我们还对传统的甲醛—硫酸法进行了改良，并将新的甲醛—硫酸法运用于硝酸尿素金属络合物中的酰氨态氮和总氮含量的测定中。
We also improved the conventional formol-H2SO4 titrimetric method, and applied it into the determinations of the contents of amide nitrogen and total nitrogen in urea nitrate metal complexes.
因为一般的测定动物食物的测试只测量其中氮的含量，这些化学物质可以被加入昂贵的食物成分中而不为人所知。
Since the usual test for protein in animal feed just measures the level of nitrogen, these chemicals can be added to far more expensive feed ingredients without anybody noticing.
运用一氧化二氮乙炔火焰原子吸收光谱法进行热激活电池正极粉中锂含量的测定。
The application of measuring lithium content in the positive powder of thermal activated battery by the Nitrous Oxide Ethane Flame Atomic Absorbing Spectral Method.
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.
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.
不法分子将三聚氰胺添加到原料奶中，钻的是凯氏定氮法测定奶粉蛋白质含量的漏洞。
Melamine lawless elements will be added to the raw milk, the drill is the Kjeldahl method of loopholes in the milk protein content.
建立了分光光度法测定水中氨氮含量的合成不确定度的数学模式。
The paper erects math model of determined ammomial nitrogen compound uncertainty by prismatic photometer.
介绍了一种测定油田化学剂和石油产品中硫、氮含量的仪器分析方法。
The paper introduces a method to determine sulfur/nitrogen content in oilfield chemicals or oil products by sulfur/nitrogen elemental analyzer.
作物收获后，他测定了作物中氮的含量。
After harvesting the crops, he tested them for nitrogen content.
模拟试验主要模拟农田的基本情况，测定土壤淋溶液中氮的含量，采用半微量开氏法。
The simulated test mainly simulates the basic situation of the farmland, determines the content of nitrogen in soil drench solution, and adopts semi-micro Macro Kjeldahl method.
研究与运用氧化亚氮-乙炔火焰原子吸收光谱法连续测定7715D高温钛合金中的铌钼含量。
The application of nitrous oxide ethyne flame atomic absorbing spectral method to continuous measure the content of Nb and Mo in 7715D high temperature titanium alloy is studied.
测定秸秆和土壤有机质分解过程中CO_2释放量、土壤微生物量和土壤无机氮含量变化，探讨土壤有机质和秸秆分解的规律。
The mechanism of Soil organic matter and wheat straw decomposition were discussed through the accumulated CO2, microbial biomass and inorganic nitrogen content.
讨论了自行建立的核磁共振法测定四氧化二氮中相当水含量测量不确定度的影响因素，并对各不确定度分量和测量结果的不确定度进行了评定。
The influencing factors of uncertainty of measurement for determination of equivalent water content in nitrogen tetroxide by NMR method we established were discussed in this paper.
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 quality of result of measurement is characterized quantitatively through the analysis of the uncertainty for determination of protein content in the food by Kieldahl method.
阐述了化学发光法测定氮含量的原理，介绍了分析系统的组成和软件设计，给出了实验结果数据。
The measurement principle, hardware, hardware components and software design are described. The main performance indexes and experimental results are presented.
建立用一阶导数单扫描极谱法测定食品中凯氏氮含量的简单、快速的方法。
Objective: To establish a simple rapid method for determining Kjeldahl nitrogen content by 1st order differential coefficient single sweep polarography.
由于钢中氧氮对钢的性能和质量有明显影响，准确测定氧氮的含量对改进工艺控制、改善钢的性能、提高钢的质量具有重要意义。
It is important to accurately determinate the contents of oxygen and nitrogen in steel to improve process control, properties and quality of steel.
提出了紫外分光光度法同时测定生活饮用水中的硝酸盐氮和亚硝酸盐氮的含量。
This paper presented the simultaneously determine the nitrate nitrogen and the nitrous nitrogen in drinking water by UV.
方法采用放射免疫分析法测定戊四氮(PTZ)急性致痫大鼠海马内TRH的含量。
Methods The content of TRH in hippocampus in rats were examined by radioimmunoassay (RIA) after PTZ induced seizure.
用酱色、食盐等配制的劣质酱油可用测定氨基酸态氮和酱色含量的方法进行鉴别。
The soy sauce mixing with pigment and salt may be identified by determining the content of nitrogen formed in amino acid and the content of pigment.
用酱色、食盐等配制的劣质酱油可用测定氨基酸态氮和酱色含量的方法进行鉴别。
The soy sauce mixing with pigment and salt may be identified by determining the content of nitrogen formed in amino acid and the content of pigment.
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