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1966年,张凤飞等提出一种梯形光栏,利用一个已知含量试样,以分部曝光法制作工作曲线,测定过金属或合金样品,1979年我们曾报导过一种类似的两阶时差光栏。最近,张誉忠报导的L型切口光栏亦与上相似。这里拟就三年来的使用情况略作介绍。一般岩矿光谱全分析常采用图一光栏,以分别摄取不同挥发性状的元素光谱。实质上,它系基于下述假设:各元素在电弧过程中的蒸发行为是循序的,互不干扰的(图2)。因此,往往按表1推移光栏截取光谱。
In 1966, Zhang Fengfei and other proposed a trapezoidal light bar, using a known content of the sample to the part exposure method to make the working curve, measured the metal or alloy samples, we have reported in 1979 a similar second-order time difference light column. Recently, Zhang Yuzhong reported that the L-shaped incisors were also similar. Here is intended to introduce the use of three years a little. General analysis of rock and rock spectral analysis often use a light bar to take the elemental spectra of different volatile traits. In essence, it is based on the assumption that the evaporation behavior of the elements during the arc is sequential and noninterfering (Figure 2). Therefore, often according to the table 1 push the light bar to intercept the spectrum.