Feb. 22nd Monday 7:00 PM Poster # 53

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Topic: Metabolomics

Separating Vitamin D2 D3, their 25-OH Metabolites and C-3 Epimers

The accuracy of current vitamin D measurements by immunoassays and LCMS has been questioned due to the overlapping LC peaks with identical m/z values epimers and isobars. To solve this problem, we have developed a new HPLC method to achieve baseline separation of vitamin D2/D3, their 25-OH metabolites and C3-epimers in one single run.

Download (PDF)

http://www.nacalai.co.jp/global/cosmosil/pdf/MSACL2016_vitaminD.pdf

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Feb. 22 nd Monday 7:00 PM Poster # 54

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Topic: Small Molecule Analytes

Detecting THC Metabolites and Other Cannabinoids

In the first part, Δ9-THC, 11-hydroxy-Δ9-THC and 11-nor-9-carboxy-Δ9-THC are detected using a simple gradient. In the second part, four cannabinoids, CBD, CBN, Δ9-THC, and Δ8-THC were baseline separated making quantification easy.

Download (PDF)

http://www.nacalai.co.jp/global/cosmosil/pdf/MSACL2016_cannabinoids.pdf

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