- 更多网络例句与丙酮氯仿相关的网络例句 [注:此内容来源于网络,仅供参考]
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Results: Using of handy infrared gas spectrometer, the ammonia, sulphur dioxide, acetone, butanone, ethyl acetate, chloroform, benzene, toluene, methyl alcohol, ethyl alcohol, isopropanol, and other harmful gases can be carried out quickly Online Testing. The arsine, hydrogen chloride, hydrogen cyanide, hydrogen sulfide can not be detected online.
结果:可利用便携式红外气体分析仪对氨、二氧化硫、丙酮、丁酮、乙酸乙酯、氯仿、苯、甲苯、甲醇、乙醇、异丙醇等有害气体可进行快速的在线检测,不能对砷化氢、氯化氢、氰化氢、硫化氢进行快速在线检测。
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Soluble in hexane, can be dissolved in acetone, ethyl ether and chloroform.
易溶于已烷,可溶于丙酮,乙醚,氯仿。
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It is easily soluble in water, acetone and alcohol, slightly soluble in ether, ethyl acetate, chloroform, and pyridine, unsoluble in benzene.
熔点151℃~154℃。易溶于水、丙酮与醇,微溶于醚、乙酸乙酯、氯仿和吡啶,不溶于苯。
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Properties White powder, inodorous, non-toxic, soluble in dilute alkali solution, carbon disulfide, benzene, acetone, dichloromethane and a little soluble in chloroform, insoluble in alcohol, carbon tetrachloride and ethyl acetate.
性质 白色粉末。无毒、无味。溶于稀碱、二硫化碳、苯、丙酮和二氯甲烷,微溶于氯仿,难溶于乙醇、四氯化碳、醋酸乙酯。
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Macerate 1.0g of the powdered sample with 20.0 ml of chloroform plus 0.3ml of 25% NH_4 OH in a glassstoppered flask overnight.
本文报道用不含粘合剂的氧化铝薄层,以二甲苯-丙酮-无水乙醇-二乙胺(50:40:10:0.6)为展开剂分离茄科植物中的莨菪碱、东莨菪碱、山莨菪碱、樟柳碱及红古豆碱等五种莨菪烷生物碱,用改良Dragendorff试剂-Wagner试剂(1:1)显色,定量收集莨菪碱、东莨菪碱及山莨菪碱的斑点,莨菪碱和东莨菪碱用氨甲醇洗脱,蒸干洗脱液后分别用pH 5.6及pH 4.5的溴甲酚绿溶液作比色测定;山莨菪碱用4%醋酐氯仿洗脱,蒸干洗脱液后用pH 5.6的溴甲酚绿溶液作比色测定。
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Properties: colorless needle-like crystals, melting point 105 ~ 106 ℃, optical rotation +51 °(c = 0.978, chloroform), other reports shows that by ethanol recrystallization the melting point 104 ~ 105 ℃, methanol re - the formation of solvate crystal melting point 84 ℃.it is Soluble in acetone, chloroform, insoluble in ether, petroleum ether, insoluble in water.
性质:无色针状结晶,熔点105~106℃,旋光度+51°( c=0.978,氯仿),还有报道经乙醇重结晶熔点104~105℃,经甲醇重结晶形成的溶剂化物熔点84℃。易溶于丙酮、氯仿,难溶于乙醚、石油醚,不溶于水。
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Chemiluminescent immunoassay is one of the advanced immunoassay ofnon-radioisotopic immunoassay because of its high sensitivity, wide dynamic range,high accuracy, stable labeled protein, full automation and extensive application field.CLIA using acridinium ester derivatives as chemiluminescent label has advantages oflow background, high signal-to-noise ratio, no need of catalyst and simpleluminescence system. Different aspects associating the DMAE·NHS-based CLIA were studied in thisthesis, including synthesis of acridinium ester, chemiluminescentcharacteristics of DMAE·NHS, labelling antibody or streptavidin with DMAE·NHS,two-site sandwich chemiluminescent immunoassay for TSH, two-sitesandwich chemiluminescent immunoassay involved biotin-streptavidinsystem for TSH, and competitive chemiluminescent immunoassay usingbiotin-streptavidin system for TT〓. The desired acridinium ester, DMAE·NHS, was synthesized according to thereference method with some modifications. The products were identified by IR, NMR,MS and elemental analysis. In our method, KOH was used in place of NaOH tosynthesize benzyl ester of 3,5-dimethyl-4-hydroxybenzoic acid,2',6'-dimethyl-4'-(n-succinimidyloxycarbonyl) phenyl-acridinium-9-carboxylate waspurified on a silica gel column with chloroform/ethylacetate(4:1, v/v) as eluent andfurther purified by triturating with hexane/acetone(2:1, v/v).
DMAE·NHS的合成是本论文的关键和难点,我们对文献方法进行改进:文献方法用氢氧化钠与3,5-二甲基-4-羟基苯甲酸反应制得3,5-二甲基-4-羟基苯甲酸钠,再用3,5-二甲基-4-羟基苯甲酸钠与苄氯作用制备3,5-二甲基-4-羟基苯甲酸苄酯,我们用氢氧化钾代替氢氧化钠,使合成取得成功;在合成2',6'-二甲基-4'-苯基-吖啶-9-甲酸酯时,文献方法对粗产品进行两次硅胶柱层析纯化,第一次柱层析用氯仿/乙酸乙酯(4∶1,V∶V)作溶剂和淋洗剂,第二次柱层析用己烷/丙酮(2∶1,V∶V)作溶剂和淋洗剂,按照文献方法得到的不是所需要的化合物,我们只进行第一次柱层析纯化,然后用己烷/丙酮(2∶1,V∶V)进行研磨,过滤,洗涤,除去溶于己烷/丙酮(2∶1,V∶V)的部分,得到所需要的产品。
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Different concentration methanol-, acetone-, ether-, and chloroform extracts of Corallina pilulifera were used to study their growth inhibitory effects on red tide microalgae Heterosigma akashiwo.
研究了不同浓度的小珊瑚藻组织4种不同极性有机溶剂(甲醇、丙酮、乙醚、氯仿)提取物对赤潮异弯藻的生长抑制作用。
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The products were identified by IR,NMR,MS and elemental analysis. In our method,K.OH was used in place of NaOH to synthesize benzyl ester of 3,5-dimethyl-4-hydroxybenzoic acid,2',6'-dimethyl-4'-(n-succinimidyloxycarbonyl) phenyl-acridinium-9-carboxylate was purified on a silica gel column with chloroform/ethylacetate(4:l,v/v) as eluent and further purified by triturating with hexane/acetone(2:l,v/v).The luminescence produced by DMAE-NHS is a flash light with maximumemission at 0.4s and decay half-time of 0.9s. The luminescence intensity is 6.11x10 cps/mol,which is affected by the composition of trigger and surfactant.
DMAE·NHS的合成是本论文的关键和难点,我们对文献方法进行改进:文献方法用氢氧化钠与3,5-二甲基-4-羟基苯甲酸反应制得3,5-甲基-4-羟基苯甲酸钠,再用3,5-二甲基-4-羟基苯甲酸钠与苄氯作用制备3,5-二甲基-4-羟基苯甲酸苄酯,我们用氢氧化钾代替氢氧化钠,使合成取得成功;在合成2',6'-二甲基-4'-苯基-吖啶-9-甲酸酯时,文献方法对粗产品进行两次硅胶柱层析纯化,第一次柱层析用氯仿/乙酸乙酯(4:1,Ⅴ:Ⅴ)作溶剂和淋洗剂,第二次柱层析用己烷/丙酮(2:1,Ⅴ:Ⅴ)作溶剂和淋洗剂,按照文献方法得到的不是所需要的化合物,我们只进行第一次柱层析纯化,然后用己烷/丙酮(2:1,Ⅴ:Ⅴ)进行研磨,过滤,洗涤,除去溶于己烷/丙酮(2:1,Ⅴ:Ⅴ)的部分,得到所需要的产品。
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Methods The derivation with dansyl chloride was followed by normal-phase chromatography with a mobile phase of acetone/chloroform (2:98) at a flow rate of 1 mL/min and with the detection wavelength set at 425nm.
唾液经纯化、丹酰氯衍生化后用苯提取,以Hypersil BDS CN为正相色谱柱,丙酮-氯仿(2:98)为流动相,流速1 mL/min进行测定,检测波长为425 nm。
- 更多网络解释与丙酮氯仿相关的网络解释 [注:此内容来源于网络,仅供参考]
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acetone chloroform:丙酮氯仿 偕三氯叔丁醇
acetone body | 酮体> | acetone chloroform | 丙酮氯仿 偕三氯叔丁醇 | acetone extract | 丙酮提取物
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acetone chloroform:[医] 丙酮氯仿
1318acetone-bromofone[医] 丙酮溴仿 | 1319acetone-butyl alcohol fermentation[化] 丙酮丁醇发酵 | 1320acetone-chloroform[医] 丙酮氯仿
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acetone chloroform:丙酮氯仿,氯丁醇
acetone body 酮体 | acetone chloroform 丙酮氯仿,氯丁醇 | acetone cyanohydrin 丙酮合氰化氢,丙酮氰醇
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acetone cyanohydrin:丙酮合氰化氢,丙酮氰醇
acetone chloroform 丙酮氯仿,氯丁醇 | acetone cyanohydrin 丙酮合氰化氢,丙酮氰醇 | acetone cyanohydrin poisoning 丙酮合氰醇中毒
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photosensitizer:光敏剂
13.光敏剂(photosensitizer)本类药物能增加皮肤对光线的敏感性,促进皮肤黑素的生成. 用于治疗白癜风、银屑病等. 常用的有补骨脂素的衍生物,可配成溶液. 防风主要含有8-甲氧基呋喃香豆素和5-甲氧基呋喃香豆素,可配成%~0.5%氯仿、丙酮、乙醇混和液,
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toluene:有机溶剂 甲苯
沸点80.1C,极易挥发,蒸气比重为2.77.自燃点为562.22C,爆炸极限为1.4%~8%.易着火.微溶于水,易溶于乙醇,氯仿,乙醚,汽油,丙酮,二硫化碳等有机溶剂.甲苯 (toluene),二甲苯 (xylene)均为无色透明,
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trinitrotoluene:三硝基甲苯
易挥发的液体.甲苯沸点110.40C,蒸气比重3.90.二甲苯有邻位,间位和对位三种异构体,其理化特性相近;沸点8.4一144.40C,蒸气比重3.66,均不溶于水,可溶于乙醇,丙酮和氯仿等有机溶剂.三硝基甲苯 (trinitrotoluene)有六种同分异构体,通常所指的是2,
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Sinomenine:盐酸青藤碱
盐酸青藤碱(Sinomenine) 分子式:G19H23 NO3 分子量:329.38 异名:清风藤碱,防己碱,毛防己碱. 物理性质:溶於乙醇,丙酮,氯仿和稀碱,微溶於水,乙醇和苯(针状结晶) 植物来源:青藤碱(Sinomenine)是从青藤或汉防己.
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acetone chloroform:丙酮氯仿 偕三氯叔丁醇
acetone body || 酮体> | acetone chloroform || 丙酮氯仿 偕三氯叔丁醇 | acetone extract || 丙酮提取物
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acetone chloroform:丙酮氯仿,氯丁醇
acetone body ==> 酮体 | acetone chloroform ==> 丙酮氯仿,氯丁醇 | acetone cyanohydrin ==> 丙酮合氰化氢,丙酮氰醇