色層吸附 的英文怎麼說
中文拼音 [shǎicéngxībù]
色層吸附
英文
chromatographic adsorption-
By infrared spectrum study, the limonite ( feooh nh2o ) can be considered the main colorating mineral in the yellow and red jadeite, and the hematite is another colorating mineral in the red jadeite. the difference of color tone is due to the n value in the molecular formula feooh nh2o and the content of crystal water and adsorbent water. the iron ion came from the effloresced and eroded rocks, and formed fe ( oh ) 3 colloid reacted with the surface water
周圍礦床的風化蝕變為表生水提供了鐵質，形成弱酸性的含fe （ oh ） _ 3膠體的水溶液，表生水流經翡翠礦石時， fe （ oh ） _ 3膠體附著在巖石的表面，經過脫水結晶和吸附，形成褐鐵礦膠體，褐鐵礦膠體沿裂隙或鬆散的礦物顆粒進入翡翠巖石中，逐漸累積沉澱，形成次生色層。Wra - fluey ring cleaner, green, the body is of micro - porous type, soft and elastic with special surface structure capable of absorbing flying floss, oil, moisture, and static form rubber roller, ring, dent roller, metal duff, so as to keep up elements clean and dry
清潔輥絨圈，綠色，本體為微孔層、柔軟富有彈性、表面有峰谷，可吸附膠輥、膠圈，鋸齒羅拉，金屬道夫表面的微量飛花、油劑、水分、靜電質等，從而保持元器件的結晶乾燥。The acquired stm images exhibit that tryptophane can form a uniform adsorption layer at room temperature. two kinds of structures were observed : two - dimensional stripe structure and two - dimensional monoclinic lattice
實驗發現，在室溫下色氨酸分子可以在石墨表面形成均勻的吸附層，並形成二維條狀結構和二維單斜晶格兩種有序結構。Because the concentration of zirconium in uranium has large ranges, from 1. 50xlo ' 6 - 3. 8g / gu, not only how to decrease the remainder of uranium to eliminate its determinate effect but also how to acquire higher recovery of zirconium is considered, so the method of silica gel, the method of tbp levextrel resin chromatography, the method of tta chromatography and the method of tta extraction are compared. then tta extraction is chosen to acquire the ideal separation purpose. compared with icp - ms and icp - aes, xrf has characters of high repeatability, stability, low cost, high concentration elements analysis, the ability to determinate solid sample and having comprehensive practicability, but xrf has lower sensitivity, so how to increase the concentration of the sample to acquire better precision is a difficult problem, the optimum of operating condition : the integral time of spectral lines is 60s, the integral time of background lines is 20s, the voltage of xrf is 50kv, the electric current is 50ma
由於鈾中鋯的含量范圍很廣，從1 . 50 10 ~ （ - 6 ） 3 . 8g / gu ，在分離和測量時，既要考慮盡量地減少鈾的殘留量以消除鈾對鋯測量產生的影響，又要獲得鋯的理想的回收率，因此本文在分離方法的選擇上比較了硅膠吸附分離法， cl - tbp萃取色層法， tta萃取色層法和tta萃取分離法的優缺點，認為tta萃取分離法可以達到理想的分離效果。Many kinds of chromatograph including silica gel, d101 resin, sephadex l - 20 gel, rp - 8 and hplc are used in extracting and separating chemical constituents form these plants. certainly, they need to select the best eluate by tlc. some technique including ms ( ei - ms, fab - ms ), id and 2d nmr ( cosy, roesy, hmbc, hmqc ) been used in identifying these chemical structures
通過各種硅膠柱層析，吸附樹脂， sephadex系列凝膠樹脂以及rp - 8類反向柱等層析材料以及高效液相色譜等技術，利用不同的洗脫體系對這兩種植物的化學成分進行分離得到純的單體化合物，然後利用ms （ ei - ms ， fab - ms ） 、一維nmr 、二維nmr （ cosy ， roesy ， hmbc ， hmqc ）等技術對這些化合物進行結構鑒定，利用ir和uv對這些化合物進行了表徵。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。Chromatography a method of analyzing materials involving the separation by selective absorption of the various compounds as identifiable bands
層析，色譜法：通過選擇性的吸附不同的化合物呈現出不同的可辨認的條帶的一種分析物質的方法。分享友人