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Simultaneous Determination of Si,Fe,Na in Water Samples by ICP-OES with Microwave Digestion

Yuan Yuan

Abstract

Simultaneous determination of Si,Fe and Na in water samples by inductively coupled plasma optical emission spectrometry was established.Four sample pretreatment methods were discussed and microwave digestion method with HNO_3-HF system was recommended.Boric acid is used to eliminate the interference effect from hydrofluoric acid.Recoveries of the method for these elements were 89.2%~106% with precision of less than 4%RSD(n=5).

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Available abstract

Key concepts: Inductively coupled plasma atomic emission spectroscopy, Hydrofluoric acid, Microwave digestion, Boric acid, Chemistry, Inductively coupled plasma, Analytical Chemistry (journal), Microwave