Determination of fluoride ion by gradient elution ion chromatography.
نویسندگان
چکیده
منابع مشابه
Thiocyanate determination by ion pair chromatography
Department of Analytical and Environmental Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania A simple and rapid ion pair chromatographic method has been developed for the determination of thiocyanate. Separation was carried out on a 25 cm × 4.6 mm Ascentis C18 column (5 μm particle size) with a mobile phase containing 2 mmol/l tetrabutylammonium (TBA)-phosphate (pH 6.5) ...
متن کاملLarge-Scale Gradient Elution Chromatography
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The anions of milk have been successfully analysed by ion chromatography coupled with suppressed conductivity detection. With an appropriate sample preparation (ultrafiltration alone, or combined with dry mineralization), this method enabled simultaneous identification and quantification of chloride, phosphate and citrate ions with good repeatability (relative standard deviations of about 1%). ...
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A convenient method for determination of sodium azide in beverages using ion chromatography is described. This method combines the specificity for azide with a simple sample preparation using a bubble and trap apparatus that removes any interferences. Sodium azide in a sample was acidified, and the azide was converted to the volatile hydrazoic acid, which was trapped in 2.5 mM sodium hydroxide ...
متن کاملRapid determination of germanium and tin by ion chromatography
A method was established for the simultaneous determination of germanium and tin in one run by ion chromatography. Using a selected eluent, Ge and Sn were separated on a bifunctional ion-exchange column, followed by a postcolumn chromogenic reaction and spectrophotometric detection at 520 nm. The whole procedure was completed within 5 min with high sensitivity and selectivity at the low-/zg/1 l...
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ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 1990
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.39.6_327