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Bondar Clegg (lake sediment) INAA (33 elements +Au + Wt)



Bondar Clegg, lake sediment; Instrumental Neutron Activation Analysis (Na, Sc, Cr, Fe, Co, Ni, Zn, As, Se, Br, Rb, Zr, Mo, Ag, Cd, Sn, Sb, Te, Cs, Ba, La, Ce, Sm, Eu, Tb, Yb, Lu, Hf, Ta, W, Ir, Th, U, Au, Wt)

General Methodology:

The weighed sample (generally 5 to 10 g) is irradiated for 20 minutes in a neutron flux whose approximate density is 5.3x10^11 neutrons/square cm/second. Counting is begun seven days after irradiation.  The counting time is somewhat variable (6 to 11 minutes) and is matrix dependent.  Counting is done on a germanium-lithium  co-axial counter.  The counting data are accumulated on a VAX computer and are subsequently converted to concentrations.  Numerous international reference samples are irradiated with each batch of routine samples.

Instrument: unstated

Sample material: solid

Sample weight: unstated


Analytical Technique:

Hierarchical classification

Technique >> Radiochemical methods >> Activation analysis >> Neutron activation >> INAA

Children

PGNAA | DGNAA


Analytical Decomposition:

Hierarchical classification

Decomposition >> None

Children

None


Analytical Methods:

IndexMethod OrderMethod IDQuantityDetection Limit
1  1038     Na_INA  0.02
2  1039     Sc_INA  0.2
3  1040     Cr_INA  20
4  1041     Fe_INA  0.2
5  1042     Co_INA  5
6  1043     Ni_INA  20
7  1044     Zn_INA  100
8  1045     As_INA  0.5
9  1046     Se_INA  5
10  10  1047     Br_INA  0.5
11  11  1048     Rb_INA  5
12  12  1049     Zr_INA  200
13  13  1050     Mo_INA  1
14  14  1051     Ag_INA  2
15  15  1052     Cd_INA  5
16  16  1053     Sn_INA  100
17  17  1054     Sb_INA  0.1
18  18  1055     Te_INA  10
19  19  1056     Cs_INA  0.5
20  20  1057     Ba_INA  50
21  21  1058     La_INA  2
22  22  1059     Ce_INA  5
23  23  1060     Sm_INA  0.05
24  24  1061     Eu_INA  1
25  25  1062     Tb_INA  0.5
26  26  1063     Yb_INA  2
27  27  1064     Lu_INA  0.2
28  28  1065     Hf_INA  1
29  29  1066     Ta_INA  0.5
30  30  1067     W_INA  1
31  31  1068     Ir_INA  50
32  32  1069     Au_INA  2
33  33  1070     Th_INA  0.2
34  34  1071     U_INA  0.2
35  35  1072     Wt_INA 

Associated Analytical Packages:

IndexPackage IDPackage Name
1  420     Bondar Clegg (NGR lake sediment) 33 element +Au + Wt
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