Biohydroxyapatite is a new phase for the selective microweighing of organic compound vapours - markers of inflammation in the nasal mucus of calves and hu-mans Report 2. Analysis of real objects. (2021). Sorbtsionnye I Khromatograficheskie Protsessy, 21(2), 216-224. https://doi.org/10.17308/sorpchrom.2021.21/3355