Learn More
Inductively Coupled Argon Plasma Atomic Emission Spectroscopy (ICP-AES) has been used to determine Pb, Zn and Cu levels in 47 exfoliated human teeth (all of which required extraction for orthodontic reasons). Lead concentrations for the group were 1.7 microg (g tooth mass)(-1) to 40.5 microg (g tooth mass)(-1). with a median of 9.8 microg (g tooth(More)
Laboratory investigation of bark extract from different age groups of Rhizophora mucronata (bakau kurap) showed that the tannin extract of barks of 40 years old trees had high reactivity towards formaldehyde as indicated by its stiasny number of 72. The bark also possessed high tannin and extractives'contents. Plywood manufactured from mersawa veneers using(More)
Anthocyanins are the typical red, purple and blue pigments of the higher plants, occurring in all parts of the plant but particularly in the flowers and fruit where they perform obvious biological functions in assisting cross-pollination and seed dispersal. Their presence is also of considerable importance to man in determining the attractiveness of certain(More)
  • 1