硝酸

In this paper, the hydrophobic cellulose nitrate microporous composite membranes have been obtained by modification of hydrophilic cellulose nitrate microporous membranes by the use of plasma polymerization of octafluorocyclobutane.

本文以八氟环丁烷为单体，采用等离子体聚合法将亲水性硝酸纤维素微孔膜改性，制得疏水硝酸纤维素微孔复合膜。

Methods Colloidal gold-labeled monoclonal antiCK20 antibody was absorbed on nitrate cellulose membrane, and then the membrane was fixed on plastic strip with double face glue as checking line.

方法将经处理的CK20单抗标记在胶体金颗粒上并活性进行鉴定，合格后吸附在硝酸纤维膜上并固定在长方形硬质塑料胶片一端为测定线；同时将吸附有IgG蛋白胶体金的硝酸纤维膜固定在测定线的一侧为质控线。

The preparation process includes the following steps: dissolving activator and RE oxide in the molar ratio of 0.01-0.02 in concentrated nitric acid and heating to dry, dissolving the obtain RE nitrate in deionized water to obtain solution of RE nitrate; dissolving soluble tungstate and surfactant in deionized water to obtain tungstate solution; mixing the RE nitrate solution and the tungstate solution through stirring to reaction for 25-60 min to obtain white precipitate; hydrothermal reaction of the precipitate in a reaction kettle at 100-260 deg.c for 24-72 hr; centrifugally separating, washing and drying to obtain the product.

浓硝酸的加入量保证稀土氧化物溶解就可以，过量的硝酸可以加热除去；将可溶性钨酸盐和表面活性剂溶解于去离子水中，得到钨酸盐溶液，表面活剂性的加入量为反应原料重量的0-30wt％；将稀土硝酸盐溶液加入到钨酸盐溶液中搅拌，发生沉淀反应，磁力搅拌时间为25-60分钟，得到白色沉淀；将含有沉淀物的溶液作为前驱物加入到反应釜中，发生水热反应，反应温度为100-260℃，反应时间为24～72小时；离心分离，洗涤，干燥，即得所需产物。

This study has hypothesized that high concentration of nitrate, acetic and chorine ions in the scrubbing water lowers the water vapor pressure which in turn reduces the relative humidity of the scrubber outlet from 90~100% to below 80%. As a result, nitric acid can't absorb water to grow into visible white smoke particles.

本研究推论白烟消失的原因是因为含有高浓度硝酸根离子、醋酸根离子及氯离子之洗涤水蒸气压变低，使得洗涤塔出口的相对湿度由90~100%降低至80%以下，因而使得硝酸无法反应及成长成可见之白烟微粒。

The assistant materials in lead chrome yellow production such as Al2 (SO4)3, nitric acid, caustic soda and lead nitrate solution were taken as medicaments to treat the wastewater from pigment production and the treatment effect was compared with that by ferrous sulfate method.

方法］用Al2(SO4)3、硝酸、烧碱和硝酸铅溶液等铅铬黄生产原辅材料作为药剂，治理颜料生产废水，并与硫酸亚铁还原法的治理效果进行比较。

The formation mechanism of the CoNi alloy nanoparticles was yet discussed in the paper.

测定了硝酸钴和硝酸镍混合溶液在不同浓度和不同温度下的表面张力。

A new spectrophotometric method for the determination of trace nitrite was studied.The method is based on the diazo-reaction of brilliant cresol blue with nitrite.

本文研究了在盐酸介质中微量亚硝酸根与煌焦油蓝发生的重氮化反应，建立了测量微量亚硝酸根的新方法。

The absorption of root system was the main sources of nitrogen in the plant.The effects of matrix ventilation on the abaorption,transportion and metabolism of nitrogen in the root system of cucmber were discussed deeply.The results showed that contents of ammonium,nitrate,free amino acids and soluble protein in cucumber roots were higher in G1 treatment.Contents of ammonium,nitrate and free amino acids in cucumber roots were the trend of the dropping after the first rising in F1 treatment,but contents of soluble protein was lower11.03%than that of the control.

根系吸收是植物体内氮素的主要来源，本研究深入探讨了基质通气状况对黄瓜根系氮素吸收、运输和氮代谢的影响，结果表明G1通气处理根系的铵盐、硝酸盐、游离氨基酸和可溶性蛋白含量均较高；非通气处理(F1处理)根系内铵盐、硝酸盐和游离氨基酸含量呈先升高后降低的趋势，而可溶性蛋白含量始终较低，比对照降低11.03%。G1处理根系硝酸还原酶、亚硝酸还原酶、谷草转氨酶、谷丙转氨酶、谷氨酰胺合成酶活性均较高；而F1处理的酶活性在处理末期显著降低，其中谷氨酰胺合成酶活性比对照降低33.33%。

ABSTRACT Bacillus halodenitrificans (ATCC 49067), a moderate halophile, facultative anaerobe and Gram-positive denitrifier, reduces both nitrate and nitrite to nitrous oxide as the final denitrification product.

Bacillus halodenitrificans（ATCC49607），是一种能将硝酸根和亚硝酸根还原成终产物N〓O的中性嗜盐、兼性厌氧的格兰氏阳性反硝化真细菌。

The effect of hydrogen ion concentration on the lead dioxide electrodeposit was investigated by Diusman and Giaque using lead nitrate -nitric acid solutions in water.

Diusman与Giaque采用硝酸铅-硝酸水溶液研究了氢离子浓度对二氧化铅电沉积的影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。