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编辑同志: 在原子吸收报导中表达狭缝宽度的方式,有用机械宽度的,也有用光谱通带宽度的,还有用某一型号的仪器调节狭缝机构的第几档的(例如P-E403的“狭缝4”)等等。对光谱通带宽度的名称也是多样的,如“通带”、“光谱带宽”、“光谱狭缝宽度”等等。然而在原子吸收法中,我们关心的是分光装置能分离出多大的波长范围,即光谱通带宽,因为它与背景或非吸收线的干扰及信/噪比等直接联系着。例如要把吸收线Ni2320埃和非吸收线Ni2316埃分开,光谱通带宽就要不大于2埃。因此我们建议在介绍狭缝宽度时,最好
Editor’s Comrade: The way in which the slit width is expressed in atomic absorption reports, the useful mechanical widths, and also the spectral pass-band widths, and how many times the slit mechanism is adjusted with a certain type of instrument (eg, P-E403 “Slit 4”) and so on. The names of the spectral passband widths are also varied, such as “passband”, “spectral bandwidth”, “spectral slit width” and so on. However, in the AAS method, we are concerned with how much the wavelength range can be separated by the spectrometer, that is, the passband of the spectrum, because it is directly related to the interference of the background or non-absorption line and the signal / noise ratio. For example, to separate the absorption line Ni2320A from the non-absorption line Ni2316A, the spectral passband should be no larger than 2A. Therefore, we suggest that it is best to introduce the slit width