濾過的溶液 的英文怎麼說
中文拼音 [lǜguòderóngyè]
濾過的溶液
英文
filtered solution-
Through the analysis of contest experimental test questions from 1995 to 2003, it is found that metage, synthesis, standardization and determination are the characteristics of these years " experimental test questions. chemistry experiment is based on the elementary knowledge, especially checking the usage of suction pipet and buret. the core of questions lies on the basic operation of metage, dissolution, suction, refluxing, filter, wash and titration
通過對1996 - 2003年化學競賽決賽實驗題進行分析得出: 「稱量?合成?標定?測定」是近幾年實驗試題的特點;化學實驗重在基礎,特別是考察移液管和滴定管的使用;基本操作如稱量、溶解、移液、回餾、抽濾、洗滌、滴定等是實驗考查的重點。The filter cake from the primary filtration is slurried with weak liquor from the secondary filters.
一段過濾得到的濾餅與二段過濾得來的稀溶液混合而成為料漿。It set up the development of the world recognized high performance nanofiltration composite membrane of aromatic polyamide, on the basis of reviewing the development, the importance in the membrane separation technology, the classification, the fabrication technique and the current development of the research and the application of the nanofiltration membrane. polysulfone was chosen as the material for making the porous substrate because of its excellent compress - to - denseness resistance, its cheap price and its great availability. by fabricating an ultra thin polyamide functional layer on the polysulfone substrate through interfacial polymerization taking piperazine as the monomer in aqueous phase and trimesoyl chloride as the monomer in organic phase, high performance nanofiltration composite membranes of ultra low pressure and ultra high permeating flux were prepared
選擇耐壓密性能優良,價廉易得的聚碸材料為制備復合膜基膜材料,哌嗪為水相單體,均苯三甲酰氯為有機相單體,通過界面聚合反應在基膜表面形成超薄功能層,制備了超低壓高通量聚哌嗪均苯三甲酰胺聚碸納濾復合膜,以0 . 1 mgso _ 4溶液為測試液,所得高脫鹽平板復合膜( )在0 . 4mpa下,脫鹽率為96 . 1 ,通量達85 . 2lThe method of concentrating the decoloration solution of tylosin is usually carried out by thin film vacuum concentration. in this experiment, the concentration process is modified by using the nanofiltration membrane technique which is free from corrosive due to the extractant solvent and in the same time, heating and decomposition of the antibiotic are eliminated, the concentration course ia also distinctly shortened. in this process the small molecule can be filtered by water, and the quality of the product such as, the tyramine content, the solubility of the product, improved significantly. in addition, the membrane filtration process could save consumption of steam and cooling water
泰樂星提煉過程中原工藝脫色液用薄膜真空濃縮,本試驗改進為耐溶媒納濾膜濃縮,料液不需要加熱即可濃縮,防止了料液的高溫分解破壞,濃縮收率明顯提高在濃縮的同時,部分小分子雜質可以隨水分子一起通過納濾膜而除掉,成品質量明顯提高,解決了用原工藝成品酪胺、溶解度不合格的質量問題省去了原工藝濃縮中費用較高的蒸汽、冰鹽水,經濟效益可觀。The dual - bath coagulation method suggested by j. a. va n ' t hof could be used in membranes with high selectivity clearance rate of low - molecular weight substances and moderate water flux theoretically. therefore it may be applied in the field of hemofiltration. to improve and optimize the performance of the pes ultrafiltration membrane applied in the hf, here the flat membranes and hollow fiber ( hf ) membranes are made in certain conditions based on the dual - bath coagulation method where pes is used as the membrane material, dmso as solvent and pvp & peg as additives this paper includes five parts as follow : 1
為了改善和優化聚醚碸超濾膜(單浴法)在血液過濾實際應用中的性能,本論文以j . a . van ' thof等提出的雙凝固浴法為基礎,以聚醚碸( pes )為主要成膜材料,以二甲基亞碸為溶劑,並添加一定分子量的致孔劑( pvp ,聚乙烯吡咯烷酮)以及一定分子量的添加劑( peg ,聚乙二醇)按照一定配比在一定溫度下製成透明均一的鑄膜液,靜置脫泡后在一定的工藝條件下製成聚醚碸平板膜和中空纖維膜,然後通過測試膜的結構和性能來評估其用於血液過濾中的前景。The pamps gel layer swells - shrinks reversibly as the solution environments ( ph and i ) change. the water flux increases with decreasing ph and decreases with 7
在凝膠復合膜過濾bsa溶液的實驗中,離子強度減小,截留率升高;離子強度增大,截留率下降。Suitable for the domestic water, food processing water, cool the circulating water, the boiler supplies water, exceed the filtration in advance of the pure water, steam condensation water, build well liquid and water flooding in the oil field, chemical liquid medicine, electroplate the filtration that the liquid, much kinds of acid or alkaline solution, emulsifier wash helping, cleaning solution, medical products, ink and water treatment of the semiconductor, electron trade
水過濾器適用於生活用水食品加工用水冷卻循環水鍋爐供水超純水的預過濾蒸汽冷凝水油田修井液及注水化學藥液電鍍液多種酸性或堿性溶液乳化劑洗滌濟洗滌液醫藥製品墨水的過濾及半導體電子行業的水處理。Hangzhou tonglu misplaced plant filter solution is the first professional production plants, with over 30 years of production history
杭州桐廬過濾機廠是我國最早生產溶液過濾機的專業廠,已有30多年的生產歷史。After the acet is vaporized, the active substance in water is gotten. and which is vaporized at low temperature. then the crude active substance is purified by column chromatography on sephadex g - 75. after a series of purifications again, we could get some white powder at last. though the active substance is diluted to50 g / ml, the activity is still checkeded - up through phyto phtnora casicileon. the purified active substance is insensitive to heat, resistant to chloroform 、 ethanol and the orhers. in addition, the active substance is sensitive to high ph ( 10 ~ 14 ), but it is not sensitive to low ph ( 1 ~ 5 ). furthermre, when the ph is made to low again, the activity of it ' s comes back
用蒸餾水對菌體稀釋;加入適量吸附樹脂在150rpm 、 28下振蕩吸附4h , 80 %的丙酮解吸,過濾解吸液得到活性物質的澄清溶液,旋轉蒸發儀旋轉蒸發去處丙酮,經sephadexg - 75分子篩層析得單一活性峰,收集峰值部分樣品液經冷凍乾燥得到淡褐色粉末,該活性物質用丙酮充分洗滌、甲醇-乙醚重結晶獲得略帶微黃的白色粉末,該活性物質50 g / ml仍可對蘇雲金芽孢桿菌hd - 1產生明顯的抑制作用。分享友人