title: Photoselection and linear dichroism of retinals. A method for identification and measurement of various geometrical isomers.
mesh_terms: D000818:Animals; D002264:Carboxylic Acids; D002417:Cattle; D002942:Circular Dichroism; D003080:Cold Temperature; D003201:Computers; D005615:Freezing; D007536:Isomerism; D008027:Light; D008722:Methods; D010777:Photochemistry; D012160:Retina / Q000032:analysis; D012168:Retinal Pigments / Q000032:analysis*; D013057:Spectrum Analysis; D013997:Time Factors; D014783:Viscosity; D014801:Vitamin A / Q000032:analysis*
chemical_list: D002264:Carboxylic Acids; D012168:Retinal Pigments; D014801:Vitamin A