a*q
发帖数: 2109 | 1 【 以下文字转载自 Chemistry 讨论区,原文如下 】
发信人: abq (I Love JUNE), 信区: Chemistry
标 题: Spectroscopy Question
发信站: The unknown SPACE (Tue Aug 27 19:20:22 2002) WWW-POST
My FTIR spectrometer has a external sampling compartment.
But when I collect the spectra, they have spikes all over the 4000-400
wevemunber region. Equally spaced by about 200 wavenumbers.
There is nothing but three KBr plates in the beam path.
(These KBr plates are parallel to each other, and they all perpendicurlar to
the IR beam.)
What wou | b**s
发帖数: 589 | 2 In absorbance mode, noise on top of peaks can create full scale spikes.
Check the data in transmittance. View peaks greatly magnified.
【在 a*q 的大作中提到】
: 【 以下文字转载自 Chemistry 讨论区,原文如下 】
: 发信人: abq (I Love JUNE), 信区: Chemistry
: 标 题: Spectroscopy Question
: 发信站: The unknown SPACE (Tue Aug 27 19:20:22 2002) WWW-POST
: My FTIR spectrometer has a external sampling compartment.
: But when I collect the spectra, they have spikes all over the 4000-400
: wevemunber region. Equally spaced by about 200 wavenumbers.
: There is nothing but three KBr plates in the beam path.
: (These KBr plates are parallel to each other, and they all perpendicurlar to
: the IR beam.)
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