A simple and rapid method for simultaneous determination of nitrogen and carbon in soil samples for multi-purpose geochemical survey using elemental analyzer has been developed.
详细研究了元素分析仪的工作条件,建立了直接固体进样同时测定多目标地球化学调查土壤样品中氮、碳的方法。
Samples are combusted in an elemental analyzer, CO2 is separated from other combustion gases by gas chromatography, and the gas enters the ion source of the mass spectrometer through a split interface.
将元素分析仪(EA)与气体质谱仪(MS)连接起来,能够进行硅酸盐岩石微量碳的含量和同位素比值测定。
The uncertainty of measurement for the determination of carbon in aerosols by elemental analyser was evaluated.
分析了元素分析仪测定大气颗粒物中碳质组分的测量不确定度来源,对总碳含量的测量不确定度进行了评估。
Research on method of determining total Nitrogen and phosphorus in tobacco with automatic analyzer;
自动分析仪在测定烟草总氮、总磷中的使用与改进
Total organic carbon (TOC) and UV absorbance in surface water, sewage effluent and different kinds ofindustrial wastewater were determined by TOC automatic analyzer and UV automatic analyzer, and simultaneously COD wasmonitored by national standard method .
采用TOC、UV自动分析仪测定地表水、污水处理厂排水和不同行业的工业废水中的TOC和紫外吸光度,并用国家标准方法测定相应的COD值。
Design and application of on-line low-phosphorus autoanalyzer based on intermittent measurement;
基于间歇法在线低磷酸根自动分析仪的设计与应用
A method for determination of nitrogen content in NR by automatic analyser was experimentally investigated in this study.
试验研究自动分析仪测定 NR 中氮含量,结果表明,自动分析仪测定 NR 中的氮含量,结果与凯氏法(国标方法)测定结果基本相同,两者无显著性差异,自动分析仪法测定氮含量缩短了消化时间,减少了人为因素的影响, 具有自动化程度高,简便,快捷的优点。
hydrocarbons' heavier elements analyzer
烃类较重元素分析仪
organic micro analyzer
微量有机元素分析仪
Determination of Nitrogen Contentin Crude Oiland Heavy Distillate by CHN- O- Elemental Analyzer
元素分析仪测定原油、重质油中的氮含量
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
Method for determination of carbon and nitrogen in soil by TruSpec CN elemental analyzer.
TruSpec CN元素分析仪测定土壤中碳氮方法研究
laser element analytical cancer diagnostic unit
激光元素含量分析癌肿诊断仪
Failure Analysis and Repair of Element Board of DV5 Direct-reading Spectrometer
DV5直读光谱仪元素板故障分析与维修
Automatic Analyzer of Six Elements Mn、Cr、P、Mo、V、Ni in Alloy Steels
合金钢中锰、铬、磷、钼、钒、镍六元素自动分析仪
The Design of Software for Determination of Trace Heavy Metals in Seawater On-line;
海水重金属元素现场分析仪器的软件设计
Requirements to the spectrograph for multi-element analysis;
光谱法多元素同时分析对光谱仪的要求
Study on Instrument Miniaturization and Analytical Methods for Elements of As, Se, Sb, Sn
砷、硒、锑、锡元素的分析方法及仪器小型化研究
Analysis on the Uncertainty of the Limit of Detection of Zinc with ICP Emission Spectrometer
ICP发射光谱仪锌元素检出限不确定度分析
Portable XRF Analyzer Used for Determining the Content of Main Element Fe
便携式XRF分析仪快速测定主元素Fe含量
Series Studies on Technique and Instrument of Lanthanide Time-Resolved Fluorometric Assay
镧系元素时间分辨荧光分析技术及仪器的配套研究
Analysis of trace elements in human hair and tissues by INAA
人发和体内器官中微量元素的仪器中子活化分析
Determination of Multi-Elements in Sediments by INAA with MNSR Reactor
微型堆仪器中子活化分析测定水系沉积物中多个元素
THE FEASIBILITY STUDY ON THE USE OF INAA WITH SHORT IRRADIATION FOR MULTIELEMENT DETERMINATION
堆中子短照纯仪器多元素活化分析实用性和可行性研究
Analysis of Elements to Describe the Performance of ICP-OES by Cluster Analysis
等离子体发射光谱仪ICP-OES性能评价的元素聚类分析