無硫酸的 的英文怎麼說
中文拼音 [wúliúsuānde]
無硫酸的
英文
sulfate-free-
The barium sulfate must be a lump-free powder.
硫酸鋇必須是無塊的粉末。Shake - flask culture condition of lysine fermentation were studied with czl. appropriate feeding of organic niteogen sources was favorable for fermentation jn our experiment, the concentations of the yeast extract and beef extract were 15g / l and 25g / l. the initial ( nh02so4 and glucose concentrations suitable for fermentor production ranged form 55g / l and 150 - 180g / l respectively
通過搖瓶發酵實驗初步確定czl的發酵條件為：初糖： 150 - 180g / l ，採用無機氮源和有機氮源配和使用，最佳組合是：硫酸銨質量濃度為55g / l ；酵母膏質量濃度為15g / l ，牛肉膏質量濃度為25g / l為最佳。Research on synthesis and performance of inorganic high polymer coagulent poly - silicate of aluminium ferric sulphate
無機高分子混凝劑聚硅硫酸鋁鐵的合成及其性能的研究In adding - acid system : the resistivities of different lithotypes " cp tend towards being constant and equal when weight percentage of aniline exceeds 50 % ; because of the structure difference of different lithotypes, the polymerizing places and processes are different ; the resistivities of vituain / pan and fusain / pan reach the lowest point respectively when ( ntloisiog / an is 0. 6, 1. 0 ; the resistivities of cp decline fast and tend towards being constant along with the reduction of diameter of coal. in not adding - acid system : the resistivities of different lithotypes ' cp decline evenly ; it is found on the crossed experiment of cp, that ( nflsaog / an mole proportion is the most important factor to influence output ratio of cp and the weight percentage of aniline is the most important factor to influence resistivities of cp. according to the result of the crossed experiment of cp
在有外加酸體系中：苯胺百分含量大於50時，不同煤巖組分的電阻率趨于恆定和一致；由於不同煤巖組分結構上的差異，導致苯胺聚合場所和聚合過程的不同；當過硫酸銨/苯胺摩爾比為0 . 6 ， 1 . 0時，鏡煤-聚苯胺導電材料電阻率和絲炭-聚苯胺導電材料的電阻率分別達到最低值；在無外加酸體系中：不同煤巖組分/聚苯胺導電材料的電阻率隨著聚合時間的增加而均勻下降，並在8小時左右達到恆定；在對絲炭-聚苯胺導電材料進行的正交試驗中發現：過硫酸銨/苯胺摩爾比對產率的影響最大，苯胺重量百分比對產率影響最小，而對產物電阻率影響最大的是苯胺重量百分比。A new method on extraction of phenanthrene from crude anthraceneis given, which includes azeotropic dissolution with ethylene glycol, extraction of carbon tetrachloride, treatment of sulfuric acid and ethyl alcohol recrystallization, in the end, the best process is obtained
研究了從粗蒽中提取菲的方法，即用乙二醇對原料進行共沸，以四氯化碳為溶劑並用硫酸處理，最後用無水乙醇重結晶，制定出最佳的工藝路線Abstract : a new method on extraction of phenanthrene from crude anthraceneis given, which includes azeotropic dissolution with ethylene glycol, extraction of carbon tetrachloride, treatment of sulfuric acid and ethyl alcohol recrystallization, in the end, the best process is obtained
文摘:研究了從粗蒽中提取菲的方法，即用乙二醇對原料進行共沸，以四氯化碳為溶劑並用硫酸處理，最後用無水乙醇重結晶，制定出最佳的工藝路線The optimum conditions for air electrode preparation were shown as follow : 20 % ptfe and 20 % mno2 in active layer, thickness of active layer 0. 15 - 0. 25mm and the ratio of active carbon to ethine black 4 : 1 ; 60 % ptfe in the gas diffusion and waterproof layer, employing na2so4 as pore - making agents, thickness 0. 35 - 0. 45mm, colding forming and layer sequence catlytic layer / gas diffusion and waterproof layer / current collector layout ; employing 40 meshed nickel screen as current collector and thermal treatment temperature over 200
確定了制備空氣電極的優化工藝條件，催化層中ptfe含量約20 ， mno _ 2的最佳含量約為20 ，催化層中活性炭和乙炔黑的比例為4 ： 1 （質量比） ，厚度在0 . 15 - 0 . 25mm之間。防水透氣層中ptfe的含量約為60 ，以無水硫酸鈉作為造孔劑，厚度一般為0 . 35 - 0 . 45mm 。電極各層採用催化層/防水透氣層/集流體的排布方式，冷壓成型，熱處理對空氣電極的性能影響較大，熱處理溫度不低於200 。The process parameters of preparing nanosized titanium dioxide powders were systematically studied by electrochemical synthesis experiments at room temperature. the rutile phase and anatase phase powders were obtained in the sizes of 9. 7nm and 9. 2nm respectively, and the complete crystal powders were formed after calcined at 400 for two hours. in the process of experiments it was observed that the low current density resulted in rutile phase powders, while the addition of little amount of ions of sulfate promoted the formation of anatase phase powders
在本實驗條件下，小的電流密度有利於金紅石相的生成，而少量硫酸根離子的引入對生成銳鈦礦相粉體有利，調整電流密度大小和引入硫酸根離子的量，可以得金紅石型和銳鈦礦型的混合混體；研究無定型粉體，銳鈦礦相粉體以及金紅石型粉體隨溫度的粒徑變化情況時發現，粉體在400以前晶粒長大相對緩慢， 400以後晶粒粗化現象嚴重。Preparation for polysilicon acid polyferric sulfatecoagulant
無機高分子混凝劑聚硅硫酸鹽的制備Making sensitive material : made in non - sulfur vulcanization system with the formula : epdm 100kg, dicumylperoxide ( dcp ) 2kg as cross - linking agent, stearic acid 1kg as processing aid, oxidized zinc ( zno ) 3kg as accelerant, wax oil 10kg as lubricant ; and made in vulcanizing condition : vulcanizing temperature 170 c, vulcanizing time 15minutes, vulcanizing pressure 3 mpa, the vulcanized epdm is optimal sensitive material for petrol. the sensing head equipped with the vulcanized rubber possesses two qualities : better swelling response and better anti - interfere against temperature variation
敏感材料的制備：用無硫硫化體系；配方為：生膠100kg ， dcp2kg ，硬脂酸1kg ， zno3kg ，石蠟油10kg ；硫化條件：硫化溫度170 ，硫化時間15分鐘，硫化壓力3mpa ，制備的硫化橡膠對汽油的監測較理想，用其裝備的傳感頭不僅有較好的溶脹響應性能，而且有很好的抗溫變干擾能力。Standard test method for determination of inorganic salt content of sulfated and sulfonated oils
硫酸化油和磺酸化油的無機鹽含量測定的標準試驗方法Study on synthesis of trioxa diaza schiff base crown dtdc
無水硫酸銅催化酯化反應性能的研究Several kinds of inorganic solid proton conductors including zirconium phosphates, heteropolyacids ( hpa ) and hydrogen sulfates and three kinds of methods such as hybrid solid casting, exchange - precipitation process and sol - gel process which can incorporate the inorganic solid proton conductors in pems were introduced
摘要主要介紹了目前摻雜質子交換膜用的幾種無機質子導體磷酸鋯、雜多酸、硫酸氫鹽等，並進一步介紹了將這些無機質子導體引入到聚合物中的3種摻雜方法：混合澆鑄法、離子沉澱法和溶膠凝膠法。Preparation of non - sulphur expanded graphite by hno3 h3po4 mixed acid system
混酸系無硫膨脹石墨的制備Water quality - determination of total mercury by flameless atomic absorption spectrometry - part 1 : method after digestion with permanganate - peroxodisulfate
水質.用無火焰原子吸收光譜法測定總汞含量.第1部分:用高錳酸鉀-過氧二硫酸鹽煮解后的方法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 total rna was purified from the germ in the liquid by the guanidine isothiocyantehod method, then the total rna digested by dnase that had not rnase was used for rt - pcr. i change the magnesium ion dencity in the pcr system in order to optimize the pcr condition. at the end i selected the magnesium ion density as 1. 25 mm. the production of rt - pcr was inserted directionally into pgem ? z ( ampr ). the pgem ? z ( ampr ) was used to transform e coli jm109. i got a positive clone through culling and identificatin. the dna sequence inserted into pgem ? z ( ampr ) was sequenced and blasted with the cdna sequence of the # - mannanase mature peptide that got from genbank
分取誘導培養液中的菌體，用異硫氰酸胍法提取總rna ，總rna再經無rna酶的dna酶處理後用于rt ? pcr 。在pcr擴增目的基因時，通過優選擴增體系，使鎂離子濃度為1 . 25mm時rt ? pcr可順利地獲得目的基因，並能定向克隆到載體pgem ? 3z （ amp ~ r ）中。用克隆載體轉化宿主大腸桿菌jm109 ，通過篩選獲取陽性克隆子，對陽性克隆子進行酶切與pcr鑒定，並對載體中插入的目的基因進行測序。One 66kd band appeared except 44kd main band when go isozyme above was subjected to sds - page and ce - sds, indicating this go isozyme was similar to that from spinach leaves which contained 40kd and 66kd simultaneously. whether b - mercaptoethanol was added or not when go isozyme was subjected to in sds - page and ce - sds, 40kd main band and 66kd band still appeared, indicating two subunits were not linked by covalent disulfide. amino acid analysis shew that the ratios of basic to acidic amino acid of go isozyme and its 40kd acidic subunit were 0
菜心go同工酶的sds - page和sds -毛細管電泳（ ce - sds ）顯示，該酶除了含40kd主帶外，還有很淺的66kd帶，和之前我們提出的菠菜go同工酶含40kd酸性亞基和66kd堿性亞基相似； sos - page和ce - sds電泳中，無論加入-巰基乙醇與否， go同工酶都只有40kd主帶和66kd淺帶，表明菜心go同工酶中40kd酸性亞基和66kd堿性亞基不是以共價二硫鍵相連；用制備性sds - page法獲得菜心go同工酶的40kd亞基，並和菜心go同工酶一起測定其氨基酸組成，該go同工酶及40kd亞基的堿酸性氨基酸的比例分別為0 . 66和0 . 54 ，表明40kd亞基可能是個酸性蛋白，而66kd帶則是個堿性蛋白。Based on the theory of chemical process, a novel method of electrophoyesis had been introduced and employed to synthesize expandable graphite successfully
所以，文章從化學法制備工藝的原理入手，引入電泳插層的新制備工藝，在無硫酸介入反應條件下成功地合成了可膨脹石墨製品。In order to find an effective process for fabricating exfoliate graphite without sulfur, the different methods have been investigated in this paper
本文從膨脹石墨的制備工藝出發，旨在找尋一種在無硫酸的介入下制備膨脹石墨的工藝，達到無有害硫殘余的目的。分享友人