The invention relates to an electrothermal quartz tube atomizer, which consists of an atomic absorption spectrophotometer and a hydride generator for the hydride generation-atomic absorption spectrometric analysis and determination system, and is used for the detection of Hydride-generating elements in laboratory samples. Its characteristics are as follows: the main body of the seat is made of ceramics, the middle vertical section is H-shaped rectangular groove structure, the upper groove is equipped with electrothermal quartz tube, the two ends of the groove have holes on the extension line of the quartz tube mouth, the aperture is about 10 mm; the front and back of the groove have four air holes, and the connection of the electrothermal quartz tube wire is separately introduced from the holes near the front. Two lower reeds are arranged in the lower groove to make it close to the flame atomizer; a ceramic cover plate with four air holes is arranged on the upper cover of the seat body, and the cover plate is fastened on the seat body with two upper reeds; an electric heating wire connection is connected with a power lead by a wiring post, and a wiring post is fixed on the seat body with a screw. In this way, an electrothermal quartz tube atomizer is formed. The advantages of this device are: the electric heating parts are installed in the ceramic material seats, simple appearance, safe and reliable, easy to assemble and disassemble in the flame atomizer, easy to disassemble and replace the electric heating quartz tube.
【技术实现步骤摘要】
一种电热石英管原子化器
本专利技术涉及一种电热石英管原子化器,属于检测实验室仪器组件。
技术介绍
在分析测试实验室中,试样中痕量的砷、锑、铋、硒、铅、锡、碲等可生成氢化物的元素,可用氢化物发生—原子吸收分光光度法进行分析测定。现在市售的石英管原子化器主要有:①火焰加热石英管原子化器:用火焰直接烧烤石英管,结构简单,无漏电、触电隐患,但温度不易控制,过火则烧坏石英管,欠火则温度过低而未达到原子化要求。②电热石英管原子化器:此类装置的主要优点是温度易于控制;大体可分为两种:一种是电热丝绕于T型石英管,石英管绑于金属片上,中间以云母片相隔,金属片插于火焰原子化器燃烧缝口中,电热丝裸露,给人以易触电的恐怖感,存在安全隐患;另一种是在电热丝外包裹筒型绝缘套,外面用两条Ω型金属片箍紧,此装置与火焰原子化器接合不紧密,操作欠方便,也同样存在安全隐患。
技术实现思路
本专利技术可部分保持和发扬上述优点且可克服上述存在问题,提供一种结构简单、安全、实用的电热石英管原子化器。本专利技术的技术解决方案为:用陶瓷特制的座体主体,其中间垂直剖面为H型长方形槽式结构,上槽盖以陶瓷盖板把电热石英管 ...
【技术保护点】
1.一种电热石英管原子化器,其特征在于,座体主体1用陶土制坯,经烧制而成;下槽20有两道下簧片槽15,其中分别置入一条下簧片14;上槽19的两端有光路孔7,孔径约10mm;两侧各有四个通气孔8;正面正中间有T型石英管竖管安装缺口21;上槽19两端下方有T型石英管支承台16,在T型石英管竖管安装缺口21和T型石英管支承台16与T型石英管2有接触的地方均有沟槽并装有石棉绳压条9;T型石英管支承台16的上方有中簧片槽13,其中分别置入一条中簧片12。
【技术特征摘要】
1.一种电热石英管原子化器,其特征在于,座体主体1用陶土制坯,经烧制而成;下槽20有两道下簧片槽15,其中分别置入一条下簧片14;上槽19的两端有光路孔7,孔径约10mm;两侧各有四个通气孔8;正面正中间有T型石英管竖管安装缺口21;上槽19两端下方有T型石英管支承台16,在T型石英管竖管安装缺口21和T型石英管支承台16与T型石英管2有接触的地方均...
【专利技术属性】
技术研发人员:谭微,吴文启,胡雨欣,李奋,
申请(专利权)人:广西科技大学鹿山学院,
类型:发明
国别省市:广西,45
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