USGS实验室同位素标样
- 型号:USGS40
- 产地:中国大陆
- 供应商:天津欧捷科技有限公司
- 供应商报价:电议
- 标签:USGS实验室同位素标样,生物试剂,标准物质,供应USGS实验室同位素标样,天津欧捷科技有限公司
| USGS24 | graphite | 0.8 g | δ13C = —16.05 ‰ |
| USGS25 | ammonium sulfate | > 0.6 g | δ15N = —30.41 ‰ |
| USGS26 | ammonium sulfate | > 0.8 g | δ15N = +53.75 ‰ |
| USGS32 | potassium nitrate | 0.8 g | δ15N = +180 ‰ δ18O = ~+25.5 ‰ |
| USGS34 | potassium nitrate | 0.85 g | δ15N = —1.8 ‰ δ18O = ~—28 ‰ |
| USGS35 | sodium nitrate | 0.6 g | δ15N = +2.7 ‰ δ18O = ~+57 ‰ |
| USGS40 | L-glutamic acid | 2 g | δ15N = —4.52 ‰ δ13C = —26.39 ‰ |
| USGS41a | L-glutamic acid enriched in 13C & 15N | 0.5 g | δ15N = +47.55 ‰ δ13C = +36.55 ‰ |
| USGS41 | L-glutamic acid enriched in 13C & 15N | 0.5 g | δ15N = +47.57 ‰ δ13C = +37.63 ‰ |
| USGS42 | Tibetan human hair powder (< 100 mesh) | 0.5 g | δ2H = —72.9 ‰ δ18O = +8.56 ‰ δ15N = +8.05 ‰ δ13C = —21.09 ‰ δ34S = +7.84 ‰ |
| USGS43 | Indian human hair powder (< 60 mesh) | 0.5 g | δ2H = —44.4 ‰ δ18O = +14.11 ‰ δ15N = +8.44 ‰ δ13C = —21.28 ‰ δ34S = +10.46 ‰ |
