1.
Research on the Alternatives of Non-ammonia Water in Determination of Total Nitrogen in Water Quality Analysis
水质总氮测定中无氨水的替代用水研究
2.
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
3.
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
4.
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
5.
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
6.
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
7.
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
8.
soil quality - determination of total nitrogen - modified method
土壤质量-总含氮量的测定法-修改的hjeldahl法
9.
Investigation on the Spectrophotometric Determination of Total Nitrogen in Chaohu Lake by Photocatalytic Oxidation;
光催化氧化-分光光度法测定巢湖水体中的总氮
10.
A Discussion on A Method using Formaldehyde To Determine Nitrogen Content Of The Ammonium Salt;
甲醛法测定铵盐中总氮含量的有关问题讨论
11.
Improvement on determination method of total nitrogen in seawater by alkaline potassium persulfate
碱性过硫酸钾氧化法测定海水总氮方法的改进
12.
Analysis the Influence Factors of Water by uv spectrophotometry
紫外分光光度法测定水质总氮影响因素分析
13.
Determination of total nitrogen content for MAP or DAP by elemental analyzer
元素分析仪测定磷酸一铵、磷酸二铵中总氮含量
14.
Determination of Total Nitrogen in Water by FIA
流动注射在线消解测定水中总氮的实验研究
15.
Basic potassium persulfate-ortho-hydroxybenzoic acid method determination of total nitrogen in dewatering sludge
碱性过硫酸钾—水杨酸法测定脱水污泥总氮
16.
Determining chloride with total nitrogen module during continuous flow analysis
连续流动分析中应用总氮模块测定氯含量
17.
Determination of Total Nitrogen in Wastewater by On-line Digestion and Flow Injection Spectrophotometry
在线消解流动注射分光光度法测定废水中总氮
18.
Determination of Total Nitrogen in Water by Microwave Digestion-UV Spectrophotometer
微波消解-紫外分光光度法测定水中总氮