硝酸

试验结果表明：利用该浓缩液配制出的镀液，镀速为8.0~13.5μm/h，镀层与基底材料结合良好，耐硝酸腐蚀时间超过60s，镀液寿命可达6MTO。

The results show that the depositing speed of the plating solution is between 8.0 μ m / h ~ 13.5 μ m / h. The coating layer and base have a good bond . The hydrogen nitrate corrosion resistance time exceeds 60s .

化探样品经灼烧去除易挥发组分及有机物后，用硝酸和氯化钠分解，活性炭吸附柱分离富集，采用发射光谱分析法测定金。方法的检出限为0.25ng/g。

After igniting to get rid of easy-volatile components and organic matter , using hydrogen nitrate and sodium chloride to solute , and using activated carbon adsorbed column to select and concentrate , using emission spectrographic analysis to test gold element , the detection limit is 0.25ng/g .

我们需要降低水中的硝酸盐含量。

We need to cut nitrate levels in water .

硝酸盐由土壤渗入江河。

Nitrates leach from the soil into rivers .

流入湖中的泉水和河水携带了溶于水的硝酸盐和磷酸盐。

Springs and rivers that drain into lakes carry dissolved nitrates and phosphates

硝酸盐在食品加工业中被用作防腐剂。

Nitrates are used as preservatives in food manufacture

英格兰东部因大量使用化肥导致土壤硝酸盐浓度过高。

High levels of nitrate occur in eastern England because of the heavy use of fertilizers .

它研究了过氧化氢对亚硝酸的作用。

It has studied the action of hydrogen peroxide on nitrous acid .

将硝酸倒在铜上，会散发出一种棕色的蒸气。

When nitric acid is poured on copper , a Brown vapour gives off .

人们近来研究了有肼存在时硝酸酯的反应性。

Recently the reactivity of nitric esters in the presence of hydrazine has been investigated .

在严重或顽固性病例中，个别的可用硝酸盐烧灼。

In severe or refractory cases , cauterization of the individual lesions with nitrate has been used .

硝酸盐去氧后转化为亚硝酸盐

Nitrate was aerobically reduced to nitrite .

硝酸态氮及亚硝酸态氮在不同pH条件下对蔬菜生长的影响

Effects of nitrate and nitrite on vegetable growth in different pH

钯络合物催化剂上CO和亚硝酸酯的偶联反应和机理

Mechanism and reaction of coupling of CO with rono over palladium complex catalyst

硝酸盐分解法制备Al2O3弥散强化铜基复合材料的研究

Al_2O_3 Dispersion Strengthened Copper Composite Manufactured by Decomposing of Nitrate

硝酸酯增塑聚醚推进剂中PB类助剂的作用机理

Mechanism of PB aids added in nitrate plasticized propellants

小型PVC膜硝酸根电化学传感器的研究

Investigation of Mini-PVC Membrane Chemical Sen-sor for Nitrate

硝酸银沉淀－颗粒物返还法去除COD样品中的氯化物

Removing chloride in sample of COD with Silver Nitrate

钙通道阻滞剂和硝酸盐是用来降低LES压力。

Calcium channel blockers and nitrates are used to decrease LES pressure .

抗氧化剂异VC钠有一定的阻止硝酸盐还原成亚硝酸盐的作用，而苯甲酸钠无此作用。

VC - Na antioxidant could prevent the reduction from nitrate to nitrite in some exten , but sodium benzoate could not .

直接将细胞色素C吸附在硝酸纤维素（NC）膜上，进行了基质辅助激光解吸电离－飞行时间－质谱（MALDI－TOF－MS）分析。

Cytochrome C absorbed on nitrocellulose ( NC ) membrane was directly analyzed by matrix assisted laser desorption ionization time of flight mass spectrometry ( MALDI TOF MS ) .

用改进的活体法测定了杨梅幼树体内硝酸还原酶（NR）的分布状况。

The nitrate reductase ( NR ) activity was determined in Myria rubra young trees in vivo .

稀土硝酸盐邻香兰素对甲苯胺Schiff碱配合物的热分解动力学机理分析

Analysis of kinetic mechanism of thermal decomposition about rare earth nitrates with Schiff base derived from o-vanillin and p-toluidine

硝酸甲酯与硝酸乙酯的结构、振动频率和热力学性质的密度函数理论（DFT）研究

Density Functional Theory ( DFT ) Studies on Molecular Geometries , IR Frequencies and Thermodynamic Properties of Methyl and Ethyl Nitrates

培养基最佳组合为淀粉30g/L、蛋白胨35g/L和酵母膏3g/L。添加硝酸钠有利于MTG的积累，酶活比对照提高了31%。

MTG activity is improved by 31 % by adding sodium nitrate .

庐山春季高山降水和云雾水均已严重酸化，所采样品的PH值全部小于5.6，主要酸性物质是硫酸，硝酸占次要地位；

The precipitation and cloud water in spring at the top of Lushan was acidified seriously , the pH value of all samples was below 5 . 6 , the major acid was sulfuric .

方法：复制糖尿病肾病病变（DN）大鼠模型，采用硝酸还原酶法测定尿液及肾组织匀浆中NO含量。

Methods : We prepared DN models , and detected the concentration of NO in urine and kidney homogenate by nitrate reductase method .

重稀土硝酸盐与单N-乙酸取代O2N2大环配合物的合成与表征

Diazo Rare-Earth Nitrates And Mono-N - Acetic Acid Take The Place of Combination And Character of O_2N_2 Great-Cycle Compound

硝酸-甲醇介质中UX1和UZ、UX2的阴离子交换分离

Anion exchange separation of uz , ux_2 from ux_1 in nitric acid-methanol medium

当蔬菜叶片中游离按一N十酞胺一N含量较高时抑制了硝酸还原酶活性，影响了蔬菜对NO3一N同化，使蔬菜叶片硝酸盐含量提高。

When the content of ammonium-N + amide-N in leaves of vegetables lied in high level , they inhabited the nitrate reductive activity , therefore , the content of nitrate increased in leaves of vegetables .