House and International Std values--and spreadsheets:

1. Waters:

1. 1. Water Standards:

1. 1. 1. 18O

1. 1. 2. DH

1. 2. Water Spreadsheet

2. DIC runs:

2. 1. DIC standards

2. 2. DIC Spreadsheet

3. Carbonate runs:

3. 1. Carbonate standards

3. 2. Carbonate Spreadsheet

4. C and N standards

5. 18O Phosphate standards (Blake Lab)

Please note, for water samples, the "bottled water" standards will vary from the measurement shown on the main website. They were repackaged as standards after that measurement was taken, then reanalyzed. Also, any given ampule may be slightly off--so please try to use three standards per sequence. Aliquots of the "bigtank" water can be used in water runs to check for drift and double check on the standards from the ampules, though there is some drift in that "standard". The oxygen values should hold, though there may be some corrections in the hydrogen numbers as more runs are reviewed.

DH (distilled, heavy):6.08 new batch, 6.42
heavy (water bath evap, filtered): 5.85
vsmow (Viena Std Mean Ocean Water, repackaged): 0.00*+
fiji (bottled water, Fiji, repackaged): -5.86; new batch: -5.48
eld (bottled water, Eldorado, CO, repackaged): -13.6
DL (distilled, light repackaged): -13.99; -13.72 new batch
GISP (Greenland Ice Sheet Precip., repackaged): -24.8
SLAP (Standard Light Antartic Precip., repackaged): -55.5
bigtank (BT): -6.9 (drifting ligher?)
ILRM (internal lab reference material):
+repackaged: vsmow 060531 running 0.3 per mil off
TX (texas, latest batch): -1.53

DH (distilled, heavy): 24.1
heavy (water bath evap, filtered): -0.5; 0.26 new batch
vsmow (Viena Std Mean Ocean Water, repackaged): 0.00*
fiji (bottled water, Fiji, repackaged): -42.9
eld (bottled water, Eldorado, CO, repackaged): -106.4
DL (distilled, light repackaged): -81.3; -80.72 new batch
GISP (Greenland Ice Sheet Precip., repackaged): -190
SLAP (Standard Light Antartic Precip., repackaged): -428
bigtank (BT): -45.3 (drifting lighter from -44.3?); -42.52 (now heavy)
ILRM (internal lab reference material): -51.2
TX (texas, latest batch): -19.85

Download the water template (Excel Spreadsheet): water-template.xls

House Ca CO3? measured on EA vs IAEA stds, e.g. PEF-1

Download the DIC template (Excel Spreadsheet): DIC-template.xls

calcite: H3PO4 liberated CO2 10^3 ln fractionation factor, 18O: 10.20, 25oC
dolomite: 11.03, 25oC, 18O
from Data of Geochemistry, 6th edition, Chapter KK. Compilation of Stable Isotope Fractionation Factors of Geochemical Interest, Geological Survey Professional Paper 440-KK, 1977 see:
http://pubs.er.usgs.gov/usgspubs/pp/pp440KK

NBS 19: 1.95 13C vpdb; 28.6 18O vsmow
NBS 18: -5.0 13C; 7.2 18O
Lincoln Limestone
Utah Marble
carerra marble

Download the Carbonate template (Excel Spreadsheet): carb-template.xls

house cocoa: -28.42 13C (48.7%); 5.24 15N (4.15%)
Post trout:
Post YGC (Yale ground cabbage):
PEF-1

all vs VSMOW
YR3-1: 34.03
TU2: 5.45
TU1: 21.11
YR1-a: -5.49
YR3-2: 33.63