总氮含量测定采用凯氏定氮法。
Micro - Kjeldahl method was developed to determine total nitrogen.
总氮的变异系数（17%）最小，比较稳定；
The variation coefficient of total nitrogen(17%) was the smallest and more stable.
但总氮和总磷的去除效果还有待进一步提高。
Meanwhile, efforts should be made to improve the removal of TN and TP.
介绍了测定柴油中总氮及碱性氮含量的各种方法。
The methods for determining total nitrogen and basic nitrides content in diesel oil are described.
芦苇冬季死亡分解会造成底泥中总氮含量的增加。
The content of TN obviously increased for the death of phragmites communis.
总氮排泄率随摄食率与同化率的提高而呈线性增加。
There existed a linear correlation equation between nitrogen excretion rate and ingestion rate or assimilation rate.
投加污泥有利于减少生活垃圾中有机氮和总氮的损失。
Addition of sludge can reduce the loss of organic nitrogen and total nitrogen during MSW composting.
并针对控制及减少输入到地下水中总氮的总量提出了建议。
And we also give some advice on controlling and reducing the total quantity of TN, which was input into the groundwater.
对硝氮、氨氮、总氮产污负荷进行MQ回归，提炼回归方程。
Regress the load of nitrate, ammonium and total nitrogen by MQ equation.
结果表明，这两种鲍鲍壳在总氮和磷含量上存在着显著差异；
The results show that the contents of nitrogen and phosphorus are obviously different between the two species shells.
利用航天遥感影像，分析了影像光谱值与土壤总氮含量之间的关系。
The relationship between soil total N content and soil reflectance was analysed.
总氮排泄率与氮的摄食率及同化率也分别呈显著正相关，但仔虾例外。
There also existed a linear correlation equation between estimated total nitrogen excretion rate and the rates of nitrogen ingestion and assimilation separately, except for the juveniles.
结果表明，地下水总氮含量模拟值与实测值最大相对误差11.67%。
The results indicate the maximal relative error between simulation values and observation values of total nitrogen concentration is 11.67%.
溪水和河水总氮的时间变化趋势一致，且各月河水的总氮含量都高于溪水。
And the content of total nitrogen in the river is higher than that in the brook every month.
考察了粒度对烟末总糖、总氮和烟碱含量近红外(N IR)预测值的影响。
The effects of particle sizes of tobacco fines on the estimated values of total sugar, total nitrogen and nicotine contents with NIR were studied.
大嵩江流域非点源总氮、总磷污染负荷占整个流域污染负荷的57％、43％。
Agricultural non-point source pollution was take up 57%> 43% of total N&P pollution loading in Dasong river watershed respectively.
结果表明：1）豫中和豫南两个烟区烟叶的烟碱含量均偏高，总氮和钾含量偏低。
The results showed that:1) The high content of nicotine, the low content of total nitrogen and potassium were found in central and south Henan tobacco-growing areas.
研究了水花生对超富营养化水体、富营养化水体的总氮总磷的去除能力及抑藻效果。
Has studied the Alternanthera Philoxeroides to the ultra eutrophication water body, eutrophication water body total nitrogen total phosphorus elimination ability and damps the algae effect.
本文总结了石油产品中总氮的测定方法，对石油产品中氮化物的分离分析也作了概括。
In the current paper we summarized the methods for the detecting of the total nitrogen, as well as the separati…
本实验创立了二种水产养殖池塘底泥总氮含量简易测定法，分别称为总氨法和硝酸盐法。
Two alternative methods measuring total nitrogen of aquaculture pond soils, named total Ammonia method and Nitrate method, were established.
各林分地表径流的总磷、总氮含量均高于大气降水，樟落混交林的总磷、总氮含量最高。
The content of total nitrogen and total phosphorus in every forest runoff is higher than rainfall, and that of Coniferous mixed forest is the highest.
人工湿地进水氮形态不同显著影响湿地脱氮效果，较高的氧化态氮比例有利于总氮去除。
Nitrogen removal efficiency is significantly influenced by nitrogen form, and total nitrogen removal efficiency is high for the sewage with high proportion of nitrate nitrogen.
以本方法为工作原理的TN-2000型总氮测定仪可用于地表水质及污水的在线监测。
The Total Nitrogen Analyzer (TN-2000) based on the principle of high temperature oxidation & chemiluminescence can be used in the on-line monitoring of surface water and waste water.
干旱处理提高了茎鞘总氮与游离氨基酸含量以及籽粒蛋白质含量，而渍水处理则使其降低。
Drought increased, while waterlogging reduced the contents of total nitrogen and free amino acid in stem and sheath, and that of protein in grain.
阐述了在水质总氮的分析中，应注意空白值、沉淀物处理、与三氮比较等几个方面的问题。
There are several key points including blank value, treatment of sediment and comparison of three kinds of nitrogen when monitoring and analyzing total nitrogen.
人工植被相对于天然植被对总氮的固定作用更为明显，而对总磷的固定作用劣于天然植被。
The fixation effect of total N in artificial vegetation was more obvious than that in natural vegetation, but it was converse on the fixation effect of total P.
用凯氏定氮法测定总氮含量，研究温度、消化时间及样品用量对野生竹红菌消化过程的影响。
The total nitrogen(N) content was determined with Kjeldahl to study the influences of temperature, digesting time and sample dosage on the course of digesting wild H.
河床-河漫滩型和谷底洼地型泥炭沉积物中总氮和总磷含量随着泥炭粒级的减小而明显增加。
With decreasing of peat granule size, the content of TN and TP was increasing obviously in peat sediment of river bed-flood land and valley depression land.
应用A/O中试装置处理实际生活污水，研究了低DO浓度下系统对有机物、氨氮和总氮的去除效果。
The COD, ammonia and total nitrogen (TN) removal efficiency were studied in the paper at low DO concentration in a pilot-scale A/O nitrogen removal plant treating domestic wastewater.
应用A/O中试装置处理实际生活污水，研究了低DO浓度下系统对有机物、氨氮和总氮的去除效果。
The COD, ammonia and total nitrogen (TN) removal efficiency were studied in the paper at low DO concentration in a pilot-scale A/O nitrogen removal plant treating domestic wastewater.
应用推荐