The method was based on the catalytic effect of nitrite ion on the oxidation fading reaction of methyl orange and bright green with potassium bromate as oxidant in phosphoric acid medium.
在磷酸介质中，利用亚硝酸根催化溴酸钾氧化亮绿和甲基橙褪色的指示反应，建立催化光度法测定痕量亚硝酸根的新方法。
Conclusion: the method is quick and simple with little interference. It can be applied to the determination of trace nitrite in water samples of environment with satisfactory results.
结论：该方法简便快速，常见物质干扰小，用于环境水样痕量的亚硝酸根测定，结果满意。
In this paper, two rapid detection methods for carbamide in milk, namely p-dimethylaminobezaldehyde method and Nitrite-Griess method, were developed.
建立了对二甲氨基苯甲醛法和亚硝酸盐——格里斯试剂法两种对牛奶中掺入的尿素的快速检测方法。
A novel spectrofluorimetric method based on the quenching of 2-amine-6-chloropurine fluorescence with nitrite was developed for the determination of nitrite.
应用荧光光谱法研究了2-氨-6-氯嘌呤与亚硝酸根离子间的相互作用并建立了亚硝酸根离子测定的新方法。
A new spectrophotometric method for the determination of trace nitrite was studied. The method is based on the diazo - reaction of methylene violet with nitrite in hydrochloric acid medium.
研究了在盐酸介质中微量亚硝酸根与亚甲紫发生的重氮化反应，建立了测定微量亚硝酸根的新方法。
A new sensitive method for the determination of nitrite in the environmental water and nitrogen dioxide in the ambient air by adsorptive stripping voltammetry was ostablished.
本文研究了用吸附溶出伏安法测定环境水样中的亚硝酸根和大气中的二氧化氮。
The optimum recipe of yolk powder and sodium nitrite was determined by single factor trial and preference method.
通过单因素试验和优选试验法，得出蛋黄粉和亚硝酸钠的最佳配比。
Also, this kind of qualitative detecting method for nitrate can be applied in the initial enrichment system of freshwater nitrite-oxidizing bacteria.
该方法亦适用于淡水亚硝酸氧化细菌初始富集培养过程中硝酸盐的定性检测。
Conclusion This method showed high sensitivity, good selectivity and low interference. It is a good method to determine nitrite in blood.
结论此法灵敏度高，选择性好，干扰少，是检测血液中亚硝酸盐的好方法。
Conclusion: the method is simple, sensitive, rapid, practical, accurate and which is suitable for the determination of nitrite and nitrate in vegetables, fruits and derived products.
结论：该方法操作较简单，灵敏度高，速度快，干扰少，结果准确，适用于蔬菜、水果及其制品中亚硝酸盐与硝酸盐的同时测定。
A new spectrophotometric method for the determination of trace nitrite is studied. The method is based on the nitrosation reaction of xylene cyanol FF with nitrite in diluted hydrochloric acid medium.
研究了在稀盐酸介质中微量亚硝酸根与二甲苯蓝FF发生的亚硝化反应，建立了测定微量亚硝酸根的新方法。
The method was applied to direct determination of nitrite in collapse lake water, fishpond water, power plant waste water and well water with satisfactory results.
应用该法直接测定煤矿塌陷湖水、鱼塘水、电厂废水和地下水中的亚硝酸根获得满意结果。
Analysis shows that more nitrogen is oxidized by ammonia oxidizing bacteria(AOB) than by nitrite oxidizing bacteria(NOB) with more growth of the AOB than the NOB in each cycle when using this method.
结果表明：利用曝气时间实时控制，在每个周期内氨氧化菌（AOB）降解氨氮质量大于亚硝酸盐氧化菌（NOB）降解亚硝态氮质量；AOB的净增数量大于NOB净增数目。
Analysis shows that more nitrogen is oxidized by ammonia oxidizing bacteria(AOB) than by nitrite oxidizing bacteria(NOB) with more growth of the AOB than the NOB in each cycle when using this method.
结果表明：利用曝气时间实时控制，在每个周期内氨氧化菌（AOB）降解氨氮质量大于亚硝酸盐氧化菌（NOB）降解亚硝态氮质量； AOB的净增数量大于NOB净增数目。
Ciba has developed a nitrite feed rate gauge system for controlling process of continuous diazotization by polar voltage method, and Hoechst has developed newly an equipment for continual coupling.
汽巴公司发明了用极性电压法控制连续重氮化过程中亚硝酸盐加入速度的探测系统，赫斯特公司发明了连续式偶合装置。
DFT method was used to do the dynamic diameter calculation and thedecomposition of the methyl nitrite.
同时还对亚硝酸甲酯的分解过程进行计算。
DFT method was used to do the dynamic diameter calculation and thedecomposition of the methyl nitrite.
同时还对亚硝酸甲酯的分解过程进行计算。
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