Link to USGS Home Page

The Chemical Analysis of Argonne Premium Coal Samples

Edited by Curtis A. Palmer
U.S. Geological Survey Bulletin 2144

Determination of 29 Elements in 8 Argonne Premium Coal Samples by Instrumental Neutron Activation Analysis

By Curtis A. Palmer

Table 3. Long-lived (>10 hours) readionuclides.

[Table modified from Palmer and Baedecker (1989). d, day; h, hour; yr, year; µg/g micrograms per gram]

Element Indicator radionuclide Half-life Preferred gamma (g) energy Limit of determination
(g/g except %
as indicated)		 Potential spectral interferences
Radionuclide Energy Radionuclide Energy
Na 24 Na 15.0 h 1,368.9 10        
      2,753.9          
K 42 K 12.4 h 1,524.7 .01%        
Sc 46 Sc 84 d 1,120.5 .01        
Cr 51 Cr 27.8 d 320.1 .5 177 Lu 321.3 147 Nd 319.4
Fe 59 Fe 45.6 d 1,099.3 50 182 Ta 1,289.1    
      1,291.5 75        
Co 60 Co 5.3 yr 1,173.2 .2        
      1,332.5          
Ni 58 Co 71.3 d 810.8 .55 152 Eu 810.8    
Zn 65 Zn 245 d 1,115.4 1 160 Tb 1,115.1    
As 76 As 26.4 h 559.0 .1        
Se 75 Se 120.0 d 264.6 1 182 Ta 264.1    
Br 82 Br 35.4 h 554.3 .5        
      776.5 .5        
Rb 86 Rb 18.7 d 1,076.8 5        
Sr 85 Sr 64.0 d 514.0 50        
Sb 122 Sb 67.2 h 564.0 .05        
  124 Sb 60.0 d 1,691.0 .1        
Cs 134 Cs 2.1 yr 795.8 .1        
Ba 131 Ba 12.0 d 476.3 50        
La 140 La 40.2 h 1,596.6 .02        
      487.0 .05        
Ce 141 Ce 32.5 d 145.4 .5 154 Eu 145.6    
Nd 147 Nd 11.1 d 531.0 2        
Sm 153 Sm 46.8 h 103.2 .5 239 Np 103.7    
Eu 152 Eu 12.7 yr 779.1 .04        
      1,408.1 .01        
Tb 160 Tb 72.1 d 298.6 .05 233 Pa 299.9    
      1,178.1 .1        
Yb 175 Yb 101.0 h 396.1 .1 147 Nd 398.2 233 Pa 398.2
      282.6 .2        
Lu 177 Lu 6.7 d 208.4 .01 239 Np 209.7    
Hf 181 Hf 42.5 d 482.2 .1        
      133.1 .05        
Ta 182 Ta 115.1 d 1,221.3 .02        
      1,189.2 .03        
W 187 W 24.0 h 479.5 .1        
      685.7 .1 147 Nd 685.9    
Th 233 Pa 27.0 d 311.9 .1        
U 239 Np 2.3 d 277.6 .5        
previous next

[ Contents ]

Created by the EERT WWW Staff.

[an error occurred while processing this directive]