Biogenic Apatite (CaPO4) Isotope Analysis – Sample Types and Selection

The following recommendations are general guidelines. Individual sample size requirements largely vary based on the preservation of the material and concentration of phosphate therein. Contact us for advice if you are concerned that your samples are too small.

Reminders

DO NOT wrap samples in aluminum or any metal foil. Use weighing paper if you need to wrap them.

Submit samples in a ziplock bag or teflon container with PRINTED SAMPLE ID attached outside the bag.

Always choose the best samples for your research objectives

Our recommended sample sizes assume the material is dry and free of adhering matrix. Please tap/click on a row to view the sample preparation instructions for each material.

Material Type Sample Size Recommended Container Other Isobar Services Available
Bone (non-ashed) 30 mg
  • Ziplock bags
Sr Isotope Analysis
U-Th Dating
Pb Analysis
Nd
+
For the best results, make sure your samples are clean and free from soil, clay particles, calcite, and other detritus. While we accept pulverized samples we recommend that they are submitted intact. If you are submitting a pulverized sample do not use a high-speed drill for subsampling.
Bone (ashed) 50 mg
  • Vials (preferably with screw tops)
  • microcentrifuge tubes, or
  • counting slides
    Put them inside a labeled Ziplock bag.
Sr Isotope Analysis
Pb Analysis
Nd
+
Disclaimer: ashed bone may not represent an original environmental signal.
Tooth 30 mg
  • Vials (preferably with screw tops)
  • microcentrifuge tubes, or
  • counting slides
    Put them inside a labeled Ziplock bag.
Sr Isotope Analysis
U-Th Dating
Pb Analysis
Nd
+
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