Analytical Suite Metadata

Becquerel INAA (34 elements, NGR, 1990s)



The samples were analysed for 34 trace elements by instrumental neutron activation analysis (INAA).  The analyses were done by Becquerel Laboratories in Mississauga, Ontario.

Distinguishing characteristics:

  • Ag detection limit: 2 ppm
  • Cd detection limit: 5 ppm
  • Ce detection limit 5 ppm
  • Ir detection limit 50 ppb

This suite is virtually identical to the “Becquerel INAA (34 elements, New Brunswick, Prairies)” suite, except for trivial differences in the detailed description.

It is very similar to the “Becquerel (lake and stream sediment) INAA-(33 elements, Au + Wt) Yb d.l.=1 ppm” suite, with which it shares an identical detailed description.  The only differences are the detection limits for Cd (5 ppm vs. 2 ppm) and Ir (50 ppm vs. 5 ppm).

General Methodology:

Weighed and encapsulated samples are packaged for irradiation along with internal standards and international reference materials.  Samples and standards are irradiated together with neutron flux monitors in a two megawatt pool type reactor.  After a seven day decay period, samples are measured on a high resolution germanium detector.  Computer control is achieved with a Microvax II computer.  Typical counting times are 500 seconds.

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  3393     Ag_INA  2
2  3394     As_INA  0.5
3  3395     Au_INA  2
4  3396     Ba_INA  50
5  3397     Br_INA  0.5
6  3398     Cd_INA  2
7  3399     Ce_INA  5
8  3400     Co_INA  5
9  3401     Cr_INA  20
10  10  3402     Cs_INA  0.5
11  11  3403     Eu_INA  1
12  12  3404     Fe_INA  0.2
13  13  3405     Hf_INA  1
14  14  3406     Ir_INA  5
15  15  3407     La_INA  2
16  16  3408     Lu_INA  0.2
17  17  3409     Mo_INA  1
18  18  3410     Na_INA  0.02
19  19  2277     Ni_INA  10
20  20  3412     Rb_INA  5
21  21  3413     Sb_INA  0.1
22  22  3414     Sc_INA  0.2
23  23  3415     Se_INA  5
24  24  3416     Sm_INA  0.1
25  25  3417     Sn_INA  100
26  26  3418     Ta_INA  0.5
27  27  3419     Tb_INA  0.5
28  28  3420     Te_INA  10
29  29  3421     Th_INA  0.2
30  30  3422     U_INA  0.2
31  31  3423     W_INA  1
32  32  2276     Yb_INA  1
33  33  3425     Zn_INA  100
34  34  3426     Zr_INA  200
35  35  3427     Wt_INA 

Associated Analytical Packages:

IndexPackage IDPackage Name
1  148     Becquerel (NGR) INAA (34 elements, Au + Wt)
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