ＮＯ的制备及性质实验山东济宁教育学院宋桂苓〔操作）将３～４ｍ豆１：４的硝酸倒人一支洁净的青霉素小瓶内，盖好塞子，在酒精灯上稍微加热。将约七厘米长的细铜丝弯曲绕成圆形薄片状，拔出针管活塞（ｓｍｌ的）将薄片水平放入针管后再将活塞安好，吸少量蒸馏水排净针管... Preparation and Properties of NO Experiment Song Guixi, Shandong Jining Institute of Education [Operation] Put a 3 to 4 m layer of 1:4 nitric acid into a clean penicillin vial, cover the stopper, and heat it slightly on the alcohol lamp. About seven centimeters long thin copper wire is bent into a round thin sheet, pull out the needle piston (sml) horizontally into the needle tube and then put the piston well, suck a small amount of distilled water to drain the needle tube...