title: A photoelectric colorimetric method for the estimation of khellin.
authors.forename: I R
authors.initials: IR
authors.lastname: FAHMY
authors.forename: N
authors.initials: N
authors.lastname: BADRAN
authors.forename: M F
authors.initials: MF
authors.lastname: MESSEID
mesh_terms: D003124:Colorimetry; D007666:Khellin / Q000032:analysis*; D012044:Regression Analysis
chemical_list: D007666:Khellin
keywords: KHELLIN/determination