Gören, Ahmet Ceyhan2020-01-162020-01-162019-01-01Gören A. C. , -CCQM-K95.1 Low-polarity analytes in a botanical matrix: polycyclic aromatic hydrocarbons (PAHs) in tea-, Metrologia, cilt.56, no.8002, ss.8002, 2019https://openaccess.bezmialem.edu.tr/handle/20.500.12645/13354Extraction, chromatographic separation, and quantification of low-concentration organic compounds in complex matrices are core challenges for reference material producers and providers of calibration services. Evidence of successful participation in formal, relevant international comparisons is needed to document measurement capability claims made by national metrology institutes (NMIs) and designated institutes (DIs). To enable NMIs and DIs to update or establish their claims, in 2014 the Organic Analysis Working Group (OAWG) initiated CCQM-K95.1 -Low-Polarity Analytes in a Botanical Matrix: Polycyclic Aromatic Hydrocarbons (PAHs) in Tea-. This was a follow-on comparison from CCQM-K95 which was completed in 2014.enArticle10.1088/0026-1394/56/1a/08002