Determination of Na+、NH4+、K+、Mg2+、Ca2+、Zn2+in Fruits and Juice by Ion Chromatograph

Abstract

Abstract: The amount ofThe amount of Na⁺、NH⁴⁺、K⁺、Mg²⁺、Ca²⁺、Zn²⁺ in fruits (apple, pear) and juice (sports water, green tea , pear juice, carrot juice and carrot and orange juice) were respectively separated and detected by non-suppressed ion chromatography. And pyridine-2,6-dicarbexylic was used as mobile phase to separated monovalent cations and pyridine-2,6-dicarbexylic-ethylenedi-amine-oxalic acid was used as mobile phase to separated divalent cations. The analysis results showed that the common cations linear relationship was good, with detection limits 0.011～0.195 mg/L and the relative standard deviation among 0.125%～ 1.65%. This method was of advantages of simple, fast and the results were accurate and reliable.

Key words: fruits, juice, ion chromatography, cation

WANG Yu-Xin, YU Hong. Determination of Na⁺、NH⁴⁺、K⁺、Mg²⁺、Ca²⁺、Zn²⁺in Fruits and Juice by Ion Chromatograph[J]. FOOD SCIENCE, 2008, 29(2): 347-349.

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Determination of Na⁺、NH⁴⁺、K⁺、Mg²⁺、Ca²⁺、Zn²⁺in Fruits and Juice by Ion Chromatograph

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