1. Bettinelli M, Beone GM, Spezia S, Baffi C (2000) Determination of heavy metals in soils and sediments by microwave assisted digestion and inductively coupled plasma emission spectrometry analysis. Anal Chim Acta 424:289–296
2. Canepari S, Bruno P, Cardarelli E, Del Cavaliere C, Ghighi S (2000) Determination of metals in thoracic fraction of ambient particulate matter. Ann Chim 90:645–652
3. Canepari S, Cardarelli E, Pietrodangelo A, Giuliano A (2005a) Determination of soluble ions and metals in airborne particulate matter by a new two-step sequential leaching procedure. Part A: Experimental design and optimisation. Talanta, 2005, in press
4. Canepari S, Cardarelli E, Pietrodangelo A, Strincone M (2005b) Determination of soluble ions and metals in airborne particulate matter by a new two-step sequential leaching procedure. Part B: Validation on twin field samples. Talanta, 2005, in press
5. EMEP/CCC Report 1/95NILU ref. O-7726 (1996) Manual for sampling and chemical analysis. Norwegian Institute for Air Research (NILU), Oslo, Norway