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- Determination of total nitrogen (Kjeldahl). 英文名称： Soils quality.
- Comparison of the Kjeldahl Method and the Dumas Method for Total Nitrogen Determination in Grasses 用凯氏法和杜马斯法测定植物样品中的全氮
- total nitrogen determination 总氮测定
- Relationships Between Total Nitrogen Determined by Kjeldahl Method and Nitrogen Fixed by Soil Minerals 凯氏全氮与固定态铵之间的关系
- 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;
- Formaldehyde and distillation are the nitrogen determination methods in the sample. 甲醛法与蒸馏法是测定样品中氮含量的方法。
- 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。
- 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。
- 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。
- 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 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。
- This article evaluated uncertainty of determination by analyzing ammonia nitrogen determination process by Nessler's reagent colorimetric method,some important factors affecting results was obtained. 通过纳氏试剂光度法测定水中氨氮过程的分析,对测定不确定度作出评估,得出影响评定测定结果几种重要因素。
- 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 amount of protein and the kinds of amino acids in tung oil cake are measured by Kjeldahl-Gunning nitrogen determination method and standard amino acid analysis method respectively. 采用水、醇、酸溶液处理桐粕,分析氨基酸含量,将处理后的桐粕制成复合饲料,并进行成鸡的饲喂实验,观察各方法的脱毒效果。
- 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
- This article evaluated uncertainty of determination by analyzing ammonia nitrogen determination process by Nessler's reagent colorimetric method, some important factors affecting results was obtained. 摘要通过纳氏试剂光度法测定水中氨氮过程的分析，对测定不确定度作出评估，得出影响评定测定结果几种重要因素。
- 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。
- 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。
