查询词典 methanol

Based on those, A possible mechanism of methanol and higher alcohols synthesis over the catalysts was proposed.

在研究催化剂的表面结构与CO吸附性能的基础上，提出了此类催化剂合成低碳醇的反应机理模型。

The proteins in milk and dairy products were mostly eliminated by the precipitators. Three aseptics and two sweeteners were separated on a C18 column with the mobile phase of methanol -0.05mol/L potassium dihydrogen phosphate under gradient elution. With a diode array detector, acesulfame, benzoic acid, and sorbic acid were detected at 230 nm and sodium saccharin and aspartame were detected at 210nm.

通过加入适量沉淀剂除去样品中绝大部分蛋白质后，采用C18色谱柱分离，以甲醇－0.05mol/L磷酸二氢钾溶液为流动相梯度洗脱，用二极管阵列检测器于230nm波长处检测安赛蜜、苯甲酸和山梨酸，于210nm波长处检测糖精钠和阿斯巴甜。

The mobile phase consisted of methanol -0.025 mol/L K 2HPO 4 0.003 mol/L KH 2PO 4 (69∶31),and flow rate was 0.9 ml/min,UV detector was set at 220nm.The analytical recovery was 99.20% for ketamine, 99.13% for phenobarbitone and 97.62% for atropin...

氯胺酮、苯巴比妥和阿托品的平均回收率分别为99.20％，99.13％和97.62％；不同浓度水平测定结果的日内和日间相对标准偏差均小于5％；其检测限分别为0.2μg／ml，0.05μg／ml和0.5μg／ml（S∶N＝3∶1）。

The conditions was as follows: Maxima 820 workstation,Hypersil column ODSC_(18)(4.6mm×200mm 5μm),UV detective wavelength 247nm,Flow rate 1.0ml/min,sensitivity 0.01 AUFS Mobile phase is composed of acetonitrile,H_2O,methanol(45:55:1).By which the inerference of impurity may be avoided and there is a good linear relationship between concentration and peak area.

本文建立了体内外氟比洛芬样品的HPLC测定方法：色谱柱：4.6mm×200mm Hypersil ODSC_(18)(4.6mm×200mm 5μm，)紫外检测波长247nm；流动相为乙腈：水：甲醇=45：55：1，流速：1.0ml/min；柱温：室温；灵敏度：0.01AUFS，进样量：20μL，该法可将氟比洛芬与杂质分离，浓度与峰面积之间呈良好的线性关系，满足分析要求。

The engine ran on a special mixture of methyl alcohol (63%), benzene (16%), ethanol (12%), acetone (4.4%), nitrobenzene (2.2%), avgas (2%), and ether (0.4%) with MW (methanol-water) injection for charge cooling and as an anti-detonant.

特别混合物燃料为引擎运转提供动力，甲醇(63%)，苯(16%)，对氨基苯甲酸二(12%)，丙酮(4.4%)，硝基苯(2.2%)，飞机用燃料(2%)和乙醚(0.4%)，以100W充电冷却射入并作为抗爆剂。

There were still many unknowns in methanol extracts of yams and bulbils and need to be elucidated in the future.

二者间呈线性相关，线性方程式为Y=0.4499X+2.3785，相关系(r2)为0.8630，显示酚类化合物可能为提供山药零余子清除DPPH自由基能力的重要成分之ㄧ。

In chapter 2,the bi-electrophilicity ofα-CAPAs(Gly-CAPA,Ala-CAPA) was identified by the isotope analysis ~(18O,~(15)N and furtherproved by trappingα-CAPA with nucleophiles such as water,amino acids,phosphateand methanol in alkaline media which yielded phosphorylated products,namely,theNPAAs and N-(mono-substituted)phosphoryl amino acids.

自CAPA的结构被提出以来，CAPAs的化学反应几乎没有得到进一步的研究，所以本论文的第二章研究了以甘氨酸-CAPA和丙氨酸-CAPA为代表α-CAPAs分子，通过同位素标记实验~(18O，~(15)N证明了CAPA分子具有两个亲电中心。

In chapter 2,the bi-electrophilicity ofα-CAPAs(Gly-CAPA,Ala-CAPA) was identified by the isotope analysis ~(18O,~(15)N and furtherproved by trappingα-CAPA with nucleophiles such as water,amino acids,phosphateand methanol in alkaline media which yielded phosphorylated products,namely,theNPAAs and N-(mono-substituted)phosphoryl amino acids.

同时，CAPA和亲核试剂如水，氨基酸，磷酸和甲醇分子反应可以生成各种磷酰化产物，如NPAAs和N-磷上单取代的磷酰化氨基酸。

The mineral composition of interstitial phase and chemical composition of ferrite phase in the clinkers which were manufactured by Kunming Cement Plant utilizing phosphorous slag, copper slag and pulverized fly ash simultaneously were studied by means of extraction with salicylic acid methanol and acetic acid aqueous solution and XRD.

采用水杨酸甲醇溶液和醋酸水溶液选择萃取及XRD方法，对昆明水泥厂以磷渣、铜渣和粉煤灰配料生产的硅酸盐水泥熟料进行了矿物组成和铁相化学组成的研究。

All Mut+and Muts colones were induced respectively with methanol to secrete interesting peptide in shake-flask cultures for four days. After dialysis and lyophilization, the supernate of cultures were identified by SDS-PAGE and Western blotting to find the genetically engineered Pichia pastoris which expressed interesting peptide.

在摇瓶中分别用甲醇诱导Mut~+和Mut~s型转化子表达蛋白4d，取培养产物冻干浓缩，进行SDS-PAGE和Western blotting，分析蛋白的含量及纯度，筛选出能特异表达目的蛋白的基因工程菌。

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。