耶拿的原吸同时测定Fe和Cr

应助工程师

是哪篇文献呀，发上来看看先

我们的是耶拿的，但不是连续光源，帮不上忙了……

请问这款AAS是否双通道的？

应助达人

既然这两个元素的灵敏线和次灵敏线很非常特别接近，那么仪器区分起来不是很困难吗？
如果要发挥连续光源的优势，应该找两个升温程序相近，但灵敏线容易区分开的元素

看过好几篇，都是英文的，看起来有点累啊

The system is equipped with a linear
charge-coupled device (CCD) array detector; 200 pixels of this array
are used analytically, which means that the equipment works with
200 independent detectors that are illuminated and read out
simultaneously. Pixels that are not needed to measure atomic
absorption can be used to correct for any fluctuation of the measured
radiant flux that is continuous over the spectral range covered by the
detector, such as lamp flicker noise or continuous background ab-
sorption. The visibility of the spectral environment approximately ±
0.25 nm at both sides of the analytical line, which is another result of
this feature, greatly facilitatesmethod development and optimization.
It also shows spectral interferences, making it much easier to avoid
this kind of interference, and if it cannot be avoided, HR-CS AAS offers
the possibility to correct for spectral interference using a least-squares
algorithm [19].这是原理介绍，看的不太明白

惭愧，我也没怎么用过。就是连续光源，contrAA700型号，还配了固体自动进样器，一直没派上用场，没有固体标样。。。

还有最小二乘法校正也不懂，有了解老师希望能科普一下，感激不尽

应助达人

石墨炉炉法的连续AA测定方法，确实很有意思，也不多见，但看看就行，实际工作中一般不会使用。