查询词典 methanol

The structures and properties of the precursor polymer of poly(2,5-thienylene vinylene) synthesized in water or in methanol-water mixture were studied.

对在水和甲醇－水混合介质中合成的聚噻吩乙炔前聚物的结构和性能进行了研究。

The quantitative analysis of mefenacet and bensulfuron methyl in wettable powders mixture was undertaken by HPLC, using methanol and water as mobile phase.

采用高效液相色谱法，以甲醇和水作流动相，同时测定苯噻草胺·苄嘧磺隆可湿性粉剂中苯噻草胺和苄嘧磺隆含量。

This is the first report of pectenolone and pectenoxanthin, two types of carotenoid, in the muscle of the Yesso scallop.3 Roles of the carotenoids composition and accumulation in Yesso scallopThe method for detecting carotenoids using reverse phase high performance liquid chromatography was developed. The conditions of RP-HPLC analysis were an analytical scale (200×4.6 mm, inner diameter 5μm) Eclipse XDB-C18 column of Agilent corporation; 10μl injection volume; 25°C column temperature; acetonitrile, methanol and methylene dichloride mobile phase (40:56:4, V/VV) with 0.1% BHT; 1.0 ml per minute flow rate; 450 nm UV-VIS detector; 8 minutes elution.The carotenoids from orange muscle of Yesso scallop of 7, 10, 12, 15, 18, 22 months old was detected using the method refered above.

通过柱层析、高效液相等手段对橘红色闭壳肌中的主要类胡萝卜素进行了提取分离，分离提纯得到两种类胡萝卜素，并通过MS、~1H-NMR和~(13)C-NMR对其进行结构鉴定，结果表明(3S，3\'R)-3，3\'-dihydroxy-7\'，8\'-didehydro-β，β-Caroten-4-one和(3S，3\'S)-7，7\'，8，8\'-tetradehydro-β，β-Carotene-3，3\'-diol，俗称pectenolone和pectenoxanthin是橘红色闭壳肌中的主要类胡萝卜素，这是国内外首次对虾夷扇贝闭壳肌中的类胡萝卜素进行提纯及结构鉴定。3虾夷扇贝类胡萝卜素的种类组成和累积变化规律建立了橘红色闭壳肌中类胡萝卜素的HPLC分析定量检测技术：色普柱为Agilent公司的Eclipse XDB-C18柱200mm×4.6mm，i.d.5μm进样体积，5μl ；流速1ml/min；检测波长450nm；柱温25℃；流动相为乙腈：甲醇：二氯甲烷(V/V/V=40：56：4并加入0.1%的BHT；分离时间为8min。

When they were diluted to 1%, the eye irritation of acet, alcohol and DMSO were little, while methanol had eye irritation still.

当稀释为1%后，丙酮、乙醇、二甲基亚砜无眼刺激性，但甲醇刺激性仍然较高。

MAIN OUTCOME MEASURES: The amount of trypan blue absorbed by the CAM. RESULTS: The correlation coefficient between CAM-TB score and Draize eye irritation was 0.925 9. Glycerol had no eye irritation potential, while acet, alcohol, methanol and DMSO had.

结果：鸡胚尿囊绒膜-锥虫蓝吸收法与体内兔眼刺激实验评分结果相关性很好（R2=0.925 9）。5种常见有机溶剂未稀释时，甘油无眼刺激性，丙酮、乙醇、二甲基亚砜、甲醇均有较高刺激性。

Antimony tri-dodecyl mercaptide was easily obtained from dodecyl mercaptan and antimony trichloride in methanol.

經对感染日本血吸虫病的动物疗效試驗，証明有作用，其毒性以三銻为低。

Two dimension mathematical model of the tube reactor for dimethyl ether synthesis from methanol was established The temperature and concentration profiles in axial and radial direction for this tube reactor with change of operating condition were obtained with finite difference method,so as to provide design data for developing largescale plant of synthesizing dimethyl ether from methano

通过对甲醇气相脱水制二甲醚反应特点的研究，提出了使用拟等温管式反应器的概念；并用二维数学模型进行了数学模拟；在该模型上进行了操作条件对催化床温度分布影响的模拟研究，从而提出了该反应器的结构尺寸，为甲醇气相脱水制二甲醚的大型化开发提供了设计依据。

Previous compound technics consumed a lot of dextrin,and in order to depleting the toxicity of iron sorbit ,we need use methanol and ethanol for refining it.

山梨醇铁是三价铁、山梨醇与柠檬酸的胶体络合物，以前的合成工艺消耗大量的糊精，为了降低山梨醇铁的毒性，需要用甲醇和乙醇进行精制。

The diffirences about the promotion mechanism of methanol to PCBs decomposition are found between SCWO and SCWT. The dechlorination reaction was accelerated due to the decrease of HCl which produced in the dechlorination process by the neutralisation of HCl with alkali catalyst.

发现在超临界水氧化与超临界水裂解条件下CH3OH对PCBs降解反应的促进机制有所不同，碱催化剂通过中和反应过程中产生的HCl生成NaCl沉淀导致体系中Cl的含量降低，从而促进脱氯反应的进行。

In addition, a further study was made of the technique of extraction, isolation and purification of GLA. The factional extraction used in the laboratory with n-hexane and ethanol was changed into the whole extraction of 6〓 solvent, which simplified production technique and reduced cost of production. The fungal lipid extracted from the fermentation in the medium-scale test was concentrated by the urea adducting method with methanol as solvent, at 75～80℃ for 3 hours. After GLA had been adducted twice, the content of GLA came up to 84. 25%, around a twelfth as much as the original concentration.

并对γ—亚麻酸的提取和分离纯化工艺进行了研究，将实验室中用正己烷和乙醇分步抽提的工艺改为用6〓溶剂一步抽提技术，从而简化了生产工艺，降低了生产成本；采用脲素包合法，以甲醇作为溶剂，温度控制在75～80℃，包合时间为3h，对中试发酵所提取的菌油进行了浓缩，γ—亚麻酸两次包合后，GLA含量达到84.25%，比原浓度浓缩了近十二倍。

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。