hno3

Simulation experiments on fault diagnose of a cooling system of high temperature HNO3 have been performed and results show that it is effective .

对某高温硝酸冷却系统的故障诊断作仿真，结果表明本方法是有效的。

This paper described the modification of carbon nanotube ( CNT ) by treating with concentrated HNO3 .

采用浓HNO3对碳纳米管（CNT）进行了表面修饰。

Moreover , based on HNO3 / ethanol distilling method , the scanning spectrum was different from that described by previous researchers .

另外，HNO3／乙醇法提取液的扫描光谱与前人报道的不完全吻合，有待于进一步验证。

Nitric acid : Inorganic compound , colourless , fuming , highly corrosive liquid , chemical formula HNO3 .

硝酸：一种无机化合物，无色、冒烟、高度腐蚀性的液体，化学式为HNO3。

The salts were taken up with HNO3 solution ( 1 + 99 ), and ready for FAAS determinations .

所得溶液蒸发至近干，用稀硝酸（1+99）溶解盐类，溶液经定容后供作FAAS测定。

The HNO3 modification for semi-coke results in the formation of oxygen-containing groups and nitrogen-containing groups , and the rise of surface acid content ;

硝酸处理造成半焦挥发分即含氧基团和含氮基团增加，导致表面酸性上升；

Raw electric-arc-produced single-walled carbon nanotubes ( SWNTs ) were purified by HNO3 oxidation and high centrifugation in this paper .

采用硝酸氧化结合高速离心的方法提纯电弧放电法制备的单壁碳纳米管。

Variations of concentration of Pu , Fe , HNO3 , F.P.and instability of X-ray source have only minor influence on the determination of uranium .

试样中钚、铁、硝酸和裂片元素含量的变化和光源强度的波动等对测铀的影响都很小。

The silicon etching process in the HF / HNO3 / H2O System and the influence of a new additive NH4F on silicon etching were mainly studied here .

最后研究了一种新型的添加剂氟化铵对HF/HNO3/H2O体系中硅片的腐蚀反应的影响。

With HNO3 and H2O2 digestion , a method for determination of selenium in pea vermicelli by sequence injection hydride generation-atomic fluorescence spectrometry was developed .

以HNO3和H2O2溶解样品，建立了顺序注射氢化物发生-原子荧光法测定豌豆粉丝中硒的分析方法。

Homogeneous nanoporous silica films were prepared by colloidal silica derived by sol-gel process of tetraethylorthosilicate ( TEOS ) catalyzed with HNO3 .

以HNO3为催化剂，用正硅酸乙酯（TEOS）溶胶-凝胶工艺制备纳米多孔二氧化硅薄膜。

The samples of Ag-28Cu alloy were dissolved in HNO3 . Zn , Cd were determined by flame atomic absorption spectrometry after separated Ag with HCl .

将银铜合金试样经硝酸溶解，加盐酸分离银，采用火焰原子吸收光谱法测定合金中的锌、镉。

Results show that using HNO3 + H2O2 system to treat these samples , RSD < 7.5 % : recovery is 96.0 % ~ 105 % : operation is simple , rapid and suitable for a great deal of samples ' measurement .

结果发现采用浓HNO3＋H2O2湿法消化样品，操作简单快速，RSD＜7.5%，回收率96.0%～105%.还列举了样品中五种元素含量范围。

The samples were dissolved with microwave HNO3 + H2O2 dissolution system , sulfourea and ascorbic acid were used as reductant , and HG-AFS was applied to determine the stannum in tinned food .

方法样品经HNO3+H2O2微波消解体系消解后，以硫脲和抗坏血酸作预还原剂，用氢化物原子荧光光谱法测定罐头食品中锡。

The dynamic test was also carried out in a pilot plant air pulse mixer-settler . Technological system of the experiment was UO2 ( NO3 ) 2 + HNO3 + H2O / TBP30 % + OK .

在中间规模的空气脉冲式的混合澄清槽上进行动态测试，工艺体系为UO2（NO3）2+HNO3+H2O/TBP30%+OK。

The optimum HNO3 / AlOOH molar ratio is 0.07 . The optimum H2O / AlOOH molar ratio is 100 . The sol-gel-derived sorbents typically have a rather high surface area , uniform pore size distribution , and large pore volume .

采用溶胶凝胶法制备的CuO/？-Al2O3催化吸附剂具有较大的比表面，统一的孔径分布和较大的孔隙容积。

When the surface treatment of special steels is conducted by using the mixed acid formed with Nitric acid ( HNO3 ) and other acids , there will occur a lot of NOx and other Volatile acid mist which become the main pollution source of metallurgical enterprises .

采用硝酸与其它酸的混合酸对特殊钢进行表面处理时，会产生大量的NOx和其它挥发性酸雾，是冶金企业的主要污染源之一。

For example , when corroded by deposited in 5 % HF / 5 % HNO3 ( mass fraction ) solution for 30 hours at high temperature ( 98 ℃), the lost weight of SiC ceramic is only 1 / 17.4 of SiC ceramic of medium density .

同等密度但含少量游离碳的高密度材料耐腐蚀性能更好，在98℃5%HF/5%HNO3（质量分数）中腐蚀30h后失重量仅为中等密度材料的1/17.4。

A transparent and homogeneous sample solution was obtained by dissolving the surfactant of sodium salt in HNO3 ( 1 + 1 ) - OP solution upon heating . Some NO ( mainly the bridge-bound NO ) undergoes dissociation upon heating , forming N_2 and N_2O .

在加热下用硝酸（1+1）-OP溶液溶解钠盐表面活性剂样品，配制成均匀透明的样品溶液。加热过程中部分NO（主要是桥式吸附物种）分解，生成N2和N2O。

Reaction conditions which effect on the technology of nitrolysis of HA to synthesize RDX with N2O5 / HNO3 as nitrating agent catalyzed by ionic liquid were investigated , including the amount of catalyst and nitrating agent , reaction time and reaction temperature , different ionic liquids and so on .

对离子液体催化下以N2O5/HNO3作硝化剂硝解HA合成RDX反应进行了研究，考察离子液体的用量、硝化剂用量、反应时间、反应温度和不同离子液体等因素对反应的影响。