您要查找的是不是：
- total nitrogen method 检总氮法
- Determination of total nitrogen (Kjeldahl). 英文名称： Soils quality.
- Total Nitrogen in Lubricating Oils by Modified Kjeldahl Method, Method of Test for (05. 用改良的基耶达法测定润滑油中总氮量的试验方法(05。
- The total nitrogen content of compound fertilizer have been studied using the Kjeldahl Method. 摘要采用凯氏定氮法，对复合肥料总氮含量进行了测定研究。
- With calcium chloride precipitant to eliminate the interference of PO43-, total nitrogen in compound fertilizer is determined by formol method. 用氯化钙作沉淀剂，消除磷酸根离子的干扰，用甲醛法测定复合肥中的总氮。
- The hydrometer is an indirect method of estimating total nitrogen and phosphorus, while conductivity meter can estimate ammonia nitrogen and total potassium. 近红外光谱分析法则可快速地预测总氮、铵态氮、硝态氮以及水分等含量，并且精度较高。
- The total nitrogen and the chlorophylls a concn.had certain relativity. 总氮和叶绿素浓度有一定的相关性;
- The result of the experiment shows that not only the nitration of the system but also the removal of total nitrogen are improved sharply,which manifests that the method is economical and feasible. 试验结果表明,在原水力停留时间不变的条件下,投加悬浮填料,不仅系统硝化效果明显,而且总氮去除率也能得到显著提高。
- The methods for determining total nitrogen and basic nitrides content in diesel oil are described. 摘要介绍了测定柴油中总氮及碱性氮含量的各种方法。
- Maize straw returning to the field can increase the soil total nitrogen and inorganic nitrogen content. 秸秆还田增加了土壤全氮和无机氮含量。
- Topdressing nitrogen treatment had no obvious effect to total nitrogen in soil, but it had a stronger effect to alkalined-nitrogen. 追氮处理对土壤全氮没有明显的影响，但对土壤大麦碱解氮的影响比较大。
- METHODS:Coordination titra_ tion and nitrogen method were employed to determine the content of zinc and aceglutamide in aceglutamide zinc. 方法:分别采用配位滴定法、氮测定法测定乙酰谷酰胺锌中锌、乙酰谷酰胺的含量。
- But because the tests detect total nitrogen, from both protein and nonprotein alike, they do not truly measure protein. 但这些测试方法检测的是来自蛋白质和非蛋白质的全部氮含量，而不是真的直接测量蛋白质。
- The chroma,the total nitrogen,the total acid,pH,alcoholicity,diacetyl and CO2 of the product beer were close to that of Zhujiang beer. 总氮、色度、pH、总酸、酒精度、双乙酰、CO2与所测的珠江啤酒的指标接近。
- The experiment indicates that the ammonia nitrogen content in the synthesized CNN is 22.78%,and its total nitrogen content comes to 35.08%. 实验表明;合成的CNN中氨态氮含量22.;78%25;总氮含量35
- Total nitrogen content decreased gradually (upper: Y= -0.0026X2 -0.0327X+5.0258,R2=0.952*; middle leaf: Y=-0.0027X2-0.0034X+3.9486, R2=0.9801**). 淀粉呈现出上部叶增加（Y=0.;011X2-0
- In soilless culture, we should pay attention to proper adjust the ratio of nitrogen to potassium and the ratio of ammonia nitrogen to total nitrogen. 在无土栽培中要注意适当调节氮钾比和氨态氮与总氮的比例。
- The testing methods for total nitrogen and the denitrogenation technologies such as acid refining,solvent refining were also reviewed. 综述了酸精制、溶剂精制等脱除石油产品中氮及各种总氮的测定方法。
- Van Slyke's amino nitrogen method 范斯莱克氨基氮测定(法)
- By setting-up simulated mangrove wetland in a greenhouse,the behavior of total nitrogen in Avicennia marina simulated wetland system was studied. 在温室中建立红树林植物白骨壤模拟湿地系统,分别用正常、5倍和10倍浓度的人工配置的城市污水每周定时定量对模拟系统污灌2次,用海水作对照,持续1年。
