Assertion: human hair | /r/HasAspect | good absorptive capacity
Facets:
value: for ni (ii)
type: OTHER
value: for burned
type: PURPOSE
Source sentences:
text: Powdered human hair has good absorptive capacity for Ni (II) and Cr (VI) ions at acidic pHs , and partially burned human hair  shows selective absorption of mercury (Hg2+) and silver (Ag+) ions over cobalt (Co2+), copper (Cu2+), and iron (Fe3+).