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Certified Reference Material (CRM) MESS-2

Developed by: National Research Council of Canada (NRC)

Purpose: Used for quality assurance in geochemical analyses

Certified Concentrations: While specific REE concentrations for MESS-2 are not readily available, subsequent materials like MESS-4 provide certified concentrations for various elements, including REEs such as cerium (72 mg/kg), europium (1.3 mg/kg), lanthanum (35 mg/kg), neodymium (42 mg/kg), samarium (5.5 mg/kg), and ytterbium (2 mg/kg).

Study by Saha et al. (2015)

Focus: Determination of trace REEs in gadolinium aluminate using inductively coupled plasma mass spectrometry (ICP-MS)

Scope: This study does not specifically address the verification of REE concentrations in MESS-2.

GeoReM Database

Usage: Researchers often rely on databases like GeoReM for reference values of REEs.

Discrepancies: Variations in analytical methods and calibration standards can lead to discrepancies between different sources.

Recommendations for Accuracy

Consult Multiple References: To ensure accuracy in your analyses, it is advisable to consult multiple references.

In-House Validation: If possible, perform in-house validation using well-characterized CRMs.

Conclusion

Given the limited availability of certified REE concentrations in MESS-2, it is crucial to use multiple references and consider in-house validation to ensure the accuracy of your geochemical analyses. The GeoReM database can be a valuable resource, but be mindful of potential discrepancies due to different analytical methods.

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