冰醋酸
- 与 冰醋酸 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Kenaf phloem bundle fiber layers were separated with a acidified sodium chlorite treatment with an additional ammonium oxalate treatment.
采用亚氯酸钠冰醋酸和草酸铵处理,将不同部位的红麻韧皮部束纤维进行分层,并-测定各束纤维层的纤维细胞长度,探讨红麻韧皮部纤维细胞长度的分布规律。
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Since there are real demands to the fine powder of expansible graphite in the market, it was studied that glacial acetic acid were inserted into 2μm5μm micro-graphite using potassium dichromate, potassium permanganate, or ammonium persulphate as oxidant and acid as medium to get FPEG low expansible volume successfully.
针对目前对低膨胀容积的可膨胀微粉石墨的实际需求,本论文研究了在酸性条件下,以重铬酸钾、高锰酸钾或过硫酸铵为氧化剂,成功地将冰醋酸插入2μm5μm石墨层间,制得低膨胀容积的可膨胀微粉石墨。
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Starch acetates with different degrees of substitution were synthesized by reaction of corn starch and acetic acid/acetic anhydride catalyzed with concentrated.
以浓硫酸作催化剂,玉米淀粉为原料,冰醋酸和醋酸配为改性剂,合成了不同取代度的玉米淀粉醋酸酯。
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OO from the beginning of a three-year sales of chemical raw materials, specific printing ink, printing ink, sodium hydroxide, liquid (30-50%) hydrochloric acid, electrical cleaning agents, electrical agents, detergents, bactericidal Algicide, corrosion inhibitors, scale inhibitors, polyacrylamide (cation-anion), toluene, glacial acetic acid, such as bleaching, aluminum-based industries to the production of chemical raw materials used.
从二OO三年开始化工原料的销售,具体有印刷油墨、印刷水墨、氢氧化钠、液碱(30-50%)盐酸、电器清洗剂、电器保护剂、除垢剂、杀菌灭藻剂、缓蚀剂、阻垢剂、聚丙烯酰胺、甲苯、冰醋酸等漂染、铝型才行业的生产用化工原料。
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Treatment of the diacetoxy-calix [4] arene with a series of ditosylates in dry MeCN in the presence of NaOH resulted in formation of electron-rich calix [4] areneocrowns, which reacted with 4, 4'-bipyrindinium and p-bis -benzene at room temperature in dry MeCN to afford self-assembling [2] catenanes by π-π stacking interaction.
以杯[4]芳烃为原料,通过三氟乙酸铊将其氧化成醌,醌类化合物在Zn粉、冰醋酸、少量盐酸和过量的乙酸酐中反应得到双乙酰化产物,利用氢氧化钠使其水解,然后再与各种对甲苯磺酸二酯进行环化反应,得到一系列具有富电子空腔的杯[4]芳烃并冠醚。
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Analysis was carried out on a Hypersil ODS2 column(4.6 mm×250 mm,5 μm) with acetonitrile-0.1% glacial acetic acid as the mobile phase,and eluates were detected by an evaporative light scattering detector.
采用Elite Hypersil ODS2(4.6 mm×250 mm,5μm)色谱柱,乙腈-0.1%冰醋酸水溶液为流动相梯度洗脱,流速1mL.min-1,以蒸发光散射检测器检测,记录70 min色谱图。
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In synthesizing process, the optimum quanta of hydrogen peroxide solution and glacial acetic acid which affect epoxide number were determined.
对合成过程中影响环氧值的两个重要条件:即双氧水和冰醋酸的用量做了大量实验,确定了最佳条件。
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Objective To establish HPLC-UV method for determination of glycyrrhizin acid in compound nasal spray of glycyrrhizin and flower flos magnoliae,the chief active ingredient of formulation,glycyrrhizin acid,and to observethe therapeutic effect of this formulation on guinea pig's hypersensitive rhinitis.Methods A compound nasal spray formulation was prepared using extracts of glycyrrhizin and measured by HPLC-UV method.Mobile phase conˉsisted of methanol,0.2mol/L ammonium acetate and glacial acetic acid(67:33:1,v/v),analytical column was Zorbax ODS C 18 and wavelength250nm.
目的 建立测定复方甘草和辛夷喷雾剂含量的方法并观察该制剂对豚鼠超敏性鼻炎的疗效方法以甘草提取的甘草甜素和辛夷花蒸馏提取液主药制备成鼻用喷雾剂,用反相高效液相色谱法测定制剂中甘草酸含量,检测波长为250nm,Zorbax ODS C 18 分析柱,流动相为甲醇:0.2mol/L醋酸铵:冰醋酸(67:33:1)。
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The company mainly produces all kinds of softeners, detergents, penetrants, surfactants, antistatic agents, acetic acid, staining acid, soap lotion, oil go yarn agent, the end mixture, cotton, such as leveling agent used.
公司主要生产各种柔软剂、洗涤剂、渗透剂、表面活性剂、抗静电剂、冰醋酸、染色酸、皂洗剂、去油污纱剂、终合剂、棉用匀染剂等。
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Methods: Perchloric acid and glacial acetic acid were volumetric solution. Crystal violet was indicator.
通过微型滴定和常规滴定对比,高氯酸冰醋酸(0.1 mol/L)为滴定液,结晶紫为指示剂,用非水滴定法测定马来酸氯苯那敏的含量。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力