查询词典 paraformaldehyde

Methods The mouse embryo heads of different developmental stages of E10.5, E13.5, E14.5, E16.5, E18.5 and P0, P3, P6 after birth were acquired fixed with 4% paraformaldehyde for 48 hours, embeded with Paraffin and examined using LsAB （labelled streptavidin-biotin） method to observe the β-TrCP expression pattern in tooth germs, ameloblast and edontoblast.

方法取不同发育时期的鼠胚、乳鼠鼠头标本，用标记生物素链亲和素LsAB法观察β-TrCP蛋白在不同发育时期牙胚组织的表达情况。

For the synthesis of NHC precursors, there are also several routes: condensation of glyoxal, amines and paraformaldehyde; alkylation of imidazole or monosubstituted imidazole with alkyl halide; annulation of ortho esters and 1,2-diamines; ring closure of hydrazines or amides with acetic anhydride; reduction of thiones with Na/K in THF.

关于N-杂环卡宾前体的合成途径主要有：乙二醛、伯胺和多聚甲醛的缩合反应；卤代烷与咪唑及其取代咪唑的烷基化反应；原甲酸酯与1，2-二胺的成环反应；肼或酰胺与酸酐的环化反应；用Na/K对环硫脲化合物的还原反应。

The auditory thresholds were examined through the auditory brainstem responses to click, which tone pips were 8, 16, and 32 kHz. The mice were intracardically perfused with 4% paraformaldehyde. The bulla were further fixed in 4% paraformaldehyde, processed and sectioned with paraffin embedded method.

用听性脑干反应测试短声、短音8，16和32 kHz听阈，经活体心脏灌注固定、听泡石蜡包埋和耳蜗连续切片，用免疫组织化学方法确定上述3种酶在内耳的分布情况。

Methods Transient (15min) brain ischemia was induced by the four-vessel occlusion in Sprague Dawleyrats. The antisense oligodeoxynucleotides of Src and Fyn were used to suppress the expression of Src and Fyn by intracerebroventricular infusion once per day for 3 days before ischemia. After 5 days reperfusion, rats were perfusion-fixed with paraformaldehyde and cresyl violet staining were used to examine the survival of CA1 pyramidal cells of hippocampus.

采用Pulsinelli-Brierley 4动脉阻塞(4-VO)大鼠全脑缺血模型，缺血前连续3d脑室注射Src、Fyn反义寡核苷酸(antisense oligodeoxy-nucletides， AS ODNs)抑制Src、Fyn蛋白的表达后缺血，复灌5d，石蜡切片，焦油紫染色，图像分析测定单位面积内焦油紫染色细胞面积总和，与缺血组及错义寡核苷酸组(missense oligodeoxy-nucletides， MS ODNs)比较进行形态学分析。

If cells are not fixed with paraformaldehyde, keep the samples on ice and run them immediately after staining is accomplished

如果做好不能及时检测，我们一般是加入等量的2%的多聚甲醛固定，4度冰箱避光贮存。

If cell s are not fixed with paraformaldehyde, keep the samples on ice and run them immediately after staining is accomplished

如果做好不能及时检测，我们一般是加入等量的2%的多聚甲醛固定，4度冰箱避光贮存。

The other half of rats were killed and infused with 4% paraformaldehyde through left ventricle.

而iNOS在4组动物阴茎组织中的表达仍然无明显差异。

Since it is easy to store, transport and use, Paraformaldehyde is traded in different package.

由于多聚甲醛具有贮存、运输和使用方便等优点，国际上通常用不同规格的多聚甲醛这种产品形式进行一定量的甲醛贸易。

In case of cold that the crystallization is accompanied by generation of side effects paraformaldehyde, and for non-reversible reaction.

如遇冷即结晶，同时伴随有生成多聚甲醛的副反应，且为不可逆反应。

On-hoard determination of picoplankton is preferred, if possible. Otherwise, it is better to use paraformaldehyde or the mixture of paraformaldehyde and glutaraldehyde as fixatives, the samples stored in liquid nitrogen should be analyzed as soon as possible.

如有可能，应该尽量现场测定微微型浮游生物样品，否则建议采用多聚甲醛或其与戊二醛的混合物作为固定剂，将样品保存于液氮中，待返回实验室后尽快进行测定。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐