Analytical Package Metadata

Chemex (NGR lake sediment, 1982 samples) AAS (8+4), CVAAS (Hg), LOI500, U, ISE(F)



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Analytical Package Description

Laboratory: Chemex Labs Limited

Chemex (National Geochemical Reconnaissance), lake sediment; atomic absorption spectroscopy (8 elements: Zn, Cu, Pb, Ni, Co, Ag, Mn, Fe + Cd; air-acetylene flame, decomp: 4HCl 1HNO3) + atomic absorption spectroscopy (arsenic; hydride evolution) + atomic absorption spectroscopy (molybdenum, vanadium (dl=5ppm); nitrous oxide-acetylene flame) + atomic absorption spectroscopy (mercury; cold vapour) + LOI at 500°C + neutron activation-delayed neutron counting (uranium - flux 8x1013 N/cm2/ s; dl=0.2ppm) + ion-selective electrode (fluorine)

Analytical Suites:

IndexName
1  Chemex (lake sediment) AAS (Zn, Cu, Pb, Ni, Co, Ag, Mn, Fe, Cd; air acetylene flame) – 6ml, held for 2hrs
2  Chemex AAS (As; hydride evolution) (details not specified explicitly)
3  AAS (Mo,V (dl=5); nitrous oxide acetylene)
4  Chemex (lake and stream sediments) CVAAS (Hg)
5  Chemex (lake and stream sediments) LOI
6  Chemex (lake sediment) NADNC(U)-flux 8x1013, d.l.= 0.2ppm
7  Chemex (lake sediments) ISE (F)

Analytical Methods:

IndexColumn NameSuite OrderMethod OrderSuite RepeatQuantityUnitsDetermination Limit
1  Zn_AAS    Zn  ppm 2  
2  Cu_AAS    Cu  ppm 2  
3  Pb_AAS    Pb  ppm 2  
4  Ni_AAS    Ni  ppm 2  
5  Co_AAS    Co  ppm 2  
6  Ag_AAS    Ag  ppm 0.2  
7  Mn_AAS    Mn  ppm 5  
8  Fe_AAS    Fe  percent 0.02  
9  Cd_AAS    Cd  ppm 0.2  
10  As_AAS    As  ppm 1  
11  Mo_AAS    Mo  ppm 2  
12  V_AAS    V  ppm 5  
13  Hg_AAS    Hg  ppb 10  
14  LOI    LOI  percent 1  
15  U_NADNC    U  ppm 0.2  
16  F_ISE    F  ppm 40  

Associated Analytical Sample Bundles:

IndexBundle IDBundle NameYear
1  210492     NGR-0076-1982-NL-LS-1   1983
2  210494     NGR-0077-1982-NL-LS-1   1983
3  210496     NGR-0078-1982-NL-LS-1   1983
4  210498     NGR-0079-1982-NL-LS-1   1983
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