A method for determination of trace nitrogen in liquid petroleum hydrocarbons by oxidative combustion and reduced pressure chemiluminescence detection was studied.
利用氧化燃烧—减压化学发光法能够准确测定石油产品中的微量氮含量。
The high purity nitrogen was inert diluents gas during preparing the micro-oxygen in nitrogen calibration gases,as a result the content of oxygen in nitrogen was important technical target.
介绍了氮中微量氧标准气体在研究过程中稀释气体高纯氮中氧分析不确定度的评价依据,给出了评价过程和结果。
The analysis method was introduced for micro-oxygen in nitrogen calibration gases in this paper,at the same time we have definited the suitable analysis conditions and precision.
介绍了氮中微量氧标准气体的分析方法,给出了分析条件和方法的精密度,并对该标准气体配制的均匀性、稳定性的实验结果进行了分析与考察,对该气体标准物质的性能进行了评价。
The experiment method of preparing micro-oxygen in nitrogen calibration gases by gravimetric method was introduced.
介绍重量法制备氮中微量氧气体标准物质的实验方法和结果。
Determination of traceable nitrogen in argon with PDHID-GC
高纯氩气中微量氮的(PDHID-GC)测定方法
Petroleum waxes and petrolatums--Determination of trace nitrogen--Microcoulometric method
GB/T8024-1987石油蜡和石油脂微量氮测定法(微库仑法)
PREPARATION OF MICRO-OXYGEN IN NITROGEN CALIBRATION GASES BY GRAVIMETRIC METHOD
重量法制备氮中微量氧气体标准物质
Relationship between Microbial Biomass Nitrogen and Nitrogen Utilization of Maize
土壤微生物量氮与玉米氮素养分利用关系研究
Measurement of Trace Oxygen Content out of Nitrogen in Pressure-swing-adsorption Nitrogen Manufacture Process
变压吸附制氮工艺氮气中微量氧的测定
Effect of Combined Application of Organic and Inorganic Fertilizer on Soil Microbial Biomass Nitrogen and Nitrogen Cycle;
有机无机氮源配合施用对土壤微生物生物量氮及氮素循环的影响
Study on problems of determination of nitrogen in the coal using semi-micro gasification method
对半微量蒸汽法定氮有关问题的研究
Impact of Microelement on Nitrogen and Phosphorus Removal of Anaerobic Microbe
微量元素对厌氧微生物脱氮除磷的影响
Effects of Nitrogen on Micronutrient Concentration and Accumulation in Grains of Wheat
氮肥对小麦不同品种籽粒微量元素含量的影响
Influence of Glutin on the Number of Microbial Population and Mineral Nitrogen Content in Soil
明胶对土壤微生物数量及矿质氮含量的影响
The Characteristic of Microbial Biomass N and Its Relationship with the Turnover of Added N in Wetland and Paddy Soil of Dongting Lake Region;
洞庭湖区土壤微生物生物量氮及其与外源氮转化的关系
The Effect of N Regulation on Carbon Nitrogen Metabolism and Microelement in Different Wheat Varieties;
氮肥调控对不同小麦品种碳、氮代谢及微量元素的影响
Effects of Conservation Tillage on the SOC、TN、SMBC and SMBN in Two Sequence Rotation Systems with Spring Wheat and Pea
保护性耕作对麦-豆轮作土壤有机碳全氮及微生物量碳氮的影响
Effects of Combined Application of Treated Rice Straw and Nitrogen Fertilizer on Microbial Biomass C and N in Two Kinds of Soils
预处理秸秆与氮肥配施对两种土壤微生物量碳、氮动态变化的影响
Effects of subsoil bulk density on rhizospheric soil microbial population,microbial biomass carbon and nitrogen of corn(Zea mays L.) field
下层土壤容重对玉米根际土壤微生物数量及微生物量碳、氮的影响
" Determination of trace argon, nitrogen and krypton in oxygen--Gas chromatographic method"
GB/T14605-1993氧气中微量氩、氮和氪的测定气相色谱法
Spectrophotometric Determination of Trace Lead in Foods with DBM MSA
二溴对甲基偶氮甲磺光度法测定食品中微量铅
Spectrophotometric Determination of Trace Amounts of Uranium (VI) With 2,6-Dichloro-4-bromo-arsenazo
2,6-二氯-4-溴偶氮胂光度法测定微量铀(Ⅵ)