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最近,国外发展了一种电探测火花离子源质谱技术,可不需浓缩试样,准确和迅速地测定钢铁中的微量元素,若加上应用溶液渗入技术,亦可不用标样就能分析钢铁中的杂质和合金元素,其灵敏度可达10~(-4)％,准确度约<10％,精密度约为2—5％。分析对象几乎包括周期表内所有元素,它是测定钢铁中微量(甚至常量)元素的有效方法。为提高电探测火花离子源质谱的准确度和精密度,关键在于采用自动控制火花间隙装置维持在电探测期间有稳定离子流。这类装置已有AEI“自动火花”和Nuclide“AGU”。AEI、MS-7质谱
Recently, a foreign country has developed a spark detection ion source mass spectrometry technology, without the need for concentrated samples, accurate and rapid determination of trace elements in steel, if coupled with solution infiltration technology, nor can the standard analysis of steel can The impurities and alloying elements, the sensitivity of up to 10 ~ (-4)%, accuracy of about <10%, precision of about 2-5%. The analysis includes almost all the elements of the periodic table, which is an effective method for determining trace (or even constant) elements in steel. The key to improving the accuracy and precision of the mass spectrometer for electrical spark detection is to use an automatic spark gap device to maintain a steady stream of ions during electrical detection. Such devices already have AEI “auto spark” and Nuclide “AGU”. AEI, MS-7 mass spectrometry