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Organic analysis
Summary
SI traceable measurements in Organic Analysis
Coordination of CCQM Organic Purity Comparisons
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Primary calibrators and comparisons for organic analysis

The BIPM is the coordinating laboratory for the continuing CCQM-K55 series of comparisons related to organic substance purity determination and has established laboratory facilities to support these activities. Measurement capabilities* at the BIPM include organic analysis by LC-UV, LC-MS, LC-CAD, GC-MS, GC-FID, DSC and TGA as well as coulometric Karl Fischer titration for water content.

The BIPM coordinated the CCQM-P20.e and CCQM-P20.f comparisons on organic purity as part of a series of pilot studies carried out within the CCQM Organic Analysis Working Group (OAWG), to investigate the degree of equivalence of national measurement capabilities for organic purity determination. The CCQM-K55 key comparisons have followed on from the completion of CCQM-P20, and are piloted on an on-going basis by the BIPM. Participation in these comparisons is now an integral requirement of the OAWG's overall strategy to underpin the Primary Calibration Reference Services of NMIs providing measurement services in organic analysis.

Samples distributed by the BIPM for CCQM Organic Purity Comparisons

Samples distributed by the BIPM for CCQM Organic Purity Comparisons.


* LC-UV: liquid chromatography/ultraviolet spectroscopy
LC-MS: liquid chromatography/mass spectrometry
LC-CAD: liquid chromatography/charged aerosol detection
GC-MS: gas chromatography/mass spectrometry
GC-FID: gas chromatography/flame ionization detection
DSC: differential scanning calorimetry
TGA: thermo-gravimetric analysis
     
Summary


SI traceable measurements in Organic Analysis
Coordination of CCQM Organic Purity Comparisons