淡溶液 的英文怎麼說
中文拼音 [dànróngyè]
淡溶液
英文
dilute solution-
Colorless or light pale yellow liquid with the odor of leaves of ilex, soluble in alcohol, ether, slightly soluble in water, easy to change color in the air
本品為無色或淡黃色的油狀液體，有冬綠樹葉的香味，能溶於乙醇乙醚，微溶於水，置空氣中易變色。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。Physical and chemical characteristic : colorless transparent liquid, especial smell. easy dissolve in alcohol, ether, acetone, etc. not dissolve in water
本品為無色至淡黃色油狀透明液體，具有特殊的氣味。不溶於水，易溶於醇、醚、丙酮等有機溶劑。The ? antifoaming ? agent ? is ? the ? compound ? of ? esters ? and ? potentiating ? agent. ? it ? is ? poisonless, ? ordrrless ? and ? liable ? to ? biodegradation. ? it ? is ? a ? solidified ? item ? soluble ? in ? water. ? its ? water ? solution ? is ? in ? pale ? yellow
該消泡劑為脂肪酸酯類物質和增效劑的復合物，無毒無臭，易於生物降解，是一種溶於水的凝固狀產品，其水溶液為淡乳黃色。Sometimes the doctor may apply a weak vinegar - like solution to the affected genital area
有時候，醫生會在你的患處塗上一些淡醋似的溶液。Ethyl 3 - benzoylacrylate ( e3ba ) is pale yellow liquid, it can ' t melt in water. it is one of the important intermediate for synthesizing technical products
苯甲酰基丙烯酸乙酯為淡黃色透明液體，不溶於水，能溶於大多數有機溶劑，是原藥合成中重要中間原料之一。分享友人