TABLE 1

Composition of Different Tissues Expressed as Fractional Elemental Abundance

Soft tissue: ρ = 1.0 g × cm−3Skull (bone): ρ = 1.85 g × cm−3Brain: ρ = 1.03 g × cm−3
H = 0.101172H = 0.063984Mg = 0.002H = 0.11Mg = 0.0015Na = 0.0018
C = 0.111C = 0.278P = 0.07C = 0.13P = 0.0035Cl = 0.0024
N = 0.026N = 0.027S = 0.002N = 0.013S = 0.0018K = 0.0031
O = 0.761828O = 0.410016Ca = 0.147O = 0.74Ca = 0.000089

  • ρ = density.