Validación de métodos analíticos en la matriz agua: natural, de consumo humano y residual para los parámetros: nitritos, turbiedad, amonio, fósforo total y nitrógeno total

Abstract

Validation of a method arises with the need to test the performance parameters of a method are suitable for application by providing reliable and accurate results, it is for this reason born the initiative to validate methods: total nitrogen, total phosphorus, ammonium, nitrites and natural water turbidity, residual human consumption and then increase the scope of accreditation of laboratories UTPL. Validation of total phosphorus, ammonium and nitrites was performed by spectrophotometry for total nitrogen determination was by titration and finally for validation turbidity determination is performed by comparing the intensity of light by using a turbidimeter. To comply with the plan validation made the determination of the following parameters: detection limit, limit of quantification, working range, accuracy, reproducibility, precision and uncertainty.