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Bondar Clegg (lake sediment) INAA – flux 1x10**11, counting 6-11 min (33 elements +Au + Wt)



Bondar Clegg, lake sediment; Instrumental Neutron Activation Analysis – flux 1x10**11, counting 6-11 minutes (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 (up to 40g) is irradiated epithermally for 20 minutes in a neutron flux with an approximate density of 1x1011 neutrons/square cm/second.  Counting begins 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  1187     Na_INA  0.02
2  1188     Sc_INA  0.2
3  1189     Cr_INA  20
4  1190     Fe_INA  0.2
5  1191     Co_INA  5
6  1192     Ni_INA  10
7  1193     Zn_INA  100
8  1194     As_INA  0.5
9  1195     Se_INA  5
10  10  1196     Br_INA  0.5
11  11  1197     Rb_INA  5
12  12  1198     Zr_INA  200
13  13  1199     Mo_INA  1
14  14  1200     Ag_INA  2
15  15  1201     Cd_INA  5
16  16  1202     Sn_INA  100
17  17  1203     Sb_INA  0.1
18  18  1204     Te_INA  10
19  19  1205     Cs_INA  0.5
20  20  1206     Ba_INA  50
21  21  1207     La_INA  2
22  22  1208     Ce_INA  5
23  23  1209     Sm_INA  0.1
24  24  1210     Eu_INA  1
25  25  1211     Tb_INA  0.5
26  26  1212     Yb_INA  2
27  27  1213     Lu_INA  0.2
28  28  1214     Hf_INA  1
29  29  1215     Ta_INA  0.5
30  30  1216     W_INA  1
31  31  1217     Ir_INA  50
32  32  1218     Au_INA  2
33  33  1219     Th_INA  0.2
34  34  1220     U_INA  0.2
35  35  1221     Wt_INA 

Associated Analytical Packages:

IndexPackage IDPackage Name
1  434     Bondar Clegg / Becquerel (NGR lake or stream sediment) INAA-flux 1x10**11 (33 elements, Au + Wt)
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