The sample size requirements provided below are guidelines, and will alter with the concentration of the analyte of interest.
| Sample Type | Storage & Shipping Information |
| Liquid Samples | |
| δ13C- DIC
Dissolved inorganic carbon |
Samples should be submitted in 40 mL glass septa vials with no headspace. Provide sample duplicates when available. For best results, limit light and air exposure, and keep refrigerated. |
| 14C- DIC
Dissolved inorganic carbon by AMS |
Samples should be submitted in 1 L glass bottles with no headspace. For best results, limit light and air exposure and keep refrigerated |
| δ 13C- DOC
Dissolved organic carbon |
Samples should be submitted in 40 mL glass vials with no headspace. For best results, limit light and air exposure and keep refrigerated |
| δ34S-SO4 and/or δ18O-SO4
Sulfates in aqueous samples |
Provide 250 to 500 mL of sample water in an appropriately sized bottle (*). Please provide sulfate concentration data when available.
* Volume required is dependent on concentration |
| δ 15N- NO3 and/or δ18O-NO3
Nitrates in aqueous samples |
Provide between 500 mL to 2 L of sample water (*). For best results, store frozen and limit light exposure. Please provide, nitrate, sulfate, and chloride concentration data when available.
* Volume required is dependent on concentration |
| δ δ2H- H2O and/or δ18O- H2O
Hydrogen and/or oxygen of water samples |
Provide 20 mL of sample water in a glass container with no headspace |
| 3H – H2O
Tritium of water samples (direct, enriched by electrolysis, and ultra-low level) |
Direct: 100 mL
Enriched: 300 to 500 mL Ultra: 500 mL to 1 L |
| δ37Cl Dissolved chloride | Provide between 100 to 500 mL of sample water (*). Please provide chloride concentration data with sample submission.
* Volume required is dependent on concentration |
| δ81Br Dissolved bromide | Provide 500 mL of sample water (*). Please provide bromide concentration data with sample submission.
* Volume required is dependent on concentration |
| 87Sr Dissolved strontium | Provide 500 mL to 1 L of sample water (*). Please provide strontium concentration data with sample submission.
* Volume required is dependent on concentration |
| 234U-238U230Th & 232Th (α) | Contact us |
| 234U-238U230Th & 232Th (TIMS) | Contact us |
| 226Ra (TIMS) | Contact us |
| 137Cs (ϒ) | Contact us |
| 210Pb (α) | Contact us |
| Solid Samples | |
| δ13C and/or δ15N
%C and/or %N Carbon and/or nitrogen of organic solids |
Provide at least 100 mg of ground and homogenized sample in an appropriately sized vial.
Pre-weighed samples should be weighed into tin cups, and sent in 96-well trays with a sample list and weights. Please provide replicate samples where available. Filter paper samples may also be submitted. Please provide replicate samples where available. |
| δ13C and δ18O of carbonates Apatite & dolomite | Provide at least 100 mg of ground and homogenized sample in an appropriately sized vial or small container. |
| δ34S-SO4 and/or δ18O-SO4
Sulfates in solid samples |
Provide at least 100 mg of clean and dry barium sulfate powder in an appropriately sized vial. |
| δ34S-S2
Sulfides in solid samples |
Provide at least 100 mg of ground and homogenized sample in an appropriately sized vial or container. |
| δ18O – AgNO3 | Provide at least 100 mg of clean and dry AgNO3 sample in an appropriately sized vial or container. |
| δ37Cl Solid materials (i.e. salts, rocks) | Contact us |
| δ81Br Solid materials (i.e. salts, rocks) | Contact us |
| 87Sr/86Sr Solid materials (i.e. minerals, biological samples) | Contact us |
| 234U-238U230Th & 232Th Carbonates, Silicates (α) | Contact us |
| 234U-238U230Th & 232Th Carbonates (TIMS) | Contact us |
| Organic Samples | |
| δ2H and/or δ13C Hydrocarbon gases (e.g. Methane, Ethane, Propane) | Contact us |
| δ2H and/or δ13C BTEX (benzene, toluene, ethylbenzene, and xylenes) and chlorinated solvents | Contact us |
| δ37Cl Chlorinated solvents (TCE, PCE, DCE, DCA, VC) | Contact us |
| δ2H and/or δ13C Bulk hydrocarbon gases (on the EA) | Contact us |
| Special Samples | |
| NO3 Concentrations | Contact us |
| SO4 Concentrations | Contact us |
| Cl, Br, Sr Concentrations | Contact us |
| Alkalinity | Contact us |
| AgCl Precipitation | Contact us |
| Toluene distillation of water samples for (δ18O or δ2H) | Contact us |