1)  soil residual nitrate N
残留硝态氮
2)  residual nitrate nitrogen in soil
土壤残留硝态氮
3)  residues
残留
1.
Determination of Stilbene Hormones Residues in Foodstuffs of Animal Origin by Automated Solid-phase Extraction/High-performance Liquid Chromatography-Tandem Mass Spectrometry;
自动固相萃取/高效液相色谱-质谱/质谱检测动物源性食品中残留二苯乙烯类激素的方法研究
2.
Determination of malathion residues in grain by gas chromatography;
气相色谱法测定粮食中农药残留—马拉硫磷
3.
Analysis on three kinds of gonadal hormones residues in muscle of Lutjanus sanguineus;
红笛鲷肌肉中三种性腺激素残留的分析
4)  residue
残留
1.
Determination of emamectin benzoate residue in vegetables by high performance liquid chromatography with fluorescence detection;
高效液相色谱荧光检测法测定蔬菜中残留的甲氨基阿维菌素苯甲酸盐
2.
Investigation on nitrite residue in marked-available pot-stewed meats in Ya-an city;
雅安市酱卤肉制品中亚硝酸盐残留调查研究
3.
Determination of Chloramphenicol Residues in Aquatic Products by Gas Chromatography-Mass Spectrometry;
水产品中氯霉素残留的气质联用法检测
5)  Residual
残留
1.
Development of Analyzing Residual Patulin in Fruit and its Product;
水果及其制品中棒曲霉素的残留分析进展
2.
Determination of residual content of organic solvents in cisapride with gas chromatography;
气相色谱法测定西沙必利中有机溶剂的残留量
3.
Analysis of residual Prometryme in Angelica;
当归根中扑草净残留分析
6)  remain
残留
1.
The Detection of the Penicillin Remained in Milk by Method MTT;
MTT法检测牛奶中青霉素残留
2.
People give higher demand of the harmful material remain analyses in food with the environmental protection.
随着人们环保意识的提高,对食品中有害物质残留分析提出了更高的要求。
3.
Due to its slow discharge,this chemical can usually induce the problem of remaining.
氯丙嗪作为一种镇静类兽药被广泛使用,其主要在肝脏中代谢,并随尿液逐渐排出;但因排出过程缓慢,容易产生药物残留。
参考词条
补充资料:硝态氮
分子式:
CAS号:

性质:以硝酸根离子NO3—形态存在于土壤、植物和肥料中的氮素。常用符号NO3——N表示。硝酸钠、硝酸钙、硝酸铵(除含硝态氮外,还含有铵态氮,因其性质更接近硝态氮肥,故归入之)都属于硝态氮肥。淹水的水稻田中硝态氮含量很少,而在温带旱作土壤中硝态氮常有积累。它是植物直接吸收利用的速效性氮素。土壤中硝态氮含量随季节和植物的不同生育期而变。土壤硝态氮不被土壤吸附,雨季易淋失,水田中还可因反硝化作用而损失。植物中的硝态氮是植物体内主要的无机态氮,在一定范围内植物中的硝态氮含量可反映当时土壤供氮状况和植物体内氮素营养水平。但水稻体内所含硝态氮极少,不能作为氮素营养水平和诊断指标。植物组织液中硝态氮的含量(以N计)约为100~1000mg/kg。硝态氮是水质监测的重要项目之一。有些国家已将含氮订入了湖沼水质的标准。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。