Trace Elements in Coal

Coal is difficult to digest but neutron activation analysis (NAA) uses a direct measurement to avoid the problems such as incomplete dissolution or loss of volatile elements that are common to chemical techniques when looking for trace elements in coal.

Element Unit Limit
Boron (B) ppm 10
Fluorine (F) ppm 50
Aluminum (Al) % 0.5
Chlorine (Cl) ppm 20
Iodine (I) ppm 1
Manganese (Mn) ppm 1
Potassium (K) % 0.01
Titanium (Ti) % 0.01
Vanadium (V) ppm 1
Antimony (Sb) ppm 0.1
Arsenic (As) ppm 0.1
Barium (Ba) ppm 50
Bromine (Br) ppm 0.5
Cerium (Ce) ppm 0.1
Cesium (Cs) ppm 0.1
Chromium (Cr) ppm 1
Cobalt (Co) ppm 0.2
Europium (Eu) ppm 0.1
Hafnium (Hf) ppm 0.2
Iron (Fe) % 0.1
Lanthanum (La) ppm 0.5
Lutetium (Lu) ppm 0.1
Neodymium (Nd) ppm 1
Samarium (Sm) ppm 0.1
Scandium (Sc) ppm 0.1
Selenium (Se) ppm 0.5
Sodium (Na) % 0.01
Tantalum (Ta) ppm 0.1
Terbium (Tb) ppm 0.2
Thorium (Th) ppm 0.2
Tungsten (W) ppm 0.2
Uranium (U) ppm 0.5
Ytterbium (Yb) ppm 0.2
Zinc (Zn) ppm 50

trace elements in coal

We can combine our neutron activation analysis with other techniques to provide over 50 elements. Because we have element overlap from the different techniques, this package supplies research-grade analysis. Analysis for bottom ash and fly ash is also available. Contact us about customized packages.

Trace Elements in Coal