硝酸纤维素

In order to explore the relationship between structure and properties of hydroxyalkyl cellulose ether nitrate, molecular structures of nitrate ester of hydroxylethyl cellulose ether, nitrate ester of hydroxylpropyl cellulose and nitrate ester of cellulose glycerol ether with molar substitution of 1 were simulated by using Synthia module of Materials Studio, and their performances of nitrogen content, glass transition temperature and Young's modulus were predicted.

为探索羟烷基纤维素醚硝酸酯的结构与性能关系，借助Materials Studio软件中的Synthia模块模拟了摩尔取代度为1的羟乙基纤维素醚硝酸酯、羟丙基纤维素醚硝酸酯和二羟丙氧纤维素醚硝酸酯的结构，并预测了它们的含氮量、玻璃化转变温度和杨氏模量。

Methods The colloidal gold labeled with protein A of S taphylococcus aureus, contected with the polysaccharide antigen of Yersinia pestis to pyroxylin membrane and assembled them to the dipstick of ICA.

采用柠檬酸三钠还原法制备胶体金颗粒，标记金黄色葡萄球菌A蛋白作为探针，同时用鼠疫多糖抗原致敏硝酸纤维素膜，共同组装成基于免疫层析原理的胶体金法快速诊断盒。

Methods Deoxidize method of the trisodium of citrate was used to prepare colloid golden pellet,and label Staphylococcus aureus protein A;Using the soluble antigen of Mycoplasma pneumoniae to sensitize pyroxylin membrane,then prepare immuno- chromatographic diagnosis test paper used in clinical serum specimen detection.

方法采用柠檬酸三钠还原法制备胶体金颗粒，并标记金黄色葡萄球菌蛋白A；用支原体肺炎可溶性蛋白抗原致敏硝酸纤维素膜；组装成免疫色层析法诊断试纸，用于临床血清标本检测。

In this paper, chemistry composition, fiber morphology and pulping property in Solidago canadensis were analyzed and determined preliminarily. The results showed that the content of holocellulose was 81.86%, the content of cellulose was 42.63%, the content of lignin was 18.86%, it is feasible for using Solidago canadensis pulping based on it's chemical composition. The ratio of fiber length to width in Solidago canadensis was 36.67, the average length of fiber was 440 μm, and the length of fiber was too short to pulping. The ratio of wall thickness of fiber cell to lumen diameter was 0.34, and it was smaller than that of other woody fiber. In this experiment, four different methods of pulping were as follows: kraft-AQ pulping Ⅰ, kraft-AQ pulping Ⅱ, alkaline pulping, alkaline sulfite adding AQ pulping, but it was difficult for lignin removal in Solidago canadensis.

通过对一枝黄花的化学组成、纤维形态以及制浆性能进行初步探索，结果表明：(1)加拿大一枝黄花的综纤维素含量为81.86%，硝酸乙醇纤维素含量42.63%，木素含量18.86%，由化学组成看，加拿大一枝黄花是比较适宜制浆造纸的；(2)加拿大一枝黄花纤维的长宽比为36.67，纤维平均长度为44μm，从纤维长度来看，加拿大一枝黄花的纤维较短，不适宜制浆，其纤维壁腔比0.34，和其它速生材相比较小；(3)采用4种碱法制浆方案，硫酸盐蒽醌法Ⅰ，硫酸盐蒽醌法Ⅱ、烧碱法、碱性亚钠＋蒽醌法，结果显示，加拿大一枝黄花的木素非常难脱除。

Saturated speeds, antioxidizing, and nitrocellulose, Amino resins, a total of five oxygen resin, and so on, made into bakeout dry coating, with attachthemselves bridgeis strength and toughness, solvent-resistant, and features: anti-weathering.

饱和速量矮，耐氧化性好，与硝酸纤维素、氨基树脂、五氧树脂等共撮合，制成烘烤潮燥的涂膜，具有附着不结实，不弱韧、耐冷、耐溶剂性和耐候性等特点。

In Western blotting, Ig and Ig heavy chain of the sturgeons have the same antigenicity and can be detected by antibody of rabbit anti the sturgeon Ig respectively in colloxylin membrane while light chain cannot be detected.

Western blotting的检测结果表明，3种鲟鱼Ig的重链与其Ig具有同样的抗原性，在硝酸纤维素膜上可被兔抗鲟Ig多克隆抗体所识别，而轻链的Western blotting检测结果则呈阴性。

Low-molecular-weight EC was attained with ethylcellulose being degraded by 34% nitric acid; Fourier transform infrared spectroscopy, 13C-NMR,element analysis confirmed that the basic structure and major properties of low-molecular-weight EC maintained agreement with those of undegraded EC except that the polymerization degree of EC decreased.

乙基纤维素被 34%硝酸降解可以得到低分子量的乙基纤维素；FTIR，1 3C- NMR，元素分析，X-射线衍射分析证实在硝酸降解过程中，除了聚合度和结晶度降低之外，乙基纤维素的基本特性和基本结构没有变化；EC分子量的大小影响纳米微球的粒径大小、粒径分布和对药物的包覆效率。

The nitrocellulose filter s are then placed on wet filter paper containing alkali, which denatures the DNA

再将硝酸纤维素滤膜置于含碱的湿滤纸上，碱的作用是使DNA变性。

Adopting 30-second nitrocellulose as the main sticky material, using ethyl acetate, ketone, alcohol and aromatic hydrocarbon as a mixture solvent and modifying nitrocellulose with dimethyl phthalate plasticizer,the prescription of staple adhesive was designed with orthogonal experimental methodology.

选用30s 硝酸纤维素作为主要成膜物质，醋酸酯、酮、醇和芳烃作为组合溶剂，邻苯二甲酸酯类复合增塑剂对硝化棉进行改性，采用正交试验方法确定胶黏剂的配方。

The long specific DNA probes were synthesized by polymerase chain reaction in the highly specific gene sequences of above 10 bacteria. The species-specific probes synthesized were inoculated on a nitrocellulose filter and hybridized with template DNA labeled with long-arm photosensitive biotin. The signal of hybridization reaction was observed to detect which bacteria infected. The sensitivity and specificity of the method were studied.

在这10种病原菌高度特异的基因序列内利用聚合酶链反应合成上述10种细菌特异的长链DNA探针，并将合成的特异探针固定在硝酸纤维素膜上，与用长臂光敏生物素标记后的模板DNA进行斑点杂交反应，通过观察杂交信号判断存在何种细菌感染，同时研究该方法的敏感性和特异性。2。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。