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中文摘要：
采用微波密闭消解电感耦合等离子发射光谱法（ICP-AES）对青藏高原土壤-牧草-家畜矿物质系统中无机元素K，Ca，Na，Mg，P，S，Fe，Cu，Mn, Mo, Co和Zn的含量进行了测定，对土壤样品消解采用HNO3-HF-H2O2酸溶体系，而草畜样品消解则采用HNO3-H2O2酸溶体系，以简化实验操作，降低空白值。方法的相对标准偏差均在5%以下, 回收率93.5%～113.5%。实验表明该方法具有良好的准确度和精密度，验证了分析数据的可靠性，为研究青藏高原土-草-畜矿物质系统中矿物质元素含量、循环、互作以及在放牧补饲生产中科学运用矿物质元素与添加剂提供了科学依据。
英文摘要：
The contents of inorganic elements including K, Ca, Na, Mg, P, S, Fe, Cu, Mn, Zn, Mo, and Co in the soil-grass- animal mineral system from Qinghai Tibetan Plateau were determined by ICP-AES using high pressure system-sealed microwave digestion. The sample of soil was digested with HNO3-HF-H2O2 acids system, but others including pasture, animal fur, liver, and serum were digested with HNO2〈H2O3 acids system. The operation would be simplified and the blank value would he decreased with the above acids systems. The results were proved to be reliable with the relative standard deviation being 0. 271%- 2. 633% for Ca, 2. 971%-4. 854% for Co, 0. 372%-2. 874% for Cu, 0. 600%-3. 683% for Fe, 0. 347%-2. 829% for K, 0. 626%-2. 593% for Mg, 0. 705%-4. 828% for Mn, 2. 946%-4. 622% for Mo, 0. 689%-3. 621% for Na, 0. 422%-3. 890% for P, and 0. 143%-4. 622% for S, 0. 166%-2. 399% for Zn, and all of them were less than 5% for all the elements, and the recov- ery being 97.1%-101.4% for Ca, 93. 5%-112.5% for Co, 95.2%-104.0% for Cu, 96.9%-104. 2% for Fe, 96. 1%-105.6% for K, 96.2%-102.8% for Mg, 91.5%-108. 9% for Mn, 95.0%-113.5% for Mo, 95.2%-101.8% for Na, 94. 7%-100. 7% for P, 98.3%-108. 4% for S, and 97.5%-102.0% for Zn by adding standard recovery experiment. The results of determination were proved that the method of sealed microwave digestion ICP-AES was sensitive, precise, easy to operate and rapid for the determi- nation of inorganic elements in the soil-grass-animal mineral system, and could satisfy the sample examination request. The methods and results were meaningful to research on the soil-pasture-animal mineral system including the contents of mineral ele- ments, the circulation of mineral elements, the interaction, and the application of mineral additive.
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