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目的为制订重楼重金属元素及有害元素限量标准提供一定参考,同时为其合理用药和规范化栽培基地的选择提供依据。方法用火焰原子吸收光谱法测定Ca、Mg、Fe、Mn、Cu和Zn,用石墨炉原子吸收光谱法测定Mo、Pb、Cd和Cr。结果所有样品中Ca、Mg和Fe的量较高,Zn、Mn、Cu、Pb、Cr、Mo和Cd的量次之。火焰法测定Ca、Mg、Fe、Mn、Cu和Zn的加样回收率为99.0%~103.6%,石墨炉法测定Mo、Pb、Cd和Cr的加样回收率为99.9%~101.8%,精密度均小于2.60%。结论该方法操作简单,准确度高,数据结果可靠,可作为川产重楼中无机元素定量方法。
Objective To provide some references for formulating the limit standards of heavy metal elements and harmful elements in heavy building, and provide the basis for their rational use of medicine and the selection of standardized cultivation base. Methods The Ca, Mg, Fe, Mn, Cu and Zn were determined by flame atomic absorption spectrometry. The determination of Mo, Pb, Cd and Cr by graphite furnace atomic absorption spectrometry. As a result, the amount of Ca, Mg and Fe in all the samples was high, followed by the amount of Zn, Mn, Cu, Pb, Cr, Mo and Cd. The recoveries of Ca, Mg, Fe, Mn, Cu and Zn by flame method were 99.0% ~ 103.6%. The recoveries of Mo, Pb, Cd and Cr were 99.9% ~ 101.8% Degrees are less than 2.60%. Conclusion The method is simple, accurate and reliable. The method can be used as a quantitative method for inorganic elements in the Chongfu Building.