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Type: Artigo de periódico
Title: Turbidimetric Determination Of Potassium By Flow Injection Analysis
Author: de Oliveira Torres J.R.
Tubino M.
Abstract: A turbidimetric flow injection analytical method was developed for the determination of potassium (K) after precipitation with a 3% sodium tetraphenylboron solution at pH 9. The minimum detection limit is about 1.0 μg K/mL. Calibration graphs ofabsorbance versus concentration are linear up to 20 μg K/mL with a correlation coefficient of 0.9982. The average sampling rate is about 60 samples per hour. Relative standard deviations (s%) obtained with standard solutions of potassium are ca. 1%. Several samples of plant leaves, bottle mineral waters and serum rehydration solutions were analyzed. © 1994 by Marcel Dekker, Inc.
Rights: fechado
Identifier DOI: 10.1080/00032719408006394
Date Issue: 1994
Appears in Collections:Unicamp - Artigos e Outros Documentos

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