title: [Not Available].
abstract: Three methods commonly used for copper measurements in the range 0.5-10 mug/l. were compared by statistical analysis of the data. Regression analysis was applied to the calibration curves and confidence intervals were calculated, providing a constant index of precision. The atomic-absorption method seems to be the best choice, especially because it permits much saving of time when several metals are to be determined in the same sample.
authors.affiliation: Université du Québec à Rimouski, Département d'Océanographic, 300 avenue des Ursulines, Rimouski, Québec, Canada.
authors.forename: M
authors.initials: M
authors.lastname: Arnac
authors.forename: J P
authors.initials: JP
authors.lastname: Chanut