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Table T6. Quantitative conditions for XRF analyses. (See table note.)

Oxide
(wt%)
Line Voltage
(kV)
Intensity
(mA)
Crystal Detector Peak angle
(°2θ)
Count time (s)
Peak Background
Na2O K-alpha 50 4.00 RX25 PC 47.138 40 20
MgO K-alpha 50 4.00 RX25 PC 38.828 40 20
Al2O3 K-alpha 50 4.00 PET PC 144.644 40 20
SiO2 K-alpha 50 4.00 PET PC 108.992 40 10
P2O5 K-alpha 50 4.00 PET PC 89.429 40 20
K2O K-alpha 50 4.00 PET PC 50.684 40 10
CaO K-alpha 50 4.00 PET PC 45.191 40 10
TiO2 K-alpha 50 4.00 LiF1 SC 86.143 20  
MnO K-alpha 50 4.00 LiF1 SC 62.999 20 20
Fe2O3 K-alpha 50 4.00 LiF1 SC 57.532 20 10

Note: PC = flow-proportioned counter, SC = scintillation counter.

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