Relationships among the concentration of total saccharides,total nitrogen and total phosphorus in the water with algae;
含藻水体中总糖、总氮和总磷相关性研究
Study on methods of decreasing blank absorbency in determination of total nitrogen in water;
降低总氮测定中空白吸光值的研究
Measurement of total nitrogen of surface water by ion chromatograph;
离子色谱法测定地表水中的总氮
Analysis on Pollution Characteristics of TN and TP in Moshui Lake Sediment;
武汉墨水湖底泥中总氮、总磷污染特征分析
Determination of TN and TP in Water with Microwave Digestion and Flow Injection Spectrophotometry;
微波联合消解流动注射光度法测定水中总氮和总磷
Removal of TN From Eutrophic Water by Lolium Multiflorum Planted on Floating-bed;
浮床黑麦草去除富营养化水体总氮的试验研究
By evaluating and optimizing present measurement technology and typical manual methods for aquatic total nitrogen(TN) and total phosphorus(TP),a new online monitoring technology and instrument for aquatic TN and TP were developed based on ultraviolet-K2S2O8 photocatalysis spectrophotometer.
通过优化国内外水质总氮总磷的手工和自动监测方法及设计参数,研究了基于紫外催化-过硫酸钾氧化分光光度法的在线监测技术,设计了紫外线加强氧化-消解反应器和20通道自动校准与自动进样集成控制系统。
The eutrophic level was evaluated through measuring water temperature,pH,chromaticity,total nitrogen(TN) concentration,total phosphorus(TP) concentration,chlorophyll-a level(Chla),total amount of the algal cells and water tropic state index(TSI).
方法选择5个监测断面:汾河水库出口、寨上水文站、胜利桥、小店桥、清徐二坝,通过检测各断面水体的水温、pH值、色度、总氮(TN)、总磷(TP)、叶绿素-a、藻细胞密度等指标,并计算水质营养状态指数(TSI)对其富营养化作出综合评价。
Analysis and improved methods of bland sample experiment in determining total-nitrogen in water;
水质总氮空白实验分析及改进措施
Analyse of high content of total-nitrogen in Danjiangkou Reservoir;
丹江口水库总氮含量较高的调查分析
Determination of Total-Nitrogen,Total-Sugar and Nicotine in Tobacco by FT-NIR Spectrometry;
FT-NIR光谱分析技术测定烟草中总氮、总糖和烟碱
Relationship Between Microbial Biomass N Mineralization and Total Nitrogen Mineralization in Paddy Soils of Subtropical China;
红壤水稻土微生物生物量氮与总氮矿化的关系
The total N in enviromental samples is commonly determined by K_2S_2O_8-spectrophotometric method,and the total P is commonly determined by phosphatic molybdenum spectrophotometry.
环境样品总氮的测定常用过硫酸钾氧化-紫外分光光度法测定,而总磷一般为磷钼蓝分光光度法。
Simultaneous determination of the total nitrogen,ammonium-nitrogen,nitrite-nitrogen,and nitrate-nitrogen in wastewater by continuous fluxion analysis
连续流动分析法同时测定污水中总氮、氨氮、亚硝酸盐氮、硝酸盐氮
Distribution of Organic Nitrogen and Total Nitrogen in the Surface Sediments of Pearl River Estuaries
珠江河口表层沉积物有机氮和总氮的分布
Nitrogen measurement in infantile zhili syrup by Kjeldah method
凯氏定氮法测定小儿智力糖浆中总氮含量
Relationship between Total Nitrogen,Total Alkaloid,Ratio of Total Nitrogen to Total Alkaloid and Sensory Quality in Flue-cured Tobacco Leaves of China
我国主产烟区烤烟总氮、总植物碱、氮碱比与感官质量的关系分析
Design of Total Phosphorus and Total Nitrogen On-line Automatic Determination Software System in Water-Quality Control;
水质总磷总氮在线自动监测软件系统的设计
On-Line Automatic Digestive Technology for Total Phosphorus and Total Nitrogen in Sea Water
海水中总磷、总氮在线自动消解技术的研究
Dynamics of TN and TP in the Backwater Region of the Linjiang River in the Three Gorge Reservoir
三峡库区临江河回水区总氮和总磷的动态特征
Research on Water Quality Assessment of the Reservoirs,Total Nitrogen and Total Phosphorus Forecast in Luan City
六安市水库水质评价与总氮·总磷预测研究
A comparison of performances of three reagents for total Nitrogen and Phosphorus simultaneous digestion
三种总氮总磷联合消解液测定效果的比较
Chemical reagent--General method for the determination of total nitrogen
GB/T609-1988化学试剂总氮量测定通用方法
Two Alternative Methods for Measuring Total Nitrogen of Pond Soils
二种池塘底泥总氮含量的简易测定法
TOTAL NITROGEN REMOVAL EFFICIENCY OF IMPROVED CONSTRUCTED RAPID INFILTRATION SYSTEM
改进型CRI系统总氮去除效果试验研究
Jingxian 89 decreased TNC but improved RSN synchronously.
粳籼89可显著降低后代中总氮含量，同时提高糖氮比；
Genetic Analysis for Soluble Sugar Content, Total Nitrogen Content and Ratio of Sugar to Nitrogen of Rice(Oryza Sativa.L.) Across Environments;
不同环境下稻米可溶性糖含量、总氮含量和糖氮比的遗传研究
Distribution and Relationship of Nitrogen Content in Flue-cured Tobacco Leaf and Soil in Sanmenxia Tobacco Districts
三门峡烟区烤烟总氮与土壤氮素含量的分布特点及关系分析
Determination of total nitrogen content for compound fertilizers--Titrimetric method after distillation
GB/T8572-1988复混肥料中总氮含量测定蒸馏后滴定法
NON-POINT SOURCE TN LOAD RESEARCH IN WEIHE BASIN ABOVE LINTONG SECTION;
渭河临潼断面以上流域非点源总氮负荷研究
The total absorption of nitrogen increased with the amount of nitrogen topdressing, but the proportion of absorption nitrogen during the blooming period to total nitrogen were downtrend.
棉花总吸氮量随著追氮量的增加而增加，但花铃期吸氮量占总吸氮量的比例呈下降趋势。