Pollutants from fertilizer runoff, such as nitrate and nitrite, are also removed.
另外一些污染物例如硝酸盐及亚硝酸盐化肥残留物，也都被清除了。
Both schemes indicate that the nitrite ion is not produced by the reduction of the nitrate ion.
这两种方案都表明亚硝酸根离子不是由硝酸根还原生成的。
Effects of florfenicol on the activities of nitrate reductase, nitrite reductase and alkaline phosphatase in marine sediment were studied in laboratory by simulation experiment.
通过室内模拟实验研究了氟苯尼考对海洋沉积物中硝酸盐还原酶、亚硝酸盐还原酶、碱性磷酸酶活性的影响。
Industry officials estimated that almost all the water produced by such heaters contains high levels of nitrite - produced from nitrate in water that is repeatedly heated.
行业专家估计，几乎所有此类热水器的水中都含有因重复加热而导致水中的硝酸盐产生的大量亚硝酸盐。
Zinc enrichment also improved melon fruit quality, the content of zinc increased 17.1 % compared to CK, whereas the content of nitrate and nitrite reduced 6.4 % and 10.2 % respectively?
增施锌肥还使甜瓜果实中的锌元素含量提高17.1%，而硝酸盐和亚硝酸盐含量分别降低了6.4%和10.2%，果实品质提高。
The typical examples of the predecessors of N-nitro compounds were nitrate and nitrite.
亚硝酸化合物的前体——硝酸盐和亚硝酸盐正是这类物质的典型代表。
The phase diagram analysis of sodium nitrite and sodium nitrate production was made and the control conditions of product quality in the production was also put forward.
对亚硝酸钠和硝酸钠生产相图进行了分析，提出了提高亚硝酸钠和硝酸钠产品质量的生产控制条件。
In water, nitrogen exists in form of organic nitrogen, ammonia nitrogen, nitrite and nitrate.
在水中，氮是以有机氮、氨态氮、亚硝酸氮和硝酸氮的形式存在的。
The contents of nitrate, nitrite and vitamin C in leaves of 6 edible wild vegetables of Amaranthaceae were determined.
测定了广东产苋科6种野菜中硝酸盐、亚硝酸盐和维生素C的含量。
Frying increased the contents of acid and nitrate, decreased the contents of amino-N, soluble sugar, Vitamin c, nitrite.
油炒则使总酸性物质、硝酸盐含量增加，氨基态氮、维生素c、可溶性糖、亚硝酸盐含量降低。
The effect of alternative freezing and thawing can enhances the activities of some soil enzymes greatly, such as phosphatase, nitrate reductase and nitrite reductase.
冻融交替作用明显地增强土壤中磷酸酶、硝酸还原酶和亚硝酸还原酶的活性。
The effects of proportional application of cake fertilizer and chemical fertilizer on leaf nitrate, nitrite and potassium of flue-cured tobacco were investigated in a field experiment.
通过大田试验，研究了饼肥与化肥配施对烤烟硝酸盐、亚硝酸盐及钾素的影响。
The concentration of daminozide, reaction time duration and pH were shown to have significant effects on the nitrate and nitrite contents and NDMA synthesis in the reaction system.
研究了植物生长调节剂比久对反应体系中硝酸盐、亚硝酸盐含量、亚硝胺合成的影响。
Detection of nitrate and nitrite in cooked meat with reversed high performance liquid phase chromatography.
反相高效液相色谱；卤肉制品；硝酸盐；亚硝酸盐。
Based on traditional biological nitrogen removal theory, nitrogen removal involves nitrification of ammonia to nitrate or nitrite followed by denitrification of nitrate or nitrite to nitrogen gas.
依据常规生物脱氮原理，脱氮过程包括将氨氮氧化为硝酸盐氮或亚硝酸盐氮的硝化反应和将硝酸盐氮或亚硝酸盐氮还原为氮气的反硝化反应。
Preventing the nitrate and nitrite pollution of vegetable have an important value to ensure the public health.
预防蔬菜的硝酸盐和亚硝酸盐污染对于保障人体健康具有重要意义。
Can these sensors be used to measure nitrite and nitrate?
这些传感器可否用于测量亚硝酸盐和硝酸盐？
It is well known that the nitrate and nitrite from environment is causally related to infant methemoglobinemia and esophageal cancer.
环境中的硝酸盐暴露与婴儿高铁血红蛋白血症及食管癌的病因关联已为人们熟悉。
The content of nitrate and nitrite in vegetable is not only controlled by fertilization and management in produce. But correlated with handling process after collection.
蔬菜中的硝酸盐和亚硝酸盐含量受许多因素的影响，不仅受生产过程中的施肥、管理等因素控制，而且与采集后经历的食前处理过程密切相关。
The measurement of nitrate nitrogen and nitrite nitrogen in seawater has such disadvantages as many disturbing components, long time, poor repeatability and accuracy.
水体中尤其是海水中硝酸盐氮的测定较繁琐，干扰物质多，分析时间长，重现性差，准确性不高。
In this paper, the catalytic reduction of nitrate and nitrite were reviewed and the research progress was addressed. Finally, the future research in this field was recommended.
本文结合国内外最新的研究进展，对硝酸盐和亚硝酸盐的催化加氢脱氮进行了综述，并对该领域的研究进行了展望。
[Objective] The aim was to study nitrate and nitrite contents in Fenghuang tea and provide science basis for people's safety drinking.
[目的]研究凤凰茶中硝酸盐和亚硝酸盐的含量，为凤凰茶的安全饮用提供科学依据。
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。
As to the whole quality of tobacco leaf, the blend 50% : 50% of nitrate nitrogen and nitrite nitrogen is the advisable choice.
从烟叶总体质量上讲，硝态氮与氨态氮的质量比为50%：50%是可取的肥料配比。
So the people should choose to eat the vegetables that it has few nitrate and nitrite in the daily life.
所以人们在日常生活中，尽量选择硝酸盐和亚硝酸盐含量少的蔬菜食用。
When the urinary tract infection due to bacterial reduction of nitrate and nitrite generation so the test results were positive common in E. coli caused urinary tract infections.
当泌尿系统受到感染时，由于细菌还原硝酸盐生成亚硝酸盐，因此检测结果为阳性，常见于大肠埃希氏菌引起的泌尿系统感染。
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。
Different absorption spectra, color stability, and antioxidative property existed in red pigments from Parma ham and other hams cured with nitrate or nitrite.
巴马火腿的红色色素与添加硝酸盐或亚硝酸盐腌制的普通火腿的红色色素具有不同的吸收光谱、颜色稳定性和抗氧化性。
Different absorption spectra, color stability, and antioxidative property existed in red pigments from Parma ham and other hams cured with nitrate or nitrite.
巴马火腿的红色色素与添加硝酸盐或亚硝酸盐腌制的普通火腿的红色色素具有不同的吸收光谱、颜色稳定性和抗氧化性。
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