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IAEA-602, Benzoic Acid,苯甲酸,IAEA同位素标样 天津欧捷科技有限公司代理奥地利IAEA原子能机构同位素标准品,IAEA-602, Benzoic Acid,苯甲酸... IAEA-602, Benzoic Acid,苯甲酸,IAEA同位素标样 Materials with known 2H, 13C, 15N and 18O isotopic composition
Unit Size: 1.0 g
The organic reference material is intended for δ18O oxygen isotopic calibrations by using TCEA technique [1]; the δ13C value is given for information porpoise only. Use of IAEA-602 for δ13C carbon isotopic analysis by combustion technique is not recommended as it is enriched in 17O and 18O, so its 17O/18O ratio no longer reflects that of natural terrestrial materials [2]. Values [1, 2] are reported on the VSMOW scale and VPDB scale correspondingly.
| Analyte | Value | Unit | SD | R/I/C |
|---|---|---|---|---|
| δ18O | +73.35 | ‰VSMOW1 | 0.39 | R |
| δ13C | -28.85 | ‰VPDB1 | 0.04 | I |
(R/I/C) Classification assigned to the property value for analyte (Recommended/Information/Certified)
[1] VSMOW scale
[2] VPDB scale
References:
Brand, W.A., et al. (2009) Comprehensive inter-laboratory calibration of reference materials for delta O-18 versus VSMOW using various on-line high-temperature conversion techniques. Rapid Communications in Mass Spectrometry, 2009. 23(7): p. 999-1019. DOI: 10.1002/rcm.3958
Coplen, T.B., et al. (2006) New guidelines for delta C-13 measurements. Analytical Chemistry,. 78(7): p. 2439-2441. DOI: 10.1021/ac052027c.
