Diphenylbenzidine was synthesized by diphenylamine using glacial acetic acid and water as solvent in acidic condition.
以二苯胺为原料,水和冰醋酸为溶剂,在酸性条件一步合成二苯基联苯二胺,该方法具有操作简单,原料易得等优点。
Diphenylbenzidine was synthesized by diphenylamine using glacial acetic acid and water as solvent in acidic condition.
以二苯胺为原料,水和冰醋酸为溶剂,在酸性条件一步合成二苯基联苯二胺,该方法具有操作简单,原料易得等优点。
Methods The eyeballs of rat were fixed in the improved fixative solution mixed with paraform,glacial acetic acid and acetone.
方法将大鼠眼球投入到由多聚甲醛、冰醋酸和丙酮组成的改良固定液中固定后制成石蜡切片,经HE染色后在显观察。
At its farthest end, three glaciers meet to dump their effluvia into the milky grey glacial water, launching massive igloo icebergs into the lake with thunderous splashes.
在最远的一端,三条冰河汇聚到一处,将硕大的冰块注入奶白色的河流中,冰块互相碰撞,水花四溅,形成令人叹为观止的奇景。
The first of these glacial periods is often called the Huronian glaciation because it is well exposed in rocks just north of Lake Huron in southern Canada.
第一次冰期称为「休伦冰期」,因其遗迹在加拿大南部休伦湖北方的岩石中清晰可见。
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