RU95102854A - Device for spectral analysis
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Device for spectral analysis
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Publication number
RU95102854A
RU95102854ARU95102854/25ARU95102854ARU95102854ARU 95102854 ARU95102854 ARU 95102854ARU 95102854/25 ARU95102854/25 ARU 95102854/25ARU 95102854 ARU95102854 ARU 95102854ARU 95102854 ARU95102854 ARU 95102854A
Институт химии и химико-металлургических процессов СО РАН
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Priority to RU95102854/25ApriorityCriticalpatent/RU95102854A/en
Publication of RU95102854ApublicationCriticalpatent/RU95102854A/en
Investigating, Analyzing Materials By Fluorescence Or Luminescence
(AREA)
Abstract
FIELD: spectrometry, element analysis of powder materials. SUBSTANCE: device for spectral analysis includes two anodes, common cathode of quartz tube which houses cylinder with through axial hole (capillary) produced by pressing from powder of tested material. Discharge is fed from two independent power supply sources. Discharge in capillary between first anode and common cathode is used to evaporate material of walls of capillary and to atomize substance employed for their formation. Discharge between cathode and second anode is used to excite atoms of tested substance. Plasma from capillary is brought out by flow of gas into region of flow discharge and its radiation from this region is brought into special device. EFFECT: diminished limits of detection of elements during spectral analysis and improved metrological characteristics.
Claims (1)
Изобретение относится к спектральному анализу и может быть использовано при элементном анализе порошковых материалов. Изобретение направлено на снижение пределов обнаружения элементов при спектральном анализе и улучшение метрологических характеристик. Устройство состоит из двух анодов, общего катода кварцевой трубки, в которую вставлен цилиндр со сквозным осевым отверстием (капилляром), полученный из порошка исследуемого материала методом прессования. Питание разряда осуществляется от двух независимых источников напряжения. Разряд в капилляре между первым анодом и общим катодом служит для испарения материала стенок капилляра и атомизации вещества, их образующего. Разряд между катодом и вторым анодом служит для возбуждения атомов исследуемого вещества. Потоком газа плазма из капилляра выносится в область тлеющего разряда, ее излучение из этой области выводится в спектральный прибор.The invention relates to spectral analysis and can be used in elemental analysis of powder materials. The invention is aimed at reducing the limits of detection of elements in spectral analysis and improving metrological characteristics. The device consists of two anodes, a common cathode of a quartz tube, into which a cylinder with a through axial hole (capillary) is obtained, obtained from the powder of the studied material by pressing. The discharge is powered from two independent voltage sources. A discharge in the capillary between the first anode and the common cathode serves to vaporize the material of the capillary walls and atomize the substance that forms them. The discharge between the cathode and the second anode serves to excite the atoms of the analyte. By a gas flow, the plasma from the capillary is carried out into the region of a glow discharge; its radiation from this region is discharged into a spectral device.
RU95102854/25A1995-03-011995-03-01Device for spectral analysis
RU95102854A
(en)
Influence of aerosol desolvation from the ultrasonic nebulizer on the matrix effect in axial view inductively coupled plasma atomic emission spectrometry
The investigation of two sample preparation techniques applied to the determination of rare earths in solutions with the aid of hollow cathode excitation