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International and In-house isotopic reference materials for use in the UCSC Stable Isotope Laboratory
Standard NameCompoundδ13Cδ15Nδ18OδDwt% Cwt% Nwt% Owt% HComments
TCH (NH4)2SO4-0.1021.1948.431.51mw 132.14
IAEA N-2(NH4)2SO420.3021.1948.431.51
IAEA NO-3KNO34.7013.8547.48mw.101.1
TS Gelatin NSRL 451-12.515.68
AlanineC3H7NO2-26.65-2.5040.4615.72
Pugel -12.625.6044.0216.44
Acetanilide-IUC8H9NO-29.321.2271.0910.3611.846.71Indiana Univ. Schimmellman
Acetanilide-CTC8H9NO-30.300.2071.0910.3611.846.71Costech
AcetanildeC8H9NO71.0910.3611.846.71
AtropineC17H23NO3-28.80-26.6070.5610.21
Amino Benzoic AcidC7H7NO2-27.70-4.8661.4110.21
IAEA 602 - Benzoic Acid C6H5COOH-28.8123.2068.7826.204.91Coplen et al. 2006 d13C IAEA d18O
IAEA 602 - Benzoic Acid C6H5COOH-28.8571.4068.7826.204.91Coplen et al. 2006 d13C IAEA d18O
Benzoic AcidC7H6O268.7826.204.91122.12
NaNO3NaNO37.10 32.9556.48
GlycineC2H2NO232.0018.66
Cicloesanone-2,4-dinitrofenilidrazoneC12H14N4O451.7920.1423.005.07
NicotinammideC6H6N2O59.0122.9413.107.43
UreaCH4N2O 20.0046.6726.676.67
GK GraphiteGraphite-25.00100.00
NIST USGS24Graphite-16.00100.00
NIST SRM-120c Florida Phosphate RockCa5(PO4)2.5(CO3)0.5F 21.00carbonate fluorapatite
NIST SRM-694 Western Phosphate RockCa5(PO4)2.5(CO3)0.5F13.00carbonate fluorapatite
C76-6 1975 Apatite Std
UWG-2 Gore Mtn Garnet Std.5.80Valley et al 1995 GCA pg.5223
IS-1 Icelandic Spar-10.00reported value approximate
PEF1 Polyethylene Foil NIST Ref # 8540Polyethylene-31.80-100.30
NBS-22 Hydro. StdOil-29.70 -118.50Oil
Standard NameCompoundδ13Cδ15Nδ18OδDwt% Cwt% Nwt% Owt% HComments
Wiley (OSU Carbonate Std).CaCO3
LV2 (UM)
NBS-18CaCO3-5.00-23.00
NBS-19CaCO31.95-2.20
Curacao Coral < 63 µmCaCO3
Atlantus II (Coral Aragonite)CaCO30.873.41
Elephant Enamel (EE) StdCaCO3
Carerra MarbleCaCO32.05-1.91
Carerra Marble (CM05)CaCO31.97-1.61
VSMOW waterH2O0.000.00
SLAP waterH2O-55.50-428.00
GRIP waterH2O-24.80-189.50
Truckee Tap WaterH2O
Saskatoon WaterH2O-16.54-129.70
SCDWH2O-5.33-31.60
Taylor DomeH2O-35.51-277.00
Ross Sea Ice ShelfH2O-22.67-171.70
UCSC Sodium Bicarbonate NaHCO3-5.33
UCSC2 Sodium BicarbonateNaHCO3-25.13
UC Davis - Sodium CarbonateNa2CO3-0.38
1085 6H-1 107-109Marine SedimentCarbonate Rich (~1% Corg)
ODP Leg 198 SRS-1Marine Sediment