L. Pyy

Selective determination of toxicologically important arsenic species in urine by high-performance liquid chromatography–hydride generation atomic absorption spectrometry

E. Hakala, L. Pyy, 1992 .

Assessment of exposure to inorganic arsenic by determining the arsenic species excreted in urine.

L. Pyy, E. Hakala, L. Pyy, 1995, Toxicology letters.

Screening for vanadium in urine and blood serum by electrothermal atomic absorption spectrometry and D.C. plasma atomic emission spectrometry

E. Hakala, L. Lajunen, L. Pyy, 1984 .

Determination of vanadium in workplace air by DCP emission spectrometry.

E. Hakala, L. Lajunen, L. Pyy, 1983, American Industrial Hygiene Association journal.