Cave, Mark; Wragg, Joanna. 2009 Summary of a preliminary study on the use of 0.1M HNO3 for preserving the stomach and intestine solutions from the unified BARGE method. Nottingham, UK, British Geological Survey, 19pp. (OR/07/037) (Unpublished)
Abstract
This report describes a preliminary study undertaken in advance of the BARGE UBM international inter-laboratory trial to investigate the use of 0.1M nitric acid as an effective preservative for the ‘stomach’ and ‘stomach & intestinal’ extracts produced in the in vitro methodology. Results for preserved and unpreserved extracts are described for measurements collected over a period of c. 1 month, with an evaluation of the extract stability and recommendations for the full BARGE inter-laboratory trial.
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