水晶單色儀 的英文怎麼說

中文拼音 [shuǐjīngdānshǎi]
水晶單色儀 英文
quartz monochromator
  • : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
  • : Ⅰ形容詞(光亮) brilliant; glittering Ⅱ名詞1. (水晶) quartz; (rock) crystal 2. (晶體) any crystalline substance
  • : 色名詞[口語] (顏色) colour
  • : 名詞1 (人的外表) appearance; bearing 2 (禮節; 儀式) ceremony; rite 3 (禮物)present; gift 4 ...
  • 水晶 : [礦物學] berg crystal; crystal; mountain crystal; pebble; quartz crystal; rock crystal
  1. 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,旋轉蒸發旋轉蒸發去處丙酮,經sephadexg - 75分子篩層析得一活性峰,收集峰值部分樣品液經冷凍乾燥得到淡褐粉末,該活性物質用丙酮充分洗滌、甲醇-乙醚重結獲得略帶微黃的白粉末,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。
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