Table T2. Recovery ratio of acid digestion procedure using two reference materials (JA-3 and JMS-1).
| JA-3 | JMS-1 | ||||
|---|---|---|---|---|---|
|
Recovery (%) |
Measurement error (%) |
Recovery (%) |
Measurement error (%) |
||
| Major elements: | |||||
| Al | 100 | 3.4 | 86 | 4.4 | |
| Ca | 94 | 1.0 | 92 | 3.9 | |
| Fe | 95 | 2.1 | 90 | 1.3 | |
| K | 94 | 2.8 | 87 | 0.9 | |
| Mg | 98 | 0.5 | 93 | 2.0 | |
| Na | 90 | 2.4 | 88 | 2.4 | |
| Minor elements: | |||||
| Ba | 97 | 1.4 | 95 | 4.9 | |
| Mn | 98 | 2.3 | 92 | 0.9 | |
| Sr | 96 | 0.9 | 91 | 2.9 | |
| Zn | 100 | 1.0 | 90 | 0.9 | |
| Cr | 98 | 1.3 | 95 | 1.7 | |
| Li | 90 | 2.5 | 90 | 2.3 | |
Measurement errors: relative standard deviation = 1σ, n = 3.
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