determination n of seam elements 矿层要素测定
determination of n value n值的选取
organic n determination 有机氮测定
a determination of n value n值的选取
determination of total N 全氮含量测定
A simple and sensitive fluorimetric method has been developed for the determination of trace palladium with N-(1-naphthyl)ethylene diamine(NPED) as a fluorescence reagent.
研究了市售荧光试剂N-1-萘基乙二胺（NPED）作为荧光探针测定钯的新方法。
The study of nitrogen balance in stock farming system is the basis of nutrient management in animal husbandry production, and the determination of N cycling parameters is the foundation of this study.
畜牧系统中N流动与平衡的研究是畜牧业进行养分资源管理的基础，而参数的确定又是研究养分循环与平衡的基础工作。
A capillary GC method with FID detector for the determination of residual organic solvents ethanol, isopropanol, dichloromethane, n-hexane, tetrahydrofuran, DMF and dimethyl malonate was established.
建立了毛细管气相色谱法测定甲磺酸齐拉西酮中残留溶剂乙醇、异丙醇、二氯甲烷、正己烷、四氢呋喃、D MF、丙二酸二甲酯的残留量。
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