Sample collections, identification and storage. Sample preparation at the laboratory. Preparation of standards. Determination of phosphorus by colorimetric method A. Determination of phosphorus by colorimetric method B. Mineral analysis by flame atomic absorptin spectrophotometer. Mineral analysis by flameless atomic absorption spectrophotometry.

Preparacion de los estandares; Preparacion de los estandares; Determinacion de fosforo por metodo colorimetrico A; Determinacion de forforo por metodo colorimetro B.