Radiocarbon Dating Groundwater The application of radiocarbon dating to groundwater analysis can offer a technique to predict the over-pumping of the aquifer before it becomes contaminated or overexploited.
Tracer-Free AMS Dating Lab Beta Analytic does not accept pharmaceutical samples with "tracer Carbon-14" or any other material containing artificial Carbon-14 to eliminate the risk of cross-contamination.
Some laboratories will analyze a sample one time and report a finite result, e.g. Beta Analytic’s own research has shown that such reports on a single analysis can be very misleading.
In the past, Beta Analytic has sent graphite splits of the same exact graphite produced from Miocene-aged coal to as many as seven different AMS labs and obtained finite quotes of ages between 42000 to 53000.
This allowed for the establishment of world-wide chronologies. It's development revolutionized archaeology by providing a means of dating deposits independent of artifacts and local stratigraphic sequences. Libby in 1949, and has become an indispensable part of the archaeologist's tool kit since.This is actually a mini-simulator, in that it processes a different sample each time and generates different dates.Beta Analytic radiocarbon dating lab is ISO/IEC 17005-accredited to perform chemical testing on the following:* Archaeological / Geological Materials and Water – Specific tests or properties measured: Determination of radiocarbon age / activity, Measurement of 14/13C, 14/12C, 13/12C– Technique Used: Accelerator Mass Spectrometry (AMS)– Range: From Present Day back to 47,000 years BP– Detection Limits: 47,000 BP* Organic and Carbonate Materials and Water – Specific tests or properties measured: Determination of Stable Isotope Ratios, Measurement of δ13C, δD, δ15N and δ18O– Technique Used: Stable Isotope Ratios by Isotope Ratio Mass Spectrometry (IRMS)– Range: -100 per mil to 100 per mil– Detection Limits: 0.05 m V mass 13 output The practical background detection limit for radiocarbon dating by liquid scintillation counting (LSC) or AMS has long been argued and researched.
These variances in detection limits have also been illuminated in the various International Radiocarbon Intercalibration Studies (TIRI, FIRI, VIRI), where sub-fossil or fossil samples yielded a range of results from finite to greater-than and not always in the right direction.