甲醇

The structures of various SAPO and their suitable catalytic reaction systems were described in this paper.The application possibilities of SAPO as catalysts in the conversion of methanol to light olefins or supports of catalysts for the automotive exhaust control were also prospected.

在此论述了SAPO的结构类型及适用的催化反应体系，并对它作为甲醇转化制低碳烯烃过程催化剂和汽车尾气净化催化剂载体的应用前景作了展望。

XRD results reveal that the addition of HF decreases the defects in the crystal lattice of SAPO 34, which is proved by the two distinct double peaks at 2 θ=26°and 31° and other ...

以氟化氢三乙胺复合模板剂合成的分子筛，在催化甲醇制低碳烯烃反应中结焦速率降低，生成乙烯及丙烯的选择性则略有提高

SAPO 34 molecular sieve ; composite template ; hydrogen fluoride ; triethylamine ; methanol ; olefin

SAPO-34分子筛；复合模板剂；氟化氢；三乙胺；甲醇；烯烃

The result indicates that the best method for extracting β-carotene is to saponify the test specimen one hour with 4% NaOH methyl alcohol solution in 60-70'c and then to separate with 3:7 acetone-benzine component solvent as extraction solvent, MgO as the absorbent, the acetone-benzine as the eluent. Extracted solvent has been determined in the color dish condition (1cm) by ultraviolet spectrophotometer at 447 nm. The result shows that the β-carotene in carrotis 0.134 mgg^(-1), 0.0863mgg^(-1) in red pepper and 0.0426 mgg^(-1) in spinach.

结果表明，比较优先的β-胡萝卜素提取方法是：试样用4% NaOH甲醇溶液在60℃~70℃皂化1h，用3：7的丙酮－石油醚混合溶剂提取，以Mgo为吸附剂，丙酮－石油醚为洗脱剂分离，提取液用紫外分光光度计在波长447nm，1cm比色皿条件下测定，得出蔬菜中β-胡萝卜素含量：胡萝卜为0.134mgg^(-1)，红椒为0.0863mgg^(-1)，菠菜为0.426mgg^(-1)。

Methods Amplify IL-6 (23)-PE40 gene from the previously constructed recombinant plasmid pKK-IL-6(23)-PE40 by PCR, and insert to the SnaB Ⅰand NotⅠ sites of vector pPIC9. Transform the constructed recombinant plasmid pPIC0-SN to P. pastoris GS115 by electroporation, screen Mut-recombinants for expression under induction of methanol.

采用PCR技术，将目的基因IL-6(23)-PE40插入到pPIC9载体中SnaBⅠ与NotⅠ位点，电转化至巴斯德毕赤酵母GS115中，筛选Mut-型重组酵母；甲醇诱导表达，体外细胞试验检测其细胞毒性。

The temperature-programmed desorption and temperature-programmed surface reaction were studied by in situ mass spectrographic analysis.

应用质谱在线技术，对CuO-ZnO-ZrO2催化甲醇水蒸汽重整反应进行程序升温脱附和程序升温表面反应研究。

Based on the above reaction principle, a novel method, chromotropic acid spectrophotography, was established to determine methanol content during fermentation of Pichia Pastoris.

利用该反应原理建立毕赤酵母发酵过程中检测甲醇含量的变色酸分光光度法。

MethodsThe ethyl acetate fractions from MeOH extracts of the spermoderm of Xanthoceras sorbifolia were partitioned and purified by means of several separation methods.

方法采用多种分离技术对文冠果种皮甲醇提取物的醋酸乙酯部位分离纯化，根据其理化性质和光谱数据进行结构鉴定。

Dendrimers with stearyl groups on the periphery are synthesized by amidation using dendrihmers with NH2 on the periphery and stearyl chloride as raw materials.

以乙二胺和丙烯酸甲酯为原料，甲醇为溶剂，通过Michael加成及酰胺化反应，合成端基为胺基的树枝状大分子。

Objective: To elucidate the chemical constituents and anti-inflammatory activity of the methanol/chloroform extracts from seeds and seedlings of Suaeda salsa L.

目的 ：阐明盐地碱蓬幼苗和种子氯仿/甲醇提取物的化学组成及其抗炎作用。

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。