manual, HASL-300;Chieco,1997
5. EURACHEM, 1998. The fitness for purpose of analytical methods. A laboratory guide for method validation and related topics www.eurachem.ul.pt/guides.