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采用HNO3消解体系对野蔷薇果进行程序升温微波消解制样,应用火焰原子吸收法测定野蔷薇果中的Ca、K、Mn、Zn、Mg、Fe、Cu、Na、Cr、Ni、Sr共11种金属元素的含量。对样品前处理条件进行筛选,确定样品适合的微波消解体系并进行消化结果的准确度和精密度实验。该方法的加标回收率为96.50%～104.50%,相对标准偏差(RSD)≤3.21%。结果表明,新疆野蔷薇果中富含Ca、Mg、K、Na、Mn、Fe等对人体有益的金属元素,而Cr、Ni等金属元素的含量较低。
The HNO3 digestion system was used to microwave and digest the wild rose hips. The content of Ca, K, Mn, Zn, Mg, Fe, Cu, Na, Cr, Ni and Sr in the rose hips was determined by flame atomic absorption spectrometry The content of metal elements. The sample pretreatment conditions were screened to determine the sample suitable for microwave digestion system and digestion results accuracy and precision experiments. The spiked recoveries of this method ranged from 96.50% to 104.50% with relative standard deviations (RSDs) ≤3.21%. The results showed that Xinjiang rosebush was rich in Ca, Mg, K, Na, Mn, Fe and other metal elements beneficial to humans, while Cr, Ni and other metal elements were low.