Acid predigestion as a slurry pretreatment for the determination of Ca, Cu, K, Mg, Na and Zn in human scalp hair by flame atomic absorption/emission spectrometry with a high-performance nebulizer

1. Bermejo-Barrera, P.
2. Moreda-Piñeiro, A.
3. Moreda-Piñeiro, J.
4. Bermejo-Barrera, A.