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建立了火焰原子吸收光谱法测定红枣中钠含量的方法,线性范围为0.25~3.0μg/mL,样品平行测定的相对标准偏差(n=6)为0.47%,加标回收率96.7%~103.3%,方法准确、可靠。用本方法对新疆不同品种红枣中钠含量进行测定,发现骏枣Na含量要普遍高于灰枣Na的含量。
A method for the determination of sodium content in jujube by flame atomic absorption spectrometry was established. The linear range was 0.25-3.0 μg / mL. The relative standard deviation (n = 6) of parallel determination was 0.47% and the recoveries were 96.7% -103.3% The method is accurate and reliable. Using this method to determine the sodium content in different varieties of jujube in Xinjiang, we found that the jujube Na content is generally higher than that of the jujube Na content.