title: Microdetermination of iron in water by ion-exchanger colorimetry with ferrozine.
abstract: The use of ion-exchanger colorimetry for determination of microamounts of iron in water with 3-(2-pyridyl)-5,6-bis(4-phenylsulphonic acid)-1,2,4-triazine disodium salt as colour reagent is described. The advantages are the high sensitivity, ease of operation, good reproducibility, and simplicity of apparatus. Also, because of concentration by the ion-exchanger resin the detection limit of the method may be as low as the mug ml level.
authors.affiliation: Department of Chemistry, Beijing University, Beijing, China.
authors.forename: L
authors.initials: L
authors.lastname: Shi-Yu
authors.forename: G
authors.initials: G
authors.lastname: Wei-Ping