液相氫化 的英文怎麼說
中文拼音 [yèxiāngqīnghuà]
液相氫化
英文
liquid phase hydrogenation-
The protected amino acids were z - ser ( bzl ), boc - asp ( obzl ) and glu ( obzl ) 2. the quality of the synthesized tripeptide : ser - asp - glu ( sde ) by thin layer chromatography, amino acid analysis and liquid chromatography - mass spectrometry is pure. the paam beads with different length arms were obtained by coupling the various length linear spacer, such as ethylene diamine, glutaraldehyde, 1, 6 - diaminohexane and amino caproic acid to paam beads
按照從梭基端到氨基端的合成路線,用風n 』二環己基碳二亞胺( dcc ) l羥基苯驕三氮哩( hobt )液相合成法逐步接肽,制備得到對應的帶保護基的中間體,用催化氫化還原脫去所有的保護基。Determination of hydrocortisone in feeds high - performance liquid dhromatography
飼料中氫化可的松的測定高效液相色譜法Analysis f k and na in nepheline were curried out with higher precision and repeatability by means of adding fluohydric acid during sample melting to remove sio2, adjusting the ratio of k and na in the solution to reduce the mutual interference of the two elements, and adding cesium chloride to eliminate ionization interference
摘要本方法用於測定霞石中的鉀、鈉,主要通過在溶樣時加入氫氟酸除去二氧化矽,調整溶液中鉀、鈉的含量,消除互相之間的干擾,加入氯化銫消除電離因素的干擾,提高了分析結果的準確性和重現性,使測定結果更接近化學分析值。Analysis of k and na in nepheline were curried out with higher precision and repeatability by means of adding fluohydric acid during sample melting to remove sio2, adjusting the ratio of k and na in the solution to reduce the mutual interference of the two elements, and adding cesium chloride to eliminate ionization interference
摘要本方法用於測定霞石中的鉀、鈉,主要通過在溶樣時加入氫氟酸除去二氧化矽,調整溶液中鉀、鈉的含量,消除互相之間的干擾,加入氯化銫消除電離因素的干擾,提高了分析結果的準確性和重現性,使測定結果更接近化學分析值。Soil quality. determination of polynuclear aromatic hydrocarbons. method using high - performance liquid chromatography
土壤質量.多核芳香碳氫化合物的測定.高性能液相色譜法Study on hydrogen - tritium exchange reaction of tritiated tetramethyl pyrazine
液相氚化川芎嗪的氚氫交換反應Acts as a disinfectant on both bacteria and viruses likely to be encountered in the home 3 ) generally whitens fabrics the bleaching action of sodium hypochlorite is essentially completed in about 5 minutes, even less time in hot water, but slightly longer in cold. the dry version performs like liquid sodium hypochlorite bleach when dissolved in water
過氧化氫于酸性時安定,但在酸性溶液時會分解產生初生態的氧,在緘性溶液中,具有強烈的漂白力,對纖維沒有很大的脆化作用,但是羊毛蠶絲等,于長時間浸漬時,會產生相當的脆化。Mgb2 can be cooled by liquid hydrogen or liquid neon or by fairly cheap, closed - cycle refrigerators that can readily reach below 20 k
硼化鎂可以藉由液態氫、液態氖或是相當便宜的封閉循環式冷凍機,輕易降溫至20k以下。The theoretic cycle capacity of limno2 is 286 mah g - 1, which has attracted a great deal of people to research. aim at the impurity of limno2 which was synthesized by the predecessor and the phase change during the electrochemical process, we try several methods, including wet moist chemical method, liquid state method, solide state method and liquid dipping method. at the same time, we study the synthesis of limnc > 2 in defferent atmosphere, for example air, argon and nitrogen
Limno _ 2具有286mah ? g ~ ( - 1 )的理論容量,這種高容量材料深受廣大研究者的關注,針對前人合成出的還有少量雜相和在電化學循環過程中出現相變四川人學碩l :學位論文的問題,我們嘗試了幾種合成方法:濕化學法、液相法、固相法和溶液浸漬法,並在不同氣氛:空氣、氮氣和氫氣中進行limnoz的合成研究。Water has higher melting point, boiling point, heat of vaporization, heat of fusion and surface tension than comparable hydrides such as hydrogen suiphide or ammonia or most liquids
與氫硫化物、氨水或其他大多數的液體相比,水具有較高的熔點、沸點、蒸發比熱、熔解熱和表面張力。This paper stuffed with twelve important grain and vegetable crops, studied the injury symptom, dose reaction, injury threshold value and influential factor of main pollutant so2 on various plants, tested the dynamic transformation of pod, cat, mda, soluble protein, free pro and chlorophyll of resistant plant and sensitive of these physiological biochemical transformation with plant resistant ability. meanwhile, simply studied the protective role of the five compounds on plant. the result indicated the followings
本實驗以12種重要的糧食和蔬菜作物為研究對象,研究了主要大氣污染物二氧化硫( so _ 2 )對不同植物的傷害癥狀、劑量反應、傷害閾值以及影響因素,測定了抗性和敏感植物在受到so _ 2污染后植物體內過氧化物酶( pod ) 、過氧化氫酶( cat ) 、丙二醛( mda ) 、可溶性蛋白質、游離脯氨酸和葉綠素的動態變化,並分析了這些生理生化變化和植物抗性的相互關系,同時還對5種化合物溶液對植物的保護作用進行了初步研究,結果表明: 1Foodstuffs - determination of ochratoxin a in cereals and cereal products - high performance liquid chromatographic method with bicarbonate clean up
食品.穀物和穀物製品中赭麴黴素a的測定.重碳酸氫鹽凈化高性能液相色譜法The development of liquid - phase oxidation of alkane under mild conditions was introduced, which includes the utilization of oxidants such as organic peroxide, ozone, hydrogen peroxide, molecular oxygen and air, and catalytic oxidative systems such as homogeneous, heterogeneous, and mimetic peroxidase catalytic systems
摘要介紹了在溫和條件下烷烴的液相氧化進展,包括利用有機過氧化物、臭氧、過氧化氫、氧氣和空氣為氧化劑,利用均相催化劑、多相催化劑和模擬酶催化劑組成的催化氧化體系。Starch derivatives - determination of the composition of glucose syrups, fructose syrups and hydrogenated glucose syrups - method using high - performance liquid chromatography
澱粉衍生物.葡萄糖漿果糖漿和氫化葡萄糖漿的組成測定.高效液相色譜法These water ligands are very loosely attached ? if hydrogen peroxide is also in the solution, a molecule of it easily replaces one of the water molecules
這些水分子配位基的鍵結力相當弱,所以只要溶液里有過氧化氫,輕而易舉就可以取代其中一個水分子。Abstract : based on the react kinetics in the synthesis of chloromethane by the method of hydro - chlorinating methanol in gas - liquid phase and the experiment of cold mould, the technique parameters synthesizing chloromethane were defined. by using advanced process of refinement and condensation, the engineering level of synthesizing chloromethane was greatly enhanced
文摘:通過對氣液相甲醇氯氫化法生產氯甲烷的反應動力學及冷模試驗的研究分析,確定氯甲烷合成的工藝參數,同時採用了先進的產品精製及冷凝技術,使氯甲烷生產水平產生了質的飛躍。In this article, the method of pgc302 ( fid detector ) process gas chromatograph on measuring of hydrocarbons in air separation plant is introduced
摘要介紹了用pgc302氣相工業色譜儀( fid檢測器)直接測定空分裝置液態氧中碳氫化合物的分析方法,該方法具有自動化程度高,靈敏度精密度好等優點。Cumene isopropyibenzene for industrial use - determination of content of phenols and cumene hydroperoxide - high performance liquid chromatographic method
工業用異丙苯中酚類化合物和過氧化氫異丙苯含量的測定高效液相色譜法Testing of mineral oil hydrocarbons and similar liquids ; determination of the grade of purity by gas - chromatography ; n - heptane, iso - octane and toluene
礦物油碳氫化合物及類似液體的檢驗.用氣相色譜法測定And the optimized technology for preparing ni ( oh ) 2 was as follows : the ratio of h2c2o4 / naoh was 1 / 2. 5, grinding for 20min, aging in 9mol / l koh solution for 2h at 40c, and dispersing with ultrasound in water media
而進行固相反應時的最佳工藝條件為:草酸鎳于氫氧化鈉的用量比為1 : 2 . 5 ,研磨20min ,在40的9mol lkoh溶液中陳化2h ,在水介質中超聲分散。分享友人