高選擇性溶劑 的英文怎麼說
中文拼音 [gāoxuǎnzháixìngróngjì]
高選擇性溶劑
英文
high-selective solvent- 高 : Ⅰ形容詞1 (從下向上距離大; 離地面遠) tall; high 2 (在一般標準或平均程度之上; 等級在上的) above...
- 選 : Ⅰ動詞1. (挑選) select; choose; pick 2. (選舉) elect Ⅱ名詞(挑選出來編在一起的作品) selections; anthology
- 擇 : 擇動詞(挑選) select; pick; choose
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 溶 : 動詞(溶化; 溶解) dissolve
- 劑 : Ⅰ名詞1 (藥劑; 制劑) a pharmaceutical or other chemical preparation 2 (某些有化學作用的物品) a...
- 選擇 : select; choose; opt; election; choice; culling; alternative
- 溶劑 : dissolvant; solvent; resolvent; solventia; menstruum
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In this study a microbial system for biphenyl biodegradation is set up in order to investigate the effects of surfactants on biodegradation of hydrophobic organic compounds. four strains which can grow on biphenyl as the sole carbon and energy sources are selected out, in which alcaligenes eutrophus dj1 and pseudomonas sms02 are chosen as degradation strains. after studing the bioavailability of three nonionic surfactants ( op - 10, tween - 80, and triton x - 100 ), they are added into the biodegradation system of biphenyl
為了考察表面活性劑對疏水性有機污染物生物降解的影響,本論文選擇聯苯作為模擬研究體系,篩選、馴化得到四株可利用聯苯作為碳源生長的菌株;考察了聯苯降解菌株對三種非離子表面活性劑op - 10 、 tween - 80 、 tritonx - 100的生物可利用性;用高效液相色譜法測定了非離子表面活性劑對聯苯的增溶曲線;較系統地研究了加入非離子表面活性劑對聯苯生物降解速率的影響。Solvent refined a refining technique to improve the quality of based oils using selective extraction of undesirable components by means of solvents
溶劑精製-利用溶劑作為于段(利用溶劑方式? ) ,有選擇性地萃取不需要的組份,進而提高基礎油質量的一種精製工藝。For example, when the gaas substrate is etched by h2so4 - h2o2, h2o2 is adopted to oxidate the substrate first, then the substrate was etched by means of laser wet etching in h2so4 solvent. theoretical analysis and experimental results show that compared with the mixed - solvent - etching, more smooth etched surface can be obtained by this method ; and because the substrate is preprocessed, time of laser induced wet - chemical etching
理論分析和實驗結果都表明,次序選擇腐蝕法可以有效地提高腐蝕表面的均勻性;因先對基片進行化學腐蝕處理,大大縮短了激光化學腐蝕的時間;使溶劑先後分別作用於基片,可以提高激光化學腐蝕溶劑配比的精度容差,使激光化學腐蝕控制和分析更加簡單。The petroleum chemical industry with the activated charcoal evengrain - size distribution, the high benzene adsorption dynamics, wear - resisting, resists corrosion, the selective adsorption performance isoutstanding, mainly uses in the petroleum, the natural gas and thecarbonificated industry vapor phase live pressure adsorption, theliquid phase separation, the solvent recovery, the liquid and the gasproduct purifies, and is mad in the fluid product organic sulfideremoveing
均勻的粒度分佈,高的苯吸附力,耐磨、耐蝕,選擇吸附性能優異,主要用於石油、天然氣及煤化工業的汽相變壓吸附,液相分離,溶劑回收,液體及氣體產品凈化,及氣液產品中的有機硫化物的去除。The experimental results indicated that the colour - changing ranges got narrow, and the titration accuracy was increased when an appropriate surfactant micellar solution was chosen as a titration medium
實驗結果表明,表面活性劑存在時,酸堿指示劑的離解平衡及其變色范圍將發生改變,選擇適當的膠束溶液作為滴定介質,可以擴大酸堿指示劑的應用范圍,同時也可以提高滴定的準確度。A novel aqueous two - phase system can be formed by the mixtures of a polymer and cationicanionic surfactants. such a system can be used as a partitioning system of proteins. in this work, we investigated the formation, phase behavior and protein partitioning in aqueous two - phase systems formed by dodecyltriethylammonium bromide / sodium dodecylsulfate / peg and dodecyltriethylammonium bromide / sodium dodecylsulfate / dextran. the ligands with affinity were attached to the polymers and the affinity partitioning of proteins was investigated. it was shown that the surfactants and polymers are enriched in different phases of aqueous two - phase systems. phase separation are promoted by increasing temperature and adding inorganic salts. different proteins are partitioned in different phases. the selectivity of protein partitioning is increased by adding ligands with affinity
報道了由正負離子表面活性劑與高聚物混合溶液形成的一種可用於蛋白質的分離及分析的新型雙水相萃取體系.研究了正負離子表面活性劑(溴化十二烷基三乙銨/十二烷基硫酸鈉)分別與葡聚糖和聚乙二醇混合雙水相體系的形成規律、相行為及牛血清蛋白和溶菌酶在雙水相體系中的分配.通過在高聚物分子中接上親和配基,研究蛋白質在雙水相體系中的親和分配.結果表明,在該體系中,表面活性劑與高聚物分別富集於不同相中.升高溫度及加入無機鹽均可促進雙水相體系的形成,不同蛋白質可分配于不同的相中.親和配基的引入極大地增強了蛋白質分配的選擇性The amount of catalyst can be reduced by selecting nice solvability catalyst, cutting down the remnant carboxyl amount of esterification and elevating polycondensation temperature
選擇溶解性能好的催化劑,降低酯化殘存羧基量,提高縮聚溫度,可減少催化劑用量。Cheanyeh cheng, shiang - rong tsai ( 2002 ), “ enantioselective reduction of phenyl n - propyl ketone in saccharomyces cerevisiae mediated biphasic culture ”, the 7th international symposium for chinese organic chemists, national tsing hua university
鄭建業,蔡向榮( 2001 ) , 「以掌性選擇性高效液相層析探討1 -苯基- 1 -丁酮之水/正己烷二相溶劑系統中生物還原反應」 ,中國化學會九十年度年會,國立成功大學,臺南市Abstract : the method of using formaldehyde buffer solution a b sorption - hydrochloric pararosaniline spectrophotometry to determine sulfur diox ide in air has higher sensitivity and good selectivity, and prevents from adoptin g mercurial absorbent. but the conditions in lab are not well controlled, the v alue of reagent blank and standard curvilinear slope can ' t accord with the one s tipulated in “ methods for air and waste gas monitoring and analysis ”. some opra tional techniques for so2 determination in lab are introduced for reference
文摘:以甲醛緩沖溶液吸收-鹽酸副玫瑰苯胺分光光度法測定空氣中的二氧化硫,方法靈敏度高,選擇性好,避免了使用含汞的吸收液,但如果實驗條件控制不好,試劑空白值及標準曲線的斜率就會不符合《空氣和廢氣監測分析方法》中規定的值,本文著重從操作技巧方面對二氣化硫測定的實驗室質量控制進行分析,僅供參考。Corresponding soluble salts have been chosen as raw materials and ammonia as precipitator. the optimum ph value is 8. 5 - 10 and higher concentration is helpful for crystal growth. the perovskite phase plzst can be synthesized at 750 by solid state reaction
合適的工藝條件為:選擇以各離子的可溶性鹽為原料,以氨水為沉澱劑,通過共沉澱得到白色無定型前驅體,最佳的ph值范圍為8 . 5 10 ,溶液的濃度越高越有利於固相反應合成中晶體的形成,適當的沉澱后處理過程如水洗、干磨能促進plzst晶體的生成。分享友人