论文部分内容阅读
在大城市中,钢瓶装乙炔用于原子吸收分析中已很普遍,而在中小城市及边远山区,大多数试验室仍采用乙炔发生器。发生器中产生的乙炔通过浮筒稳压后进入原子吸收分光光度计。电石罐中水的加入,靠Y型三通或h型玻璃管控制,一般要待稳压管气体压力降到一定位置才能加水,因此乙炔气的压力不大稳定,另外稳压罐升到最高位置后,乙炔气还会进入罐中,以致乙炔气通过水封逸出罐外,造成乙炔浪费。由于乙炔气压力不够稳定,往往不能满足测定的要求。
In large cities, cylinders of acetylene for atomic absorption analysis has been very common, and in small cities and remote mountainous areas, most laboratories still use acetylene generator. Acetylene generated in the generator through the buoy into the atomic absorption spectrophotometer. The addition of calcium carbide tank water, by Y-tee or h-type glass tube control, the general pressure to be required to stabilize the gas pressure down to a certain location to add water, so the pressure of acetylene gas is not stable, while the surge tank rose to the highest After the location, acetylene gas will also enter the tank, resulting in acetylene gas through the water seal escape from the tank, resulting in acetylene waste. As acetylene gas pressure is not stable enough, often can not meet the determination requirements.