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目前,在某些应用领域,蒸发法光谱分析已经发展成为一种相当成熟的技术,克服了一般光谱分析在光源中直接燃烧大量基体时引起的影响,提高了灵敏度,简化了操作,与化学光谱分析比较,不需要昂贵高纯试剂和繁琐费时的操作,不易引起沾污和丢失,而载体分馏光谱分析往往难以达到要求的灵敏度。但是蒸发法光谱分析不是十分理想的方法,蒸发是蒸发法的优点,恰好蒸发又是必须进一步改进的关键。目前工业生产中采用的石墨高频电炉,还是三十年前苏联设计的-3型蒸发仪。这种蒸发仪效率低,只能一次蒸发一个石墨杯,因此,蒸发时间很长。例如在分析工作中,用三标样法,4个标样,3个被测试样,每个样蒸发3次,总共进行21次蒸发。每蒸发一
At present, in some fields of application, evaporative spectroscopy has developed into a rather sophisticated technology that overcomes the effects of general spectroscopic analysis when burning large quantities of substrate directly in a light source, improves sensitivity, simplifies operation, correlates with chemical spectroscopy Analysis and comparison, does not require expensive high-purity reagents and cumbersome and time-consuming operation, not easy to cause contamination and loss, and carrier fractionation spectroscopy often difficult to achieve the required sensitivity. However, evaporative spectrometry is not a very ideal method. Evaporation is the advantage of evaporation. Just the evaporation is the key to be further improved. Currently used in industrial production of graphite high-frequency electric furnace, or the design of the Soviet Union thirty years ago-3 evaporator. This evaporator is inefficient and can evaporate only one graphite cup at a time, so evaporation takes a long time. For example, in the analysis work, with three standard samples, four standard samples, three samples were tested, each sample was evaporated three times for a total of 21 evaporation. Each evaporation one