采用微波密闭消解电感耦合等离子发射光谱法(ICP-AES)在夏(六月中旬)、秋(九月中旬)、冬(十二月中旬)对青海湖东普氏原羚生境地中不同草地类型混合牧草进行Cu,Fe,Mn,Zn,Mo五种微量元素的测定,采用HNO3-H2O2酸溶体系进行消解,结果表明:该方法检出限值在0.002～0.008μg·g-1之间,相对标准偏差在0.13％～4.29％之间；通过添加标准回收实验,回收率在94.00％～101.30％.与传统方法相比,该方法具有良好的准确度和精密度,为普氏原羚生境状况的研究提供科学依据.%For the mixture forge from different types of grassland, trace elements including copper, manganese, iron, zinc and molybdenum were separately determined by ICP-AES using high pressure system-sealed microwave digestion in the habitat of the Przewalski' s gazelle in Qinghai Hudong in summer (mid-June), autumn (mid-September) and winter (mid-December). The samples of mixture forage were digested with HNO3-H2O2 acids system. The detection limits of the method for the elements varied from 0. 002 to 0. 008 μg · G-1, with relative standard deviations between 0.13% and 4. 29%, and the spike recovery ratios for them were in the range from 94. 0% to 101. 30%. This method was simple, sensitive and precise compared with conventional method, which will provide scientific basis for the research on gazelles habitat condition.
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