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    HEIZKAMMER, HEIZOFEN, ANALYSEVORRICHTUNG SOWIE VERFAHREN ZUM ANALYSIEREN VON FREMDSTOFFGEHALTEN IN PROBEN
    4.
    发明公开
    HEIZKAMMER, HEIZOFEN, ANALYSEVORRICHTUNG SOWIE VERFAHREN ZUM ANALYSIEREN VON FREMDSTOFFGEHALTEN IN PROBEN 审中-公开

    公开(公告)号：EP3347661A1

    公开(公告)日：2018-07-18

    申请号：EP16766864.9

    申请日：2016-08-31

    申请人： Schunk Kohlenstofftechnik GmbH

    发明人： METZ, Joachim ,  GÄRTNER, Ralf ,  HINTNER, Simon

    IPC分类号： F27B17/02 ,  F27D5/00 ,  F27D11/04 ,  F27D99/00 ,  G01N21/31 ,  G01N21/74 ,  H05B3/06

    摘要： The invention relates to a heating chamber (1) for a heating furnace, by means of which heating furnace an electrothermal vaporization of contaminants from samples can be accomplished such that said contaminants can be spectrometrically analyzed. The heating chamber has a wall (3), a sample-holding region (5), a nozzle region (7) and two electrical connection regions (9, 11). The heating chamber (1) is specially designed in such a way that an electric current flows through the wall (3) in such a way that heating power caused by said electric current is higher in the nozzle region (7) than in the sample-holding region (5). For example, the electrical connection regions (9, 11) can be arranged further from the longitudinal axis (8) in the radial direction than a part of the wall (3) surrounding the nozzle region (7), and, for example by means of a locally narrowed region (13), the heating chamber (1) can be designed in such a way that the current between the two electrical connection regions (9, 11) is conducted predominantly radially inward to the part of the wall (3) surrounding the nozzle region (7). An advantageous heat distribution in the heating chamber (1) that can be thereby achieved can have a positive effect on the analysis of sample contaminants.

    METHOD FOR THE THERMIONIC ATOMISATION OF A SAMPLE AND DEVICE FOR REALISING THE SAME
    6.
    发明公开
    METHOD FOR THE THERMIONIC ATOMISATION OF A SAMPLE AND DEVICE FOR REALISING THE SAME 审中-公开
    方法对样品及其装置的热离子雾化

    公开(公告)号：EP1182447A4

    公开(公告)日：2002-10-16

    申请号：EP98957248

    申请日：1998-09-21

    申请人： GANEEV ALEXANDR AKHATOVICH ,  SHOLUPOV SERGEI EVGENIEVICH

    发明人： GANEEV ALEXANDR AKHATOVICH ,  SHOLUPOV SERGEI EVGENIEVICH

    IPC分类号： G01N21/71 ,  G01N21/67 ,  G01N21/74

    CPC分类号： G01N21/714

    摘要： The present invention pertains to the construction of analytic instruments and can be used for analysing natural and industrial water, biological samples, geological samples and air. The purpose of this invention is to reduce substantially the power used by the atomiser and the analyser, and to increase the number of objects that can be analysed. To this end, the method for the thermionic atomisation of a sample involves carrying out an ionic sputtering of the sample from the cathode in a low-pressure discharge. The cathode is heated by the discharge to a temperature of between 800 and 1400 DEG C, while the ballast gas consists of Kr or Xe under a gas pressure of 10 to 15 torrs. The thermionic atomisation device includes an atomiser arranged in a gas-discharge chamber filled with an inert gas. The atomiser is made in the form of a hollow, cylindrical, metallic and thin-wall cathode. In order to reach this goal, the method involves using a thermionic atomisation device which, in an efficient embodiment, consists of the above-mentioned gas-discharge atomiser, i.e. a hollow, metallic and thin-wall cathode. This mechanism enables the sputtering and atomisation of the sample in a short time (0.2 to 1 sec.), thus lowering the detection limits while eliminating matrix effects.