COMPARISON BETWEEN TWO INSTRUMENTAL METHODS USING IONIC EXCANGE CHROMATOGRAPHY (IEC) AND ATOMIC SPECTROPHOTOMETRY WITH INDUCTIVE COUPLED PLASMA TECHNIQUE (ICP-AES),FOR THE DETERMINATION OF TOTAL PHOSPHORUS,AND GRAVIMETRIC METHOD UNI 24048:1995 [1]

摘要

In this note the results are presented of the determination of total phosphorus,in a product for dishwashing machine,carried out using gravimetric method,IEC and ICP-AES.It was shown that instrumental techniques allow obtaining results that are statistically comparable with the ones obtained using gravimetric method and they guarantee,moreover,some great advantages for the analysis and for the operator's safety.