Pollen dating archaeology
We will need about 5-20 mg of extracted pollen free from any sediment material.A good reference for pollen extraction is the work by Brown et al.If the extract is acidic, it will be rinsed with de-ionized water to achieve a neutral p H level.However, loss of sample mass may occur during this process.
– You can use plastic snap cap microcentrifuge tubes (1.5-3cc in volume) as container of the extracted pollen.
The equipment used by postal services typically run envelopes through rollers during the automated sorting process.
The laboratory typically needs 5-20 mg of extracted pollen (approximate dry weight) for dating depending on carbon content.
(1989): Radiocarbon Dating of Pollen by Accelerator Mass Spectrometry. – The extract should not be acidic for AMS dating to be possible.
When enough sample is available, a small portion will be tested to ensure neutrality.It is important to ensure that all of the carbonates (Ca CO3) have been completely removed so there is no further mass reduction prior to combustion of the sample.