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31. 发明授权

US4204430A Automatic liquid flow sampling apparatus 失效
标题翻译：自动液体取样装置
公开(公告)号：US4204430A
公开(公告)日：1980-05-27
申请号：US874586
申请日：1978-02-02
申请人： Rolf Tamm , Toma Tomoff , Bernhard Huber
发明人： Rolf Tamm , Toma Tomoff , Bernhard Huber
IPC分类号： G01N1/00 , G01N1/14
CPC分类号： G01N35/1095
摘要： An automatic sampling apparatus for withdrawing samples from a continuously flowing liquid for analysis by a flameless atomic absorption spectrometer includes a sample vessel which, at predetermined times, receives pumped samples of the liquid to be tested, a neutral dilutant liquid, or a calibrated liquid for recalibrating the spectrometer system. A probe having a pipette-like tip is mechanically actuated to dip into the sample vessel and an intake and dispensing pump connected to the probe draws a small sample into the probe tip whereupon the probe mechanism lifts and rotates the probe and inserts the tip into the graphite atomizer tube of the atomic absorption spectrometer. The probe mechanism then returns the probe where it is first flushed with a flushing liquid pumped through the probe and is then returned to the sample vessel to draw the next test sample.
摘要翻译：用于从连续流动的液体中抽取样品以进行无焰原子吸收光谱仪分析的自动采样装置包括：样品容器，其在预定时间接收待测试液体的抽取样品，中性稀释液体或用于重新校准光谱仪系统。具有移液管状尖端的探针被机械地致动以浸入样品容器中，并且连接到探针的进样和分配泵将小样品吸引到探针尖端中，由此探针机构提升并旋转探针并将尖端插入到石墨雾化管原子吸收光谱仪。探针机构然后将探针首先用泵送通过探针的冲洗液冲洗，然后返回到样品容器中以抽出下一个测试样品。

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