酚
- 与 酚 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
The crystal is constructed with binuclear units, in which the two copper atoms are bridged by two phenolic oxygen atoms.
晶体分子中,两个Cu通过酚氧原子连在一起,Cu1处于两个N原子、两个酚氧原子形成的平面四方形中,Cu2处于同一平面,配位原子为两个酚氧原子和两个端基羧氧原子
-
Four kinds of aromatic ether-linked dinitriles with low melting temperatures were obtained via the nucleophilic substitution of hydroquinone, resorcinol, biphenol and bisphenol A with CBN. They were polymerized to afford a series of poly(pheny-s-triazine)s under the optimized conditions.
以对苯二酚、间苯二酚和联苯二酚为原料,分别与对氯苯腈进行亲核取代反应,合成了三种较低熔点的含醚键二腈,并分别研究了其在优化条件下的聚合反应。
-
A series of sulfonated poly(arylene thioether/ether phosphine oxide)s was prepared by direct polycondensation of sBFPPO and BFPPO with the diphenol-type or dimercapto-type monomers such as hydroquinone, bisphenol-A, 4,4'-biphenol, 4,4'-diphenol (6F), 1,5-dihydroxynaphthalene, 4,4'-dihydroxybiphenyl, and 4,4'-thiobisbenzenethiol, respectively.
将BFPPO与sBFPPO分别与多种二羟基或二巯基单体,如对苯二酚、双酚A、4,4'-二苯酚、双酚F、1,5'-二羟基萘、4, 4'-二羟基二苯硫醚和4,4'-二巯基二苯硫醚,直接共聚制备了一系列磺化聚芳醚三苯基氧膦,侧重考察了二羟基和二巯基单体结构单元对产物的耐氧化性能的影响。
-
Mission:"equality and mutual benefit, reputation first, unity and cooperation and friendship between the long-term" supply products: ethylenediamine; diethylamide; triethylamine; Diethylenetriamine; three ethylene diamine; three ethylene amines 40; 40 Five ethylene amines; five ethylene amines 6; caprolactam; DMF; allyl amine; N, N dimethylaniline; propylamine; are butylamine; are TOA; 3 Poly Cyanamide; 1,2 c diamine; ethanolamine; diethanolamine, triethanolamine; potassium iodide, potassium hydroxide, potassium permanganate, toluene, xylene, toluene of chlorine ; Acetone, butanone; acetylacetone; ethyl acetate, butyl acetate; Y-butyrolactone; DMC; acetyl of methyl acetate; Sanfu acetyl acid; Sanfu acetyl B Ethyl; methanol, ethanol, isopropanol; propylene glycol; glycerol; propargyl alcohol; 1.3 propylene glycol; xylitol; acetic acid; have acid; mercaptoacetic acid; vary Bitterness; adipic acid; trifluoroacetic acid; oxalic acid, the amino acid; o-amygdalin acid; DL-Acid; anhydrous piperazine; six non-piperazine, furfural, castor oil, ethylene Aldehyde; glutaraldehyde, multi-POM; isopropyl ether; anisole; tetrahydropyrrole; pure pyridine; 1.2 dichloroethane; methylene chloride, chloroform, carbon tetrachloride; hydrazine hydrate; Nonylphenol;-m-cresol; Se phenol; phenol; the tert-butyl phenol; Titanium Dioxide; iron; full Tangfen; Bisphenol A; azo two different nitrile; sodium azide; sodium carbonate ; Sodium chloride; iron oxide; cuprous chloride; thionyl chloride; D4; sodium bicarbonate; ammonia, potassium chloride; anhydrous sodium sulphite; ammonium persulfate; glycol Dingmi; B Glycol ether; calcium chloride; cyclohexanone; cyclohexane, methyl tertiary butyl ether, potassium carbonate, ferric chloride, potassium nitrate; Linsuansanna; zinc oxide; sodium nitrite; antimony oxide; Tartrate; OP-10; TX-10; tablets base; AES; sodium benzoate, sodium citrate; partial sodium silicate, sodium perborate, a sodium carbonate, sodium benzene; Asia sodium chlorate; Wuluo Care products; urea; hydrochloric acid, sulfuric acid, lactic acid; amino acid, hydrogen peroxide, ammonium bicarbonate
公司宗旨:&平等互利,信誉至上,团结合作,友谊长久&乙二胺;二乙胺;三乙胺;二乙烯三胺;三乙烯二胺;三乙烯四胺;四乙烯五胺;五乙烯六胺;己内酰胺;二甲基甲酰胺;烯丙基胺;N,N二甲基苯胺;正丙胺;正丁胺;正辛胺;三聚氰胺;1,2丙二胺;一乙醇胺;二乙醇胺;三乙醇胺;碘化钾;氢氧化钾;高锰酸钾;甲苯;二甲苯;对氯甲苯;丙酮;丁酮;乙酰丙酮;醋酸乙酯;醋酸丁酯;Y-丁内酯;碳酸二甲酯;乙酰乙酸甲酯;三伏乙酰乙酸;三伏乙酰乙酸乙酯;甲醇;无水乙醇;异丙醇;丙二醇;丙三醇;丙炔醇;1.3丙二醇;木糖醇;冰醋酸;己醛酸;巯基乙酸;异辛酸;己二酸;三氟乙酸;乙二酸;对氨基苯乙酸;邻氯苦杏仁酸;DL-扁桃酸;无水哌嗪;六无哌嗪;糠醛;蓖麻油;乙二醛;戊二醛;多聚甲醛;异丙醚;苯甲醚;四氢吡咯;纯吡啶;1.2二氯乙烷;二氯甲烷;三氯甲烷;四氯化碳;水合肼;壬基酚;纯间甲酚;硒酚;苯酚;对叔丁基苯酚;钛白粉;铁粉;全糖粉;双酚A;偶氮二异丁腈;叠氮化钠;碳酸钠;氯化钠;三氧化二铁;氯化亚铜;氯化亚砜;D4;碳酸氢钠;氨水;氯化钾;无水亚硫酸钠;过硫酸铵;乙二醇丁醚;乙二醇乙醚;氯化钙;环己酮;环己烷;甲基叔丁基醚;碳酸钾;三氯化铁;硝酸钾;磷酸三钠;氧化锌;亚硝酸钠;氧化锑;酒石酸;OP-10;TX-10;粒碱;AES;苯甲酸钠;柠檬酸钠;偏硅酸钠;过硼酸钠;过碳酸钠;苯磺酸钠;亚氯酸钠;乌洛托品;尿素;盐酸;硫酸;乳酸;氨基磺酸;双氧水;碳酸氢铵
-
On the basis of spectral analysis, these compounds were identified as Kaempferol , Kaempferol-3-O-β-D-glucopyranoside , Kaempferol-3-O-β-D-galactopyranoside, Quercetin , Quercetin-3-O-β-D-arabinopyranoside, Quercetin-3-O-β-D-galactopyranoside, gallic acid, methyl gallate-4-O-β-D- galactopyranoside, caffeicacid, methyl caffeate, 4-cafeoyl-(3"a, 4"a, 5"β)- trihydroxyquinic acid, 3"-cafeoyl-(3"a, 4"P, 5"P )-trihydroxyquinic acid methyl ester, 5"-cafeoyl-galactonic acid , pumiloside, loganic acid , 5R,6S,7E-megastima-3-on-7-en-9-ol 9-O-β-D-glucopyranoside. 2a, 3β-dihydroxy-oleanoic acid , 2a, 3β, 23-trihydroxy-oleanoic acid, 3a, 6a-dihydroxy-oleanoic acid, 3β-hydroxy-ursoic acid, 2a, 3a, 23-trihydroxy-ursoic acid , 2a, 3β, 23-trihydroxy-ursoic acid, 2β, 3β, 19a -trihydroxy-ursoic acid, 2a , 3β, 19a -trihydroxy-ursoic acid-28-O-β-D-glucopyranoside , 2a. 3a, 19a-trihydroxy-ursoic acid-28-O-β-D-glucopyranoside, 2a, 3a, 19a, 23-tetrahydroxy-ursoic acid, 1a, 3a, 19a, 23-tetrahydroxy-ursoic acid-28-O-β-D-glucopyranoside , 3a, 19a, 23-trihydroxy-ursoic acid.
从珙桐中分离鉴定得到了28种化合物,它们分别是:山奈酚,3-O-β-D-吡喃葡萄糖基-山奈酚甙,3-O-β-D-吡喃半乳糖基-山奈酚甙,槲皮素,3-O-β-D-吡喃阿拉伯糖基-槲皮素甙,3-O-β-D-吡喃半乳糖基-槲皮素甙,没食子酸,4-O-β-D-吡喃半乳糖基-没食子酸甲酯,咖啡酸,咖啡酸甲酯,4-咖啡酰基-(3&α,4&α,5&β)-三羟基鸡纳酸,4-咖啡酰基-(3&α,4&β,5&β)-三羟基鸡纳酸甲酯,5'-咖啡酰基-半乳糖酸,pumiloside,loganic acid,5R,6S,7E-megastima-3-on-7-en-9-ol9-O-β-D-glucopyranoside,2α,3β-二羟基齐墩果酸,2α,3β,23-三羟基齐墩果酸,3α,6α-二羟基齐墩果酸,3β-羟基熊果酸,2α,3α,23-三羟基熊果酸,2α,3β,23-三羟基熊果酸,2β,3β,19α-三羟基熊果酸,2β,3β,19α-三羟基熊果酸-28-O-β-D-吡喃葡萄糖甙,2α,3α,19α-三羟基熊果酸-28-O-β-D-吡喃葡萄糖基甙,2α,3α,19α,23-四羟基熊果酸,2α,3α,19α,23-四羟基熊果酸-28-O-β-D-吡喃葡萄糖基甙,3α,19α,23-三羟基熊果酸。
-
Was studied by Folin Ciocalteu colorimetry. The results showed that polyphenol content of C. album could be well calculated according to their colorime tric absorption at 765nm by applying Folin Ciocalteu reagent 1.5mL and 10% Na2CO3 6 mL,2 h at 30℃ for colorimetric reaction, and the linear range of standard curve was 7-70mg/L.The method established was very convenient, stable and accurate.Key words: Canarium album Rauesch.;polyphenol;colorimetry
结果表明:橄榄多酚提取液在加入Folin Ciocalteu试剂1.5 mL,10% Na2CO3 6 mL,反应时间2 h,温度30℃的条件下进行显色,并于765 nm处测定其吸光值,多酚质量浓度在7~70mg/L范围内与吸光值有良好的线性关系,根据此线性回归方程进行橄榄多酚的定量测定,该方法简单方便,稳定性好,准确度高。
-
Xylem: Chinese P.chinensis Bge 49.15mg/g, Atlantic Ocean 46.58mg/g, UCB 55.28mg/g. 3.In certain condition, Gas-chromatograms and Mass spectrum are use to identifie phenol. Pistacia vera L .leave contain pyrocatechol 0.7640mg/g, pyrogallol 0.0580mg/g, gallic acid 1.03024mg/g, catechin 0.1040mg/g and coumaric acid by different pre-treatment methods.
采用不同方法提取阿月浑子叶片酚类物质,气相色谱-质谱法对其进行定性与定量分析,阿月浑子叶片中含有邻苯二酚0.7640mg/g;邻苯三酚0.0580mg/g;没食子酸1.3024mg/g;儿茶素0.1040mg/g,香豆酸;确定了最佳的前处理方法。
-
A series of organic reversible thermochromic materials are prepared using bromocresolpurple as chromophoric reagent,aromatic compound with hydroxyl(hydroquinone,bisphenol A,1-naphthol)as delomorphic rea- gent and hexadecanol as solvent.
以溴甲酚紫为发色剂,含羟基的芳香族化合物(对苯二酚、双酚A和1-萘酚)为显色剂,十六醇为溶荆制备了有机可逆热变色材料。
-
Twelve regular copolyesters were synthesized by solution polycondensations of the four monomers with hydroquinone, chlorohydroquinone, 4,4'-dihydroxy biphenyl. The copolyesters were characterized by polarized microscope with hot stage, DSC and X-ray diffraction.
将上述单体与对苯二酚、氯代对苯二酚以及联苯二酚用溶液缩聚的方法合成了十二种规则共聚酯,并用热台偏光显微镜、DSC、X-衍射等方法对共聚酯进行了表征。
-
The effects of reaction temperature, space velocity and the molar ratio of H2O2 to phenol on the concentration of diphenol product, the ratio of catechol to hydroquinone and reactive period of catalyst were investigated.
在连续全混反应器中,用含铁复合金属氧化物催化剂,研究了反应温度、空速、过氧化氢/苯酚对反应产物中苯二酚浓度、邻苯二酚/对苯二酚比例和催化剂的活性周期的影响。
- 推荐网络例句
-
Do you know, i need you to come back
你知道吗,我需要你回来
-
Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.
1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。
-
Chapter Three: Type classification of DE structure in Sino-Tibetan languages.
第三章汉藏语&的&字结构的类型划分。