Report for Analytical Chemists
P. A. R.
SIGNAL AVERAGERS
a few samples we obtained informa tion on 79 elements including the rare gases, with a lesser number of elements determined on a broader range of samples. In the subse quent treatment, the rare gases will be omitted since they represent a special class of gaseous elements of
Table II. Results of Analyses
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Address City State _
Element
.Z'P.
Phone
Mean
Rel. No. of std. dev., % values
Range
Techniques*
Major Elements, Wt % NAA,XRF,Chem,ES
11 2
6.50-6.9 41.4,42.6
NAA
2.6
8
20.3-22.2
NAA,XRF,Chem,ES
4.1
12
11.5-13.2
NAA,XRF,Chem,ES,
7.3
5.0
10
6.5-7.6
NAA,XRF,Chem, ES, ID
0.170 0.134
6.3
11
Ρ
6.6
5s
Na
0.330
7.2
Ti
1.70
Κ
0.196
Mg
6.35
10
9
Cr
0.267
10
13"
AI
6.71
1.8
0
42.0
2
Si
21.4
Fe
12.5
Ca Mn
F
61.5 0.25
0.155-0.190
NAA,XRF,Chem,ES
0.120-0.140,(0.064)
SS,XRF,CHEM
12
0.290-0.370
NAA,XRF,Chem,ES, ID,AA
8.6
11
1.5-2.1
NAA,XRF,Chem, ES, ID
9.1
14*
0.150-0.220,(0.12)
NAA,XRF,Chem,ES, ID, 7
5.7-7.9
NAA,XRF,Chem,ES
0.208-0.303,(0.70)
NAA,XRF,Chem,ES, AA,GC
3.4
Trace Elements, PPM 60,63,(241) 2*
NAA,SS
12" φ
35-43,(63)
NAA,SS,XRF,ES
10.6-12.6,(6.3,26)
NAA,SS
39.4-52,(17) 3-3.86,(8)
NAA,SS,XRF,ES SS,MS,ID
2"
Se
39
6.7
Pr
12
7.2
Co Pb
44
7.8 7.9
14»
3.2
NAA.SS
0.246,0.259,(1.1)
3.6
Se
4»
Ni
195
8
11
164-220
NAA,SS,XRF,ES
Sm
17
9
14»
14.7-19,(8.05)
Er
14 3.6
9.2
8»
12.9-16,(8.4,29)
NAA,SS,ID NAA,SS,1D
9.4
5
3.21-4.0
SS,ES,GC
9.9
10»
1.4-1.96,(1) 270-423,(672)
NAA,SS,XRF,ID, MS,7 NAA,SS,XRF,ES,ID
Be U
1.68
Ba
357
11
15»
Y
129
11
8»
110-145,(180)
NAA,SS,XRF,ES
23
12
10»
20.2-29,(13.7)
NAA,SS,ID
11»
1.3-1.9,(4.2) 5.52-6.9,(2.0)
NAA,SS,ID
120-190 8.3-14,(6.7,20) 62-115,(50.7)
NAA,SS,XRF,ES,ID
Dy Lu Th Sr Yb Ce Ho
Organization
interest in solar wind studies re quiring specialized techniques for their measurement. Two general approaches to the determination of the elemental com position of lunar samples have been single element determination and multielement survey analysis. In
1.7 6.1
12 12
143
13
12» 14
12 88
13 14
15» 14»
14
9»
15 15 16
16» 10 17 10»
5.2
La Hf
33 13
Rb Zr
6.7 470
CIRCLE 1 3 8 O N READER SERVICE CARD
26 A • ANALYTICAL CHEMISTRY, VOL. 43, NO. 7, JUNE 1971
16
4.3-6.7,(2.65,15.7) 22-42.5,(82) 11.2-17.2 5.6-9.5 370-600,(872)
NAA,SS,XRF,ID,T
NAA,SS,ES,ID NAA,SS,XRF,ID NAA.SS NAA,SS,XRF,ES,ID NAA.SS NAA,SS,XRF,ES,ID NAA,SS,XRF,ES
