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- Determination of total nitrogen (Kjeldahl). 英文名称： Soils quality.
- 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 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。
- 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。
- 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 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。
- 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。
- Septic tank effluent (STE) is a typical form of sewage contenting with high ammonia nitrogen (AN), total nitrogen (TN), and total phosphorus (TP). 用Langmuir方程拟合的9种基质磷的最大吸附量从大到小的排列顺序为草炭、高炉渣人工土、高炉渣、煤灰渣人工土、耕层土、煤灰渣、中粗砂人工土、中粗砂、砾石。
- The study shows that the A/O Process can effectively degrade and eliminate the ammonia nitrogen and total nitrogen in Refinery Wastewater. 采用A/O工艺能够有效降解脱除炼油废水中的氨氮，出水水质可达到国家规定的排放标准。
- The test results show that60%of the total nitrogen, 50% of the basic nitrogen and 80% of the mercaptan sulfur in the LCO can beremoved. 试验结果表明，重油催化裂化的轻柴油经乙醇溶剂精制后可脱除约60%25的总氮，50%25的碱性氮和80%25的硫酸硫，经储存试验，结果表明，精制后的柴油储存安定性有显著的提高。
- Known and unknown total nitrogen in water were measured by ionic chromatograph and GBl 1894-89 ultraviolet spectrophotometer. 采用紫外分光光度法和离子色谱法分别测定已知和未知总氮含量的水样。
- The experimental rusults show that total nitrogen and total phosphorus can be determined at the same time if the right amount of sodium hydrate and potassium persulfate are added. 实验结果表明,选用合适的氢氧化钠和过硫酸钾的加入量,可在同一消解液中同时测定总磷和总氮,并能克服消解液保存时间短的缺点。
