The Environmental Isotope Science Laboratory offers the following analytical services. Quoted costs per analysis are valid through December 2024.
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Chlorine stable isotope ratio of dissolved chloride by dual-inlet IRMS. $300/sample; 3 mg Cl. 6-8 weeks.
Oxygen and chlorine isotope analysis of pure alkali perchlorate or chlorate salt by dual-inlet IRMS. $600/sample; 5 mg of pure compound required. 6-8 weeks.
Oxygen and chlorine isotope analysis of dissolved perchlorate in groundwater with field-based preconcentration on IX resin and lab-based extraction/purification. $3000/sample; requires advance consultation on sample collection procedure. 10-12 weeks.
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Radioactive isotope analyses:
7-Be, 137-Cs, 210-Pb, 226-Ra, 228-Ra and 234-Th in bulk material by gamma spectrometry using well-geometry HPGe detector, $100/sample; 5 grams homogenized powder material required. Variable turnaround time (2-10 weeks) depending on current sample queue.
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All analyses are calibrated by in-batch analysis of international standard reference materials (from NIST, IAEA, USGS, CANMET, or ISL). At least 10% of samples will be measured in duplicate at no extra charge to client. EIS-Lab staff can also provide guidance on sample collection, preparation for analysis, and shipping. Additional types of analyses or rush measurements may be arranged on special basis. For further information or to request a formal quote for analyses please contact the Laboratory Director (Dr. Neil C. Sturchio, Sturchio@udel.edu). All inquiries will receive a response within 24 hours.
