咨询热线
13820734559
QQ：1454116470
天津欧捷科技代理瑞士santis,英国labco,美国alpha,德国元素elementar,美国thermo等品牌耗材
咨询热线
13820734559
QQ：1454116470
Inorganic , Pure Substance
Unit Size: 0.5g
International Chemical Safety Card (ICSC): ICSC_0184
USGS32 is a dried salt of potassium nitrate, KNO3 which was prepared in 1992 by J. K. Böhlke, U.S. Geological Survey [1] from Baker potassium nitrate (3190-01, lot #D40117 and 3190-05, lot #19162) and Cambridge Isotopes potassium nitrate (5% 15N, lot #F 2685). This salt material was prepared by dissolving and re-crystallizing a mixture of normal reagent salt and 15N enriched salts. Its δ15N value is determined using data from an interlaboratory comparison [2].
| Analyte | Value | Unit | SD | R/I/C |
|---|---|---|---|---|
| δ15N | +180 | ‰air N2 | 1 | C |
| δ18O | +25.7 | ‰VSMOW | 0.4 | R |
(R/I/C) Classification assigned to the property value for analyte (Recommended/Information/Certified)
