. Author manuscript; available in PMC: 2015 Aug 24.

Published in final edited form as: Environ Sci Process Impacts. 2014 Feb;16(2):341–351. doi: 10.1039/c3em00570d

Table 2.

Amounts of metal sensitizers solubilized using reactant-assisted digestion protocols and artificial sweat extraction

Sensitizer	Reactant digestion^a (%)	Sweat extraction^b (%)
Be	0.29 ± 0.02	0.15 ± 0.01
Ni	0.14 ± 0.01	0.0013 ± 0.0003
Cr - total	6.08 ± 0.31	0.0024 ± 0.0000

Be = 0.01 M hydrochloric acid (pH 2.0, 20 °C); Ni = 0.1 M ammonium citrate/citric acid buffer (pH 4.4, 20 °C); Cr = concentrated nitric and hydrochloric acids (pH < 1, 95 °C).

Artificial sweat (pH 5.3, 36 °C) prepared as described by Harvey et al.²²