The samples were extracted with ethyl acetate and cyclohexane (1:1, v/v), and cleaned-up by gel permeation chromatography. The GPC eluant collected from 26 min to 44 min was concentrated to 1 mL, then analyzed using GC-MS. A DB-1701 column was used for the separation. The MS detection was performed in selected ion monitoring mode.
样品用乙酸乙酯-环己烷(体积比为1：1)均质提取，凝胶渗透色谱净化，收集26～44 min的流出液并进行在线浓缩，通过气相色谱柱(DB-1701)分离后在选择离子监测模式下进行质谱检测。
The sample was extracted with acetonitrile using a high speed homogenizer and cleaned up on a gel permeation chromatography using ethyl acetate-cyclohexane(1 ∶1, by volume) as mobile phase.
样品经乙腈均质提取2次，旋转蒸发浓缩后经过凝胶渗透色谱净化。111种农药在Atlantis T3柱上以乙腈和0.1%甲酸溶液为流动相，梯度洗脱条件下完成分离，采用电喷雾电离串联质谱在正离子多反应监测模式下进行测定。
Methods Cyclohexane, ethyl acetate and glacial acetic acid (8∶8∶0.8) were used as the developing solvent. Samples were analyzed on a layer plate of silica gel G thin by using 20% phosphomolybdic acid as chromogenic agent.
以环己烷乙酸乙酯冰醋酸（体积比8∶8∶0.8）为展开剂，以羧甲基纤维素钠为黏合剂自制硅胶G薄层板，20％磷钼酸溶液为显色剂，进行薄层色谱分析。
Pure benzoic acid, methyl benzoate, and ethyl benzoate were hydrogenated to the corresponding cyclohexane carboxylic acid and its corresponding derivatives with quantitative conversion based on the amount of hydrogen absorbed.
纯苯甲酸、苯甲酸甲酯及苯甲酸乙酯，氢化后生成相应的环己甲酸及其衍生物；若根据所吸收之氢量计算，可得理论值。
Effective extractive agents include cyclohexane, acetonitrile, nitromethane, mixture of acetone and cyclohexane, mixture of ethyl acetate and butyl acetate and mixture of industrial alcohol and ethyl acetate.
并用萃取精馏法将其分离提纯。萃取剂可以是环己酮、乙腈、硝基甲烷、丙酮与环己酮的混合物，乙酸乙酯与乙酸丁酯的混合物或工业乙醇和乙酸乙酯的混合物。
The conditions of TLC were: the 2.5% silver nitrate folium, developer agent: cyclohexane-ethyl acetate-acetone (8 ∶ 1 ∶ 1); Developer: the solution of 5% vanillic aldehyde-concentrated sulfuric acid, displaying color in 105 ℃.
薄层色谱条件：2.5%硝酸银薄层板，展开剂环己烷-乙酸乙酯-丙酮（8∶1∶1），喷5%香草醛-浓硫酸溶液在105℃烘至显色。
To study the determination method for organic solvent residual of ethyl acetate and cyclohexane in A608.By Gc and with N, N-dimethyl formamide as solvent.
本文研究了A608中乙酸乙酯，环已烷二种有机溶剂的残留量测定方法。
The high purity cyclohexane oxide was cyclohexane oxide from 80% cyclohexane oxide by the reation with boron trifluoride ethyl ether, hydramine to produce high boiling point material.
介绍了用80%的环氧环己烷分别与三氟化硼乙醚、羟胺进行反应，将环氧环己烷中的戊醇、酮、醛生成高沸点产物，再进行精馏，从而获得高纯环氧环己烷的方法。
Organic chlorine using ethyl acetate-cyclohexane and gel purification column extraction purification, quartz capillary gas chromatography (ECD allocation) detection.
有机氯类用乙酸乙酯&环己烷和凝胶净化柱提取净化，石英毛细管气相色谱（配ECD检测器）检测。
The internal plasticizer was synthesized from maleic anhydride and 2-ethyl-hexanol as starting materials, cyclohexane as dehydrator using 1-methyl-3-butyl-imidazole/AlCl_3 catalyst.
以顺丁烯二酸酐和2-乙基己醇为原料，环己烷为带水剂在1-甲基3-丁基咪唑离子液体存在下制备了内增塑剂顺丁烯二酸二（2-乙基己）酯。
With cyclohexane-ethyl acetate (10:1) as the developing solvent, the separation effect is good, the Rf value after developing is moderate, and the spots are clear.
以环己烷-乙酸乙酯（10：1）为展开剂，分离效果好，展开后Rf值适中，斑点清晰。
The kinetics of the extraction of U (ⅵ) from phosphoric acid solution with di - (2-ethyl) phosphate (HDEHP) in cyclohexane is investigated using Lewis cell technique.
本文采用恒界面搅拌池法研究了磷酸介质中二-（2-乙基己基）磷酸-环己烷萃取U（Ⅵ）的扩散过程动力学。
The excess volumes of ethyl alcohol-cyclohexane, cyclohexane-n-heptane and n-heptane-ethyl alcohol binaries and the corresponding ternary have been measured at 298.15 K by using a continuous dilution dilatometer made in our laboratory.
用自制的连续冲稀膨胀计，在298.15K，测定了乙醇-环己烷、环己烷-正庚烷、乙醇-正庚烷三对二元系和相应三元系的过量体积。
Taking ethyl acetate-cyclohexane as the solvents, the test samples were extracted by means of ultrasonic oscillation treatment with ultrasonator, and then were directly determined by GC/NDP and GC/μ ECD.
样品使用乙酸乙酯-环己烷（50-50）为溶剂进行超声波萃取，采用GC/NDP和GC/μECD检测法测定。
My company can provide pesticide, medicine, veterinary medicine intermediates, have 48 kinds of products (p-Bromo-p-Bromotoluene bromoform 1 - bromo-heptane Triethyl Citrate 1, 2, 3 - three Bromopropane 3 - Chlorine -4 - fluoro bromobenzene Bromotoluene ethylbenzene 4 - bromo -2 - bromo-ethyl-Chloroaniline 2 - bromo--5 - chloro-toluene 3 - bromo-C methyl 1, 6 - dibromo-hexane 1 - bromo --4 - p-methoxy benzaldehyde o-bromo-acetic acid propyl bromide p-fluorotoluene dodecane four bromoethane of iodine bromide toluene tert-butane Tributyl Citrate 2 - bromo-p inter - Hydroxybenzaldehyde bromine butane 2 - bromo-propionic acid bromide veratryl aldehyde inter-bromo-trifluoro-n-hexane of toluene on Bromoxynil Bromotoluene toluene ethylbenzene o-bromophenol bromide Cyclohexane Cyclopentane bran bromate bromide Malay Dibutyl Ethyl Lactate Propylene between bromine bromine bromine between aniline o-anisidine o-fluorophenol difluorobenzonitrile to aminobenzaldehyde Bromotoluene aniline on Bromobenzaldehyde Bromotoluene acid) expressed the hope that customers contact us!
我公司可提供农药，医药，兽药中间体，有四十八种产品(对溴苯酚对溴甲苯溴仿 1-溴庚烷柠檬酸三乙酯 1，2，3-三溴丙烷 3-氯-4-氟溴苯对溴乙苯 4-溴-2-氯苯胺溴乙酸乙酯 2-溴-5-氯甲苯 3-溴丙酸甲酯 1，6-二溴己烷 1-溴-4-硝基苯邻甲氧基苯甲醛溴乙酸丙酯对氟甲苯溴代十二烷对碘甲苯四溴乙烷溴代叔丁烷柠檬酸三丁酯 2-溴氯苯间羟基苯甲醛溴丁烷 2-溴丙酸黎芦醛溴已烷间溴三氟甲苯对溴苯腈对溴乙苯邻溴甲苯溴代环已烷溴代环戊烷糠溴酸马来酸二丁酯溴丙烯乳酸乙酯间溴苯胺间溴苯甲醚邻氟苯酚邻氟苯腈对氨基苯甲醛对溴苯胺对溴苯甲醛对溴苯甲酸)希望广大客户与我司联系！
The main products are: HH-01 fungicides HH-02 organic dispersant HH-03 cationic starch Wood HH-04 cationic starch Department HH-05 modified starch warp sizing agents also sell German Baker Chemical Co., Ltd. Main Products Defoamer series product: E640, T50 Surface Sizing Agent: A281, A288, K532, pesticides/medicine/veterinary medicine a variety of intermediate products (p-Bromo-p-Bromotoluene bromoform 1 - bromo-heptane triethyl citrate 1, 2, 3 - Three Bromopropane 3 - chloro -4 - fluoro bromobenzene Bromotoluene ethylbenzene 4 - bromo -2 - bromo-ethyl-Chloroaniline 2 - bromo--5 - chloro-toluene 3 - bromo-methyl 1, 6 C - Dibromo Hexane 1 - bromo -4 - nitrobenzene o-methoxy benzaldehyde acid propyl bromide p-fluorotoluene bromo dodecane toluene four of iodine bromide bromoethane three citric acid tert-butane n-butyl 2 - bromo-p-bromo-butane Hydroxybenzaldehyde between 2 - bromo-propionic acid bromide veratryl aldehyde inter-bromo-trifluoro-n-hexane of toluene on Bromoxynil Bromotoluene toluene ethylbenzene o-bromophenol bromide bromide Cyclohexane Cyclopentane bran acid dibutyl maleate Ethyl Lactate Propylene between bromine bromine bromine between aniline o-anisidine o-fluorophenol difluorobenzonitrile to aminobenzaldehyde Bromotoluene aniline on Bromobenzaldehyde Bromotoluene acid) and other relevant units have been in substantial promotion, and client set up a good relationship of cooperation has been the user's praise.
现主要产品：HH—01杀菌剂 HH—02有机分散剂HH—03阳离子淀粉 HH—04木署阳离子淀粉 HH—05 经纱上浆变性淀粉同时还代理销售德国贝克化学公司系列产品主要产品消泡剂：E640、T50 表面施胶剂：A281、A288、K532，农药/医药/兽药中间体多种产品(对溴苯酚对溴甲苯溴仿 1-溴庚烷柠檬酸三乙酯 1，2，3-三溴丙烷 3-氯-4-氟溴苯对溴乙苯 4-溴-2-氯苯胺溴乙酸乙酯 2-溴-5-氯甲苯 3-溴丙酸甲酯 1，6-二溴己烷 1-溴-4-硝基苯邻甲氧基苯甲醛溴乙酸丙酯对氟甲苯溴代十二烷对碘甲苯四溴乙烷溴代叔丁烷柠檬酸三丁酯 2-溴氯苯间羟基苯甲醛溴丁烷 2-溴丙酸黎芦醛溴已烷间溴三氟甲苯对溴苯腈对溴乙苯邻溴甲苯溴代环已烷溴代环戊烷糠溴酸马来酸二丁酯溴丙烯乳酸乙酯间溴苯胺间溴苯甲醚邻氟苯酚邻氟苯腈对氨基苯甲醛对溴苯胺对溴苯甲醛对溴苯甲酸)等在相关单位得到了大量推广，与客户建立了良好的合作关系，得到了用户的赞誉。
Ophenyl phenol, ophenyl phenol sodium salt tetrahydrate, 7ADCA, 2ethyl phenyl hydrazine hydrochloride, 2, 3dihydrofuran, 7ethyl3(2hydroxy ethyl)indole, methyl ester of etodolac; 1, 8diethyl1, 3, 4, 9tetrahydropyrano[3.4b] indole1acetic acid methyl ester, 5chloro2methoxy benzoic acid, 4(2aminoethyl)benzene sulfonamide, 5cyano phthalide, phthalhydrazide, 9thioxanthenone, n[(1, 4benzodioxane2yl)carboxyl]piperazine HCL, 2chloro4amino6, 7dimethoxyquinazoline, 2chloro benzimidazole, 1(4fluorobenzyl)2chlorobenzimidazole, 2methylthio4pyrimidone, 5amino4imidazole carboxamide HCL, 6chloro2hexanone, 11oxo6.11hydrodibenzothiepin, 6, 11dihydrodibenzooxepin11one, 10, 11dihydrodibenzocyclohepten5one; dibenzosuberone, dibenzo cyclohepten5one; dibenzosuberenone, 3, 5dihydroxy benzoic acid, 3, 5dihydroxy benzyl alcohol, 2mercapto benzimidazole, 3, 4dihydroxy benzaldehyde, 3, 4dihydroxy benzonitrile, 2amino5chloro benzonitrile, 2(4chlorophenoxy)ethyl chloride, 2(4chloro phenoxy)tert, butane, ditrimethylol propane; DTMP, 2, 2bis(4hydroxyphenyl)butane; bisphenol B, 1, 1'bis(4hydroxyphenyl)cyclohexane; bisphenol Z, tetrabromobisphenolS, 3, 5ditertbutyl salicylic acid, 3, 4, 5trihydroxy benzoic acid stearyl ester, 1, 2, 4trimethoxybenzene.
华业公司产品：邻苯基苯酚，邻苯基苯酚钠盐，7氨基3去乙酰氧基头孢烷酸，邻乙基苯肼盐酸盐，2，3二氢呋喃，7乙基色氨醇，依托度酸甲酯，5氯2甲氧基苯甲酸，4(2氨乙基)苯磺酰胺，5氰基苯酞，双酮酞嗪，9噻吨酮，N〔(1，4苯并二恶烷2基)羰基〕哌嗪盐酸盐，2氯4氨基6，7一二甲氧基喹唑啉，2氯苯并咪唑，1(4氟苄基)2氯苯并咪唑，2甲硫基4嘧啶酮，5氨基咪唑4 甲酰胺盐酸盐，6氯2已酮，11氧6.11二氢苯并〔b.c〕虑平，11氧代6，11二氢二苯并氧杂卓，10，11二氢二苯并环庚烯5酮，二苯并环庚烯5酮，3，5二羟基苯甲酸，3，5二羟基苯甲醇，2巯基苯并咪唑，3，4二羟基苯甲醛，3，4二羟基苯腈，2氨基5氯苯腈，2(4氯苯氧基)1氯乙烷，2(4氯苯氧基)叔丁烷，双丙烷，2，2二(4羟基苯基)丁烷；双酚B，1，1'双(4羟基苯基)环己烷；双酚Z，2[3，5二溴4(2，3二溴丙氧基)]苯砜，3，5二叔丁基水杨酸，3，4，5三羟基苯甲酸十八烷基脂，1，2，4三甲基氧基苯。
The conditions of TLC were: the 2.5 % silver nitrate folium, developer agent: cyclohexane-ethyl acetate-acetone (8 ∶ 1 ∶ 1); Developer: the solution of 5 % vanillic aldehyde-concentrated sulfuric acid, displaying color in 105 ℃.
薄层色谱条件：2.5%硝酸银薄层板，展开剂环己烷-乙酸乙酯-丙酮（8∶1∶1），喷5%香草醛-浓硫酸溶液在105℃烘至显色。
The internal plasticizer was synthesized from maleic anhydride and 2-ethyl-hexanol as starting materials, cyclohexane as dehydrator using 1-methyl-3-butyl-imidazole / AlCl_3 catalyst.
以顺丁烯二酸酐和2-乙基己醇为原料，环己烷为带水剂在1-甲基3-丁基咪唑离子液体存在下制备了内增塑剂顺丁烯二酸二（2-乙基己）酯。
Nanjing Nissan Series Benzotriazole agent: Benzotriazole, methyl benzotriazole, benzotriazole sodium salt, methyl benzotriazole sodium chloride Tianjin middle agent: zinc chloride Kunlun card:-26 liquid nitrile rubber, nitrile rubber powder -40 professional wholesale operators: N-methyl pyrrolidone, dimethylformamide solvent imports Series: The United States UCC Products, BASF Products: Second ether propylene glycol, diethylene glycol ether alone, glycol ether, propylene glycol ether, diethylene glycol ethyl ether, three ethylene glycol ether, glycol ether three Dow or the British Book: 1 ethanolamine, diethanolamine, triethanolamine (99.00%), polyethylene glycol 400, polyethylene glycol 600 series of organic solvents: dimethylformamide, cyclohexane, methyl Central Hexane, propylene glycol, glycerol, ethylene glycol, the propylene glycol, tetraethylene glycol, diethylene glycol shrinking one, three glycol surfactant Series: Hamm, Germany: NP-10, AEO9, TX-10, OP-10, NP-15, AES Guangzhou Tel: TEL:020-825626958256243513719003870 FAX:020-82562271 Contact: Mr. Xie 13719003870 Mr. Yang 15602280358 Miss Li 15920397249 Login: Http:// www.
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