实验室现有的标准物质主要来自国际原子能机构(IAEA)和美国地质调查局(USGS),包括C、N、H、O、S等稳定同位素标准物质,详见下表。实验室采用国际上通用的两点校正的方法对所测定的样品进行校正,保证了结果的准确性。
标准物质名称 | δN-15 | δC-13 | δD | δO-18 | δ-S34 |
IAEA-N-1 | +0.4 |
|
|
|
|
IAEA-N-2 | +20.3 |
|
|
|
|
IAEA-N-3 | +4.7 |
|
| +25.6 |
|
USGS-32 | +180 |
|
| +25.7 |
|
USGS-34 | -1.8 |
|
| -27.9 |
|
USGS-35 | +2.7 |
|
| +57.5 |
|
USGS24 |
| -16 |
|
|
|
USGS43 | +15.3 | +45.7 | -50.3 | +14.11 | +10.46 |
NBS22 |
| -29.8 | -120 |
|
|
IAEA-600 | +1 | -27.5 |
| -3.48 |
|
IAEA-601 |
|
|
| +23.3 |
|
IAEA-602 |
|
|
| +71.4 |
|
IAEA-CH-7 |
| -31.8 | -100.3 |
|
|
IAEA-CO-1 |
| +2.5 |
| -2.4 |
|
IAEA-CO-8 |
| -5.8 |
| -22.7 |
|
NBS 19 |
| +1.95 |
| -2.2 |
|
NBS 22 |
| -29.8 | -120 |
|
|
IAEA-S-1 |
|
|
|
| -0.3 |
IAEA-S-2 |
|
|
|
| +22.7 |
IAEA-S-3 |
|
|
|
| -32.3 |
VSMOW |
|
| 0 | 0 |
|
SLAP |
|
| -428.0 | -55.5 |
|
GISP |
|
| -189.5 | -24.7 |
|