title: Determination of calcium in cement by flame-emission spectrometry with strontium as internal standard.
abstract: A combination of strontium as internal standard and lanthanum as releasing agent is recommended for direct flame-emission spectroscopic determination of calcium in cement, an air-acetylene flame being used.
authors.affiliation: Laboratoire Central des Ponts et Chaussées, Chemistry Department, Paris, France.
authors.forename: I A
authors.initials: IA
authors.lastname: Voinovitch
authors.forename: G
authors.initials: G
authors.lastname: Legrand
authors.forename: J
authors.initials: J
authors.lastname: Louvrier