FAQ on Strontium Isotopic Ratios

1. Are the strontium concentrations provided along with the isotopic analysis?

We offer strontium concentrations as an additional service, in conjunction with the isotopic analysis. For pricing information, please contact us.

2. What is the pretreatment process for bone samples sent for strontium analysis?

The pretreatment for Sr analysis on bone consists of cleaning the surface of the sample by means of abrasion followed by rinsing with MQ water and sonication. After drying the sample, the most pristine part will be collected for sub-sampling. Sub-samples will be homogenized in pre-cleaned agate mortar and then sequentially reacted with 0.1 N acetic acid (8 rounds of treatment) to remove non-biogenic Sr (Hoppe et al, 2003). 

3. Is plant material suitable for strontium analysis?

Yes, plant material can be submitted for this analysis. The sample must be dried prior to being sent in order for us to precisely measure the Sr isotopic ratio.

4. Can charred wood be submitted for strontium analysis? 

Yes we can accept charred wood. The samples should be clean and free of detritals. By conducting a visual inspection, the most clean part of the sample can be picked for submission.

5. How long can water samples be stored prior to being sent?

Water samples should be viable if stored at room temperature for up to six months.