| 单词 | 己烷 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 释义 | 己烷 noun —hexane nSee also:烷—alkane 烷 n—ethane n
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这些替代产品均以乙酸乙酯或乙酸乙酯与 环 己烷 共 溶 剂混合物聚合而成。 cn.lubrizol.com | The substitute products are polymerized in either ethyl acetate or a cosolvent mixture [...] of ethyl acetate and cyclohexane. lubrizol.com |
它汇集了全面不同规格的产品，如：六甲基二胺（HMD）,二氨基 环 己烷 （ DC H）,双六亚甲基三胺（BHT）,胺溶液（AiS）。 rhodia.com.cn | It gathers a comprehensive product range available with different grades: HexaMethylene Diamine (HMD), DiaminoCycloHexane (DCH), Bis-Hexamethylene Triamine (BHT) and Amine in Solution (AiS). rhodia.com.cn |
强极性溶剂（如丙酮、甲基乙基酮 (MEK) 或二氧杂环己烷）将 对膜造成无法恢复的损坏。 cn.spectrumlabs.com | Strong polar solvents such as acetone, Methyl Ethyl [...] Ketone (MEK) or dioxane will irreparably [...]damage the membranes. eu.spectrumlabs.com |
化驗人員首先秤取 足夠重量的樣本( 介乎 1 至 150 克，視乎食物樣本的基質而定)，然後定量 添加硫酸鈉和九種多溴聯苯醚同系物的穩定同位素( 碳 -13 標記) 內標物， 再加入二氯甲烷和己烷( 比例為一比一) 的混合物。 cfs.gov.hk | Sodium sulfate and stable isotope (carbon-13 labelled) internal standard of nine PBDE congeners were spiked quantitatively into this measured amount of sample. cfs.gov.hk |
具体而言，“传统”聚合物是在苯中进行合成，而“具有毒理学优势”的聚合物则是在乙酸乙酯或乙酸乙酯 / 环 己烷 混 合 物共溶剂中进行合成。 cn.lubrizol.com | Specifically, the “traditional” polymers are synthesized in benzene and the [...] “toxicologically preferred” polymers are synthesized in either ethyl acetate or a cosolvent [...] ethyl acetate/cyclohexane mixture. lubrizol.com |
2082-79-3分 子 量: 531 物 理 特 性：有 三 种 产 品 外 观Irganox 1076白色粉末 Irganox 1076 FD 白至微黄色小丸Irganox 1076 FF 白色颗粒 [...] 熔 点：50℃－55℃ 溶 解 度: (20℃) ％w/w丙 酮 19苯 57氯 [...] 仿 57醋 酸 乙 酯 38己 烷 32甲 醇 0.6水 < 0.01 [...]贮 储 及 安 全 操 作:Irganox 1076 的 贮 存 应 符 合 良 好 的 工 业 要 求。 eflam.com | Chemical structure: Benzenepropanoic acid, 3,5-bis (1,1-dimethyl-ethyl)-4-hydroxy-, octadecyl ester (9Cl) CAS-No.: 2082-79-3 Molecular Weight: 531 Physical Characteristics: There are three kinds of products Irganox 1076 Appearance White powder Irganox 1076 FD white to pale yellow pellets Irganox 1076 FF white granules Melting point: 50 ℃ -55 ℃ Solubility: (20 ℃)% w / w acetone, [...] 19 benzene 57, ethyl acetate, chloroform [...] 57, methanol 38 Hexane 32 0.6 Water "0.01 [...]storage reservoir and the safe operation: [...]Irganox 1076 of the storage should be consistent with good industrial demand. eflam.com |
鉴于有关药用配方中使用苯的法规限制，路博润公司推荐在所有新的药物开发项目中采用以乙酸乙酯或乙酸乙酯与 环 己烷 共 溶 剂混合物聚合而成的卡波姆。 cn.lubrizol.com | Due to regulatory restrictions on the use of benzene in pharmaceutical formulations, Lubrizol recommends that carbomers polymerized in [...] either ethyl acetate or a cosolvent mixture of ethyl [...] acetate and cyclohexane be used for [...]all new drug development projects. lubrizol.com |
从20世纪80年代开始，使用乙酸乙酯、乙酸乙酯 / 环 己烷 共 溶 剂的新产品和新工艺便纷纷涌现，提高了产品的安全性。 cn.lubrizol.com | Starting in the 1980s new products and processes using ethyl acetate and [...] ethyl acetate/cyclohexane cosolvents [...]were introduced to enhance product safety. lubrizol.com |
以正己烷、正庚烷、正辛烷和正壬烷作为非极性探针分子测定［AMIM］Cl在343.15、353.15、363.15和373.15 K温度下的表面色散自由能;以二氯甲烷、三氯甲烷、丙酮、乙酸乙酯、四氢呋喃作为极性探针分子测定离子液体Lewis酸碱性质,并测定了吸附自由能和吸附自由焓变等热动力学参数。 chrom-china.com | Four n-alkanes, including n-hexane (C6), n-heptane (C7), n-octane (C8) and n-nonane (C9), were chosen as the apolar probes to characterize the dispersive component of the surface free energies at 343.15, 353.15, 363.15 and 373.15 K, respectively; and dichloromethane (DCM), trichloromethane (TCM), tetrahydrofuran (THF), ethyl acetate (EtAc), acetone (Acet) as the polar probes to estimate the Lewis acid-base parameters to judge the interactions between ［AMIM］Cl and the solvents. chrom-china.com |
环己烷生产Axens在采用其HC系列催化剂进行苯加氢来生产高纯度 环己 烷方面处于世界领先地位。 china.axens.net | Axens is the world leader in high-purity cyclohexane production through benzene hydrogenation with its HC series catalysts. japan.axens.net |
食物內有害物質規例》(第 132AF 章 )(下稱"《規例》")禁止售予人類食用的任何魚類、肉類 或奶類出現3種外源性激素，分別為乙二烯雌酚、乙二基己烯雌 酚和己烷雌酚 ，以及它們的鹽類及酯類。 legco.gov.hk | The Harmful Substances in Food Regulations (Cap. 132AF) ("the Regulations") prohibit the occurrence of three exogenous hormones, namely dienoestrol, diethylstilboestrol or hexoestrol, including salts and esters thereof, in any fish, meat or milk for sale for human consumption. legco.gov.hk |
脂质提取物经Varian ChromSpher 5 Lipids柱分离,在0.75 [...] mL/min的流速下以乙腈-正己烷(1:99, v/v)为流动相进行等度洗脱,采用大气压化学电离源正离子模式电离,质谱增强型全扫描、增强型子离子扫描和中性丢失扫描模式检测。 chrom-china.com | The extract was separated on a Varian ChromSpher 5 [...] Lipids column with isocratic elution using [...] acetonitrile-hexane (1:99, v/v) as [...]mobile phase at a flow rate of 0.75 mL/min, [...]and detected by a mass spectrometer equipped with an atmospheric pressure chemical ionization (APCI) source in positive ion mode to acquire sufficient MS information of TAG compounds by enhanced mass spectrometry (EMS), enhanced product ion (EPI) and neutral loss (NL) scans. chrom-china.com |
環己烷為環烷烴的一種，又稱六氫化苯 (C6H12)，鑑於它獨特的化學與構象特性，常被利用作為實驗分析之標準。 nanovietech.com | Cyclohexane is a cycloalkane [...] with the molecular formula C6H12, and often used in labs in analysis as a standard, because [...]of its unique chemical and conformational properties. nanovietech.com |
这一点在测定高离子浓度的样品（如等渗盐水）或低介电常数的分散剂（ 如 己烷 ） 时显得尤为重要。 malvern.com.cn | This is particularly important when [...] measuring samples at high ionic concentration, e.g. isotonic saline, or in low dielectric [...] constant dispersants such as hexane. malvern.de |
以总脂肪酸的色谱峰面积为响应指标,采用响应曲面法优化了主要工艺参数,其结果为: 猫爪草粉末5.0 g,正己烷50.0 mL,微波功率500 W,反应温度50 ℃,催化剂用量0.30 [...] g,甲醇用量4.0 mL,提取衍生化时间8 min。 chrom-china.com | The best technological parameters [...] were determined as 5.0 g of [...] Ranunculus ternatus Thunb. powder, 50.0 mL of n-hexane, 500 W of [...]microwave power, 50 ℃ of reaction [...]temperature, 0.30 g of catalyst (KOH), 4.0 mL of derivatization reagent (methanol) and the time of extraction-derivatization of 8 min. chrom-china.com |
對於分析顏料中若干元素的測試 程序，規定採用正己烷( 而非 1,1,1-三氯乙烷或其他合適溶劑) [...] 作為溶劑。 legco.gov.hk | To require [...] the use of n-heptane (instead of 1,1,1-trichloroethane [...]or other suitable solvents) as the solvent in test procedures [...]for analysis of certain elements in paints. legco.gov.hk |
与溶剂提取法（如正己烷作为 溶剂）相比，产量虽较低但脂肪酸概况表明仅有非极性脂类。 labome.cn | In comparison with an extraction with [...] solvents such as hexane, yields are lower [...]but the fatty acid profile demonstrated only non-polar lipids. labome.com |
然而，随着时间的推移，路博润公司已经扩展其产品系列，现可提供以乙酸乙酯等在毒理学方面更具有优势的溶液聚合而成的产品，或者以乙酸乙酯和 环 己烷 的 共 溶剂混合物聚合而成的产品。 cn.lubrizol.com | However, over time Lubrizol has expanded its product offering to include products polymerized [...] in more toxicologically preferred solvents such as ethyl acetate or a cosolvent mixture [...] of ethyl acetate and cyclohexane. lubrizol.com |
抗倒酯; 4-环丙基(羟基)亚甲基-3,5-二酮环己烷 羧 酸 乙酯 chemblink.com | 4-(Cyclopropyl-alpha-hydroxymethylene)-3,5-dioxo-cyclohexanecarboxylic acid ethyl ester; Ethyl 4-cyclopropyl(hydroxy)methylene-3,5-dioxocyclohex anecarboxylate chemblink.com |
由于环己烷不溶于水，且 密度为 0.78 g/cm3 ，溶解并沉淀（即沉入海床）的 [...] 量及消散的量为微不足道或零（来源：Chemsys – 英国国家化学品应急中心 (NCEC)，http://the-ncec. com）。 itopf.org | As cyclohexane is immiscible [...] and has a density of 0.78 g/cm3 , the dissolved and settled (i.e. sunk to the sea floor) volumes, [...]as well the dispersed volume, are negligible or zero (Source: Chemsys – National Chemical Emergency Centre (NCEC), http://the-ncec.com). itopf.org |
调查组在位于北京金源时代购物中心的老边饺子馆和东来顺金源饭庄，分别取到疑似劣质一次性餐盒样品，后经北京市理化分析测试中心进行卫生性能检测，老边饺子馆所使用的“YL-03”餐盒，乙酸和 正 己烷 蒸 发 残渣检测结果分别是4540mg/L和729mg/L，分别超过规定限值153倍和23倍;东来顺饭庄使用的“ZS-104”餐盒，这两项指标检测结果分别为3980mg/L和704mg/L，分别超过规定限值132倍和22倍。 nfjx.com | Investigation team in Beijing Golden Resources Shopping Mall in the old side of Dumpling House and Dong Lai Shun Jin Yuan restaurant, were taken to a suspected low-grade samples of disposable lunch box, after the Beijing Municipal Center for Physical and Chemical Analysis for health, performance testing, the old side of [...] Dumpling House The use of "YL-03" lunch boxes, [...] acetic acid and hexane evaporation residue [...]test results were 4540mg / L and 729mg [...]/ L, respectively, exceeding the prescribed limit of 153 times and 23 times; Dong Lai Shun restaurant use "ZS- 104 "lunch box, test results of these two indicators were 3980mg / L and 704mg / L, respectively, exceeding the prescribed limit of 132 times and 22 times. nfjx.com |
以双烯雌酚(DS)和己烷雌酚 (HS)为目标化合物,将MIP-SBSE与高效液相色谱-二极管阵列检测器联用,建立起复杂样品中DS和HS的分离分析方法。 chrom-china.com | In order to evaluate the usability of the new coating, the MIP-SBSE was combined with high performance liquid chromatography (HPLC) and diode array detector (DAD) with dienestrol (DS) and hexestrol (HS) as detected solutes. chrom-china.com |
通过在乙酸乙酯/环己烷共溶剂混合物中配制聚合物，毒理学特征得以改进，从而提高了环境容许性。 cn.lubrizol.com | Enhanced toxicological profile to improve environmental acceptability by offering polymers produced in a cosolvent blend of ethyl acetate/cyclohexane lubrizol.com |
食品包装材料、水质模拟物和橄榄油中增塑剂分别采用溶解-沉淀法、 正 己烷 液 -液 萃取和凝胶渗透色谱(GPC)法提取。 chrom-china.com | Plasticizers in the PVC packaging materials, aqueous food simulants and olive oil food simulants were extracted by the dissolution-precipitation, liquid-liquid extraction and gel permeation chromatography (GPC) approaches, respectively. chrom-china.com |
研究表明: [...] 虽然与应用最广泛的分别以淀粉及纤维素三(3,5-二甲基苯基氨基甲酸酯)为手性选择因子的商品化手性柱Chiralpak AD和Chiralcel OD相比,所制备的手性固定相的手性分离能力较低,但纤维素三(3-三氟甲基苯基氨基甲酸酯)手性固定相显示出特异的手性识别能力,一些手性化合物在此固定相上得到了比在Chiracel OD上更好的分离;所制备的手性固定相的手性识别能力随流动相中异丙醇含量的降低而变好,当流动相中 正 己烷 与 异 丙醇的体积比为95:5时所制备的手性固定相显示出相对较高的手性识别能力;总体来说,淀粉三(3-三氟甲基苯基氨基甲酸酯)手性固定相的手性识别能力稍强于纤维素三(3-三氟甲基苯基氨基甲酸酯)手性固定相,同时两种手性固定相的手性识别能力具有一定的互补性。 chrom-china.com | Compared with the most widely used, commercially available polysaccharide-based CSPs, Chiralpak AD and Chiralcel OD, utilizing tris(3,5-dimethylphenylcarbamates) of amylose and cellulose as the chiral selector, respectively, the obtained CSPs exhibited lower enantioseparation abilities. chrom-china.com |
以正戊烷(C5)作为标定色谱死时间的探针分子 , 正 己烷 、 正 庚烷、正辛烷和正壬烷作为非极性探针分子,计算了不同温度下UTP的色散表面自由能;以四氢呋喃、丙酮和三氯甲烷作为极性探针分子,计算得到了UTP表面的酸碱作用吸附自由能和吸附焓。 chrom-china.com | The γds and the acid/base characters of UTP’ surfaces were estimated by the retention time with different non-polar and polar probes at infinite dilution region. n-Pentane (C5), n-hexane (C6), n-heptane (C7), n-octane (C8) and n-nonane (C9) were chosen as the non-polar probes to characterize the γds. chrom-china.com |
选择7种指示性毒杀芬单体为检测品种,样品用 环 己烷 - 丙 酮 (9:1,v/v)加速溶剂萃取法提取,经弗罗里硅土固相萃取柱净化后,以气相色谱-电子轰击离子源串联质谱(GC-EI-MS/MS)在多反应监测(MRM)模式下进行测定。 chrom-china.com | The samples were extracted by accelerated solvent [...] extraction with cyclohexane-acetone (9:1, v/v), then cleaned-up by Florisil solid phase extraction with hexane as the eluent [...]and the residues [...]were detected by gas chromatography-electron ionization tandem mass spectrometry (GC-EI-MS/MS) in multiple reaction monitoring (MRM) mode. chrom-china.com |
事務委員會的委 員並無就有關溴氯甲烷的修 訂建議提出任何異議( 請參閱載於立 法會CB(1)595/08-09號文件的事務委員會會議紀要)。 legco.gov.hk | Members of the Panel did not raise any objection to the proposed amendments relating to bromochloromethane (ref: minutes of meeting of the Panel are in LC Paper No. CB(1)595/08-09). legco.gov.hk |
方案还将协助经济转型国家的能源经济和能源基础设施更充分地融入区域和 [...] 全球经济；加强进出口国的能源安全；通过交易碳排放和煤矿 甲 烷 的 自筹资金机 制来减少温室气体排放；改善能源产业的绩效；通过在全球范围内采用能源储存 [...] 和资源分类标准促进化石燃料的长期供应。 daccess-ods.un.org | It will assist countries with economies in transition to integrate their energy economies and infrastructure more fully in the region and the global economy, increase energy security for importing and exporting countries alike, reduce greenhouse gas emissions through [...] self-financing mechanisms for trading carbon emissions [...] and coal mine methane, enhance the performance [...]of energy industries and contribute [...]to the long-term supply of fossil fuels through the global adoption of a classification standard for energy reserves and resources. daccess-ods.un.org |
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