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Table T8. Analytical conditions for major element analysis of glass beads. (See table notes.)
Element
line
|
Filter
|
Crystal
|
Peak angle
(°) |
Count time
(s)
|
BG 1 angle
(°) |
Count time
(s) |
BG 2 angle
(°) |
Count time
(s)
|
Detector
|
|
Na-Kα
|
Out
|
RX25
|
47,125
|
40
|
49,000
|
10
|
45,250
|
10
|
PC
|
|
Mg-Kα
|
Out
|
RX25
|
38,804
|
40
|
40,750
|
10
|
36,900
|
10
|
PC
|
|
Al-Kα
|
Out
|
PET
|
144,607
|
40
|
147,150
|
10
|
140,400
|
10
|
PC
|
|
Si-Kα
|
Out
|
PET
|
108,946
|
40
|
106,100
|
10
|
111,250
|
10
|
PC
|
|
P-Kα
|
Out
|
PET
|
89,280
|
40
|
91,350
|
10
|
87,200
|
10
|
PC
|
|
K-Kα
|
A 140
|
PET
|
50,632
|
40
|
49,200
|
10
|
|
|
PC
|
|
Ca-Kα
|
Out
|
PET
|
45,154
|
40
|
43,650
|
10
|
|
|
PC
|
|
Ti-Kα
|
Out
|
LiF1
|
86,155
|
20
|
85,240
|
10
|
87,120
|
10
|
SC
|
|
Mn-Kα
|
Out
|
LiF1
|
62,997
|
20
|
62,200
|
10
|
63,820
|
10
|
SC
|
|
Fe-Kα
|
Out
|
LiF1
|
57,535
|
20
|
58,180
|
10
|
56,900
|
10
|
SC
|
Notes: Analyses performed on the Supermini (Rigaku) X-ray fluorescence spectrometer. BG = background angle, PC = flow-proportioned counter, SC = scintillation counter.
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