查询词典 paraformaldehyde

The thermoset phenolic resin was synthesized by all the waste water from the former process, paraformaldehyde and phenol.

以上述热塑性酚醛树脂生产中排放的全部废水、多聚甲醛、苯酚为原料可以合成多种用途的热固性酚醛树脂。

Methods: P-toluenesulfonic acid diethoxyphosphorylmethyl ester (4) was prepared from diethyl phosphate and paraformaldehyde by condensation and esterification.

以亚磷酸二乙酯和多聚甲醛经缩合、酯化得到对甲苯磺酸羟甲基磷酸二乙基酯(4)。

The thermoplastic phenolic resin for the production of coated sand was synthesized by replacing 37% formaldehyd aqueous solution with paraformaldehyde.

采用多聚甲醛替代37%的甲醛水溶液，可以合成用于覆膜砂生产的热塑性酚醛树脂。

Methods Healthy male SD rats of different age groups were recruited(1-, 2- and 3- week groups, 1- and 2- month groups, 6- month grown group, and 18- month aged group; n=5 each). Immunohistochemistry was performed on the coronal sections of brain of the rats perfused with paraformaldehyde.

健康雄性SD大鼠，分为7天、2周、3周、1月、2月、成年（6月龄）和老年（18月龄）7组，每组5只，共35只，多聚甲醛灌注固定，冰冻冠状切片，免疫组织化学染色，光镜观察摄像，细胞计数。

The copper/paraformaldehyde functure nanocomposite materials are made by high energy ball mill .

采用高能球磨法制备了铜/多聚甲醛纳米功能复合材料。

All of the specimens collected were divided into two parts, one part for immunohistochemical staining after fixated by 4% paraformaldehyde, the other part for culturing fibroblasts.

所有取材部位未经任何治疗，标本经无菌取材后分成2份，其中一份用40 g/L多聚甲醛固定后用于免疫组织化学检测，另一份用于成纤维细胞培养。

Methods After fixed by paraformaldehyde, vascular endothelial cells from pigs were co-cultured in vitro with natural killer cells from Chinese monkeys at different ratios. The change of the cytotoxicity of natural killer cells occurring after this contact and the content of IFN-γ and TNF-α in the supernatants were detected.

将中国猕猴的NK细胞与多聚甲醛固定后的猪血管内皮细胞按不同比例进行体外混合培养，检测NK细胞在以不同比例接触靶细胞后的杀伤活性变化以及培养液上清液中的IFN-γ及TNF-α含量。

In the step of hydroxymethylation, gaseous formaldehyde, which was decomposed by paraformaldehyde, was conducted into the reactor. Orthogonal test was designed to investigate the factors of water content in material of PF, reaction temperature, reaction time and consumption of PF on the hydroxymethylation.

在羟甲基化反应中多聚甲醛的进料方式改进为气态进料法，通过正交实验，考察了多聚甲醛原料含水量、反应温度、反应时间、多聚甲醛用量对反应收率的影响。

Paraformaldehyde in PBS was a good fixative for mRNA preserving, structure identifying and tissue section cutting.

与其它固定液比较，我们发现4％多聚甲醛磷酸盐缓冲液能较好地保存细胞中的RNA，并且结构清晰，切片容易。

In this paper,investigation has been made on the process for the synthesis of salicylaldehyde by esterification-oxidation with phenol,paraformaldehyde,boric acid as initial materials.

探索了以苯酚、硼酸和多聚甲醛为原料的酯化氧化法合成水杨醛的工艺路线，根据反应特点，改进了酯化反应方式，采用了多聚甲醛气态解聚法作为羟甲基化反应的进料方式，探讨了羟甲基化反应温度、多聚甲醛原料含水量、催化氧化反应催化剂用量对反应收率的影响并得到最佳反应条件，水杨醛收率为60.5%，纯度达98%以上。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。