羥基化作用 的英文怎麼說
中文拼音 [qiǎngjīhuàzuòyòng]
羥基化作用
英文
hydroxylation-
Uses : used as desizing agent and bleach activator ; used in the oxidation and degradation of waste materials in pools and the closed and circling water ; used in modification of starch, production of bonds and coating materials ; used in the oxidation of alcohol and linalool ; used as an essential component of bleaching formulations for hair cosmetics
用途:用於脫漿劑和漂白活性劑;用於水池及封閉循環處理水中有害物質的氧化降解;是生產澱粉的調節劑,並應用於粘合劑的塗料生產中;用於支鏈氧化、乙醇和芳香族羥基氧化;染發劑的基本成分之一,起脫色作用。This is attribu ted to more surface hydroxyl groups on the surfaces containing calcium and phosphorus than tatinium surface and stong chemical reaction of calcium or phosphate on the surfaces with phosphate or calcium in the simulated biological environment
一方面是因這兩種表面都較無鈣、磷表面含有更多表面羥基:另一方面,則由於表面鈣或磷在模擬生理環境中與磷或鈣之問的化學作用。A butylated hydroxyanisole or butylated hydroxytoluene or mixtures thereof within the limits specified in part ii of this schedule may be used in conjunction with propyl gallate or octyl gallate or dodecyl gallate or mixture thereof within the limits specified, provided that the total amount of antioxidant shall not exceed, in the case of anhydrous oils and fats and vitamin oils and concentrates, and partial glycerol esters, 300 parts per million, in the case of butter for manufacturing purposes, 240 parts per million and in the case of essential oils and isolates from the concentrates of essential oils, 1000 parts per million
A不超逾本附表第ii部所指明分量的經丁化作用的羥基茴香醚或經丁化作用的羥基甲苯或其混合物,可與不超逾指明分量的丙基?酸鹽或辛基?酸鹽或十二烷基?酸鹽或其混合物同時使用,但添加於無水食油及脂肪維他命油及其濃縮物及部分丙三醇酯的抗氧化劑總分量,不得超逾百萬分之300 ,添加於作製造用途的牛油的抗氧化劑總分量,不得超逾百萬分之240 ,而添加於香精油及香精油濃縮物的分離物的抗氧化劑總分量,則不得超逾百萬分之1000 。The experimentation and study showed that fine synergism could be produced between hydroxyl p ( vc - vac ) and pu molecules, so the composite material not only is of good electricity insulativity, mechanical behavior, but also high viscosity and fast safe character, and so on
研究結果表明:羥基化的氯醋樹脂與聚氨酯復合產生良好的協同作用,使該復合材料具有良好的電絕緣性。The field surveys and lab experiments tvere designed to study the distribution and source of pah " poliution in x " ater, sediment ; the pah " concentration and distribution in marine fish organ ( of the fish lateolabimjapo ) 1iclls and pagivsonills inajor ) ; the pah " bcf factors of liver and bile in marine fish ( laleolabral jtwo ) 1itits and pag7vso ) ) ills ) ) 1ajbr ) ; the reiationship between pah " exposure and biochemicai response ( cat sod, lpo ) and the metabolic rate of naphthalene and pyrene in fish bile
4優化了魚膽汁中1 ?羥基萘和1 ?羥基芘的熒光分析方法,測定了1 ?羥基萘和1 ?羥基芘在鱸魚、真鯛膽汁中的含量,探討了萘和芘在魚膽汁中的代謝比率、清除作用。結果顯示: ( 1 )膽汁中萘的代謝比率低,易蓄積;而芘的代謝比率高,易清除。There were limited reports about the metabolism catalyzed by ugt1a9. ugt1a9 mainly catalyze the glucuronidation of hydroxyl to produce o - glucuronide. besides, ugt1a9 also catalyze the glucuronidation of carboxyl and hydroxylamine compounds
有關ugt1a9的代謝作用研究不多,從文獻報道來看, ugt1a9主要催化羥基上的綴合反應,形成o -葡醛酸苷,此外它也能與羧基、羥肟酸形成葡醛酸苷。The catalytic activity of ( hmbp ) 2ticl2was lower than - diketonate titanium catalysts. the catalytic activity of dinuclear - diketonate titanium catalysts was comparative to mononuclear ones. however, the dinuclear - diketonate titanium catalyst showed the synergism effect, for example, the lower catalyst concentration and the molar ratio of al to ti, the activity reached the maximum value at 80, the melting temperature of polymer was enhanced
2 -羥基苯酮鈦[ ( hmbp ) _ 2ticl _ 2 ]的催化活性低於-二酮鈦類催化劑;雙核催化劑在催化活性方面與對應單核催化劑相差不多,但在聚合規律上表現出與單核催化劑不同的雙核協同作用,如聚合所需的催化劑濃度、助催化劑甲基鋁氧烷mao量降低,活性在80時出現極值,熔點提高等,而且雙核催化劑是單活性中心催化劑。Especially, when - bi together with a little carbon black ( cb ) or copper salt is used, the catalytic effect is better ; the flame structures of the double - base propellants containing - bi are similar to the typical plateau double - base propellant, but the combustion temperature distribution has been changed because of adding the - bi ; and the active components of catalysts deposit on the burning surface of propellants and the quenched surfaces of propellants with various catalysts possess different structure
它與銅鹽和少量炭黑( cb )復合后,催化效果更優; 2 , 4 -二羥基苯甲酸鉍加入后,推進劑的火焰結構保持了典型平臺雙基推進劑的結構特徵,但改變了雙基推進劑燃燒波溫度分佈,炭黑和銅鹽的加入對2 , 4 -二羥基苯甲酸鉍的催化作用有很大影響;催化劑分解的活性組分富集在燃燒表面,不同催化劑使推進劑熄火表面形成不同的結構。Through strength tests and xrd tests for cemented stone, the paper presents action mechanism of the nanometer materials in the cement hydration and hardening process : pozzolanic effect, filling effect, acceleration action for the cement hydration, and improving action for microstructure. from the four aspects, the modified mechanism of the nanometer silica fume and ordinary silica fume in cement paste are compared. the analysis results show that the particular properties of the nanometer silica fume include particle fineness, crystal structure and surface hydroxy, etc. a serial of laboratory tests are performed to study physical and mechanic properties of the clay with the addition of the nanometer silica fume
結合水泥石強度試驗和xrd試驗,從火山灰效應、填充效應、水泥水化促進作用和微結構改善作用等方面探討了三種納米礦粉在水泥水化硬化過程中的作用機理;從這四個方面出發,對比分析了納米硅粉和普通硅粉作用機理的異同點,分析表明,納米硅粉的優異特性主要表現為顆粒細度、晶體結構、表面羥基等特性。B preparations containing more than 100000 i. u. s vitamin a per gram are allowed to have in them or on them only 10 parts per million for each 1000 i. u. s vitamin a per gram of butylated hydroxyanisole b. h. a
每克含超逾100000個國際單位維他命a的配製品,其中每1000個國際單位維他命a只可含百萬分之10的經丁化作用的羥基茴香醚或經丁化作用的羥基甲苯或其任何混合物。According to the preservatives in food regulations cap. 132bd, permitted antioxidants in specified food include only propyl gallate octyl gallate dodecy gallate, butylated hydroxyanisole, butylated hydroxytoluene and ethoxyquin. tbhq is not specified in the said regulations and it is not a permitted antioxidant in fats and oils in hong kong
食物內防腐劑規例第132bd章規定,獲準添加於指明食物的抗氧化劑只限於丙基?酸鹽辛基?酸鹽十二烷基?酸鹽經丁化作用的羥基茴香醚經丁化作用的羥基甲苯及乙氧基奎。Catalyst for ethanol synthesis. the results show that the reactive metals rh and mn are fixed on the catalyst surface by the interaction with si - oh, which can enhance the stability of highly dispersed metals. rh and mn interact with each other to form the acitve site with high ethanol synthesis activity. the surface si - oh was found to be of significance on the preparation of catalyst with high catalytic activity
的性質,結果表明,活性金屬銠及錳經浸漬法擔載于載體上后即與表面羥基作用使金屬固定在氧化硅的表面上,保證了高度分散活性金屬的穩定性高度分散中的銠錳相互結合,構成了乙醇合成中的高活性位研究發現表面硅羥基在催化劑制備過程中起著重要作用。The sjab can be determined in the rang of 0. 32 - 19. 00 ng - ml " 1. ( 3 ) in chapter 3, we reported that the cyclic voltammetric behavior of l - o - allyl - 4 - hdroxy - anthraquinone ( oahaq ) in an aqueous medium and electrochemical characteristic of complex of oahaq and bsa. the complex reaction can be used to probe the interaction between these species and to electrochemical determine bsa
00ug 』 ml 」 』濃度范圍內對r本血吸蟲抗體進行了定量檢測3 )在第3章報導了在l o烯丙基4羥基蔥酮( oahaq )水溶液中加入bsa , omaq的循環伏安行為的變化情況,並可用來探測這些物種之間的相互作用關系以及用The results show the relative reactivities of three second hydroxyl groups on steroids skeleton of methyl cholicate are different to the three kinds of acylating agents
結果顯示,與三種活性不同的酰化試劑作用時,膽酸甲酯分子甾體骨架上三個仲羥基的相對反應活性不同。Water quality - physical, chemical and biochemical methods - determination of selected phenoxyalkanoic herbicides, including bentazones and hydroxybenzonitriles by gas chromatography and mass spectrometry after solid phase extraction and derivitization
水質.物理化學和生物化學法.固相萃取和衍生化作用后氣相色譜質譜法測定包括苯達松和羥基苯甲晴在內的選擇性苯氧烷類鋤草劑But there ' s another compound in the blood ? 27 - hydroxycholesterol, or 27hc ? that can also attach to the same receptors but doesn ' t trigger the protective benefits for the heart, according to a study of mice published yesterday in nature medicine
昨天在自然醫學雜志上發表的對鼠的一項研究表明血液中存在另一種化合物- 27 -羥基膽甾醇,或27hc -它同樣能夠和相同的受體結合而不觸發對心臟的保護作用。Propofol and paracetamol are compounds that have phenol hydroxyl and propranolol and propafenone are those that have aliphatic ones. among the four compounds, propofol is the specific substrate of ugt1a9 and can be served as the comparison reference of enzymatic activity. based on the study of four compound, four kinds of isoflavone compounds, i. e., quercetin, kaempferol, isorhamnetin and
在上述四種化合物研究的基礎上,考用類黃酮化合物對叭xs有各種影響,並且具有各種酚羥基結構,本實驗選擇了四種類黃酮化合物即們皮素、山費酚、異鼠辛素和蘆丁作為底物,觀察ix ; 1 』 iag對它們代謝的作用情況,試圖了解ijgtiag在這些化合物的葡醛酸代謝過程中所起的作用。In order to investigate the effect of 2, 4 - dihydroxylbenzoate ( - bi ) on the combustion of double - base propellant, the combustion law of the propellants containing - bi was studied by means of the single frame amplification photography fl miniature thermocouple, the scanning electron microscopy ( sem ) and the link isis energy spectrum
摘要為了探索2 , 4 -二羥基苯甲酸鉍對雙基推進劑燃燒的催化作用,採用單幅放大彩色攝影法、型微熱電偶技術、掃描電鏡和電子能譜研究了含2 , 4 -二羥基苯甲酸鉍雙基推進劑的燃燒規律。Standard test method for hydroxyl groups by phthalic anhydride esterification
用酞酸酐的脂化作用測定羥基團的試驗方法Or any mixture of b. h. a. and b. h. t
經丁化作用的羥基甲苯或分享友人