Table 2 Normalized major element contents of the glass standards (ED-XRF) (wt%)
Na2O | MgO | Al2O3 | SiO2 | P2O5 | K2O | CaO | Fe2O3 | PbO | |
|---|---|---|---|---|---|---|---|---|---|
Corning B | |||||||||
Average | 15.8 | 1.1 | 4.6 | 62.8 | 0.8 | 1.0 | 8.7 | 0.4 | 0.6 |
RSD % | 14.0 | 63.0 | 10.0 | 1.0 | 8.0 | 4.0 | 2.0 | 7.0 | 4.0 |
Reference composition wt% | 17.00 | 1.03 | 4.36 | 61.60 | 0.82 | 1.00 | 8.56 | 0.34 | 0.61 |
Absolute error wt% | − 1.20 | 0.07 | 0.24 | 1.20 | − 0.02 | 0.00 | 0.14 | 0.06 | − 0.01 |
Relative error % | 7.06 | 6.80 | 5.50 | 1.95 | 2.44 | 0.00 | 1.64 | 17.65 | 1.64 |
Corning C | |||||||||
Average | 1.6 | 2.5 | 0.7 | 35.7 | 0.1 | 2.6 | 4.8 | 0.3 | 35.3 |
RSD % | 58.0 | 60.0 | 50.0 | 4.0 | 19.0 | 15.0 | 10.0 | 14.0 | 6.0 |
Reference composition wt% | 1.07 | 2.76 | 0.87 | 34.90 | 0.14 | 2.84 | 5.07 | 0.34 | 36.70 |
Absolute error wt% | 0.49 | − 0.29 | − 0.13 | 0.81 | 0.01 | − 0.21 | − 0.28 | − 0.03 | − 1.39 |
Relative error % | 45.36 | 10.69 | 14.90 | 2.33 | 4.29 | 7.51 | 5.61 | 7.55 | 3.79 |
Corning D | |||||||||
Average | 1.2 | 4.8 | 5.0 | 54.6 | 5.9 | 12.6 | 13.6 | 0.4 | 0.4 |
RSD % | 91.8 | 11.2 | 2.8 | 1.8 | 3.5 | 1.6 | 1.1 | 1.5 | 1.3 |
Reference composition wt% | 1.20 | 3.94 | 5.31 | 55.24 | 3.93 | 11.30 | 14.80 | 0.52 | 0.48 |
Absolute error wt% | 0.0 | 0.9 | − 0.3 | − 0.6 | 2.0 | 1.3 | − 1.2 | − 0.1 | − 0.1 |
Relative error % | 0.00 | 21.83 | 5.84 | 1.16 | 50.13 | 11.50 | 8.11 | 23.08 | 16.67 |