title: Plasma retinol assay by elution from silicic acid with cymene (p-lsopropyl toluene).
mesh_terms: D000433:1-Propanol; D000704:Analysis of Variance; D002675:Child, Preschool; D002845:Chromatography; D004355:Drug Stability; D005069:Evaluation Studies as Topic; D006801:Humans; D008722:Methods; D008832:Microchemistry; D010169:Palmitic Acids; D012822:Silicon Dioxide; D013050:Spectrometry, Fluorescence; D013997:Time Factors; D014050:Toluene; D014801:Vitamin A / Q000097:blood*
chemical_list: D010169:Palmitic Acids; D014801:Vitamin A; D014050:Toluene; D012822:Silicon Dioxide; D000433:1-Propanol