氢化物-原子吸收分光光度法是近年来发展起来的一种新的分析方法。本文提出一个新结构的氢化物系统,包括氢化物发生器和自动加液装置(见图1)。氢化物发生器有一个多支管的磨口连接器。惰性气体、硼氢化钠溶液、去离子水分别由支管进入反应瓶。特点在于硼氢化钠溶液随惰性气体直冲反应瓶。这样既加入迅速,又得到充分搅拌试样溶液,省去了搅拌装置。磨口连接器底端有开细孔夹套,上通去离子水支管。按揿微动开关,即有去离子水冲洗反应瓶。连接器上端装有玻璃浮珠阀门,当反应瓶中压力超过浮珠自身重量时,反应气体便有力地冲入石英管炉。反应瓶底部装有活塞,可以排出废液。自动加液装置的 Hydride - atomic absorption spectrophotometry is a new analytical method developed in recent years. This paper presents a new structure of the hydride system, including the hydride generator and automatic dosing device (see Figure 1). Hydride generators have a multi-legged grind connector. Inert gas, sodium borohydride solution, deionized water from the branch into the reaction flask. Characterized by sodium borohydride solution with inert gas direct reaction bottle. This will not only join the rapid, but also fully stirred sample solution, eliminating the need for mixing device. Grinding the connector at the bottom of a perforated jacket, on the ion water branch. Press 揿 micro switch, that is, deionized water rinse bottle. The upper end of the connector is equipped with glass float valve, when the pressure in the reaction vessel exceeds the weight of the float, the reaction gas will be forced into the quartz tube furnace. The bottom of the reaction flask equipped with a piston, you can discharge waste. Automatic dosing device