FTIR 指代傅里叶变换红外,是红外光谱法的首选方法。红外辐射通过样品时,部分辐射会被样品吸收,部分通过样品(透射)。检测器中生成的信号以光谱形式呈现,代表样品的分子“指纹”。由于不同化学结构(分子)产生不同的光谱指纹,因而体...
A part of this is spectral range as shown in this chart, where certain combinations of components provide high performance in specific ranges. There are often trade-offs, such as between high sensitivity using an MCT-A...
Identification of mixtures/multiple sample components may require additional laboratory preparations and analyses. Lastly, FTIR cannot analyze metals that reflect light FTIR is part of the SMART chart series and is shown above with Raman, which is a complementary technique ...
I have also the DSC chartfor the 1st https://ibb.co/btoRAqfor the second https://ibb.co/c2QpVqThank you so much!« Last Edit: October 27, 2018, 05:31:09 PM by zgryzik » Logged mjc123 Chemist Sr. Member Posts: 2076 Mole Snacks: +302/-12 Re: FTIR charts, what`s the...
The FTIR spectrum is displayed as a chart. The vertical axis shows how much infrared light the substance absorbs. The horizontal axis represents the frequency, or wavelength, of the light. Unknown materials are identified by searching the IR spectrum against a database that has a wide range of...
Infrared spectrum chart peak positions were basically the same, and the chemical composition were roughly the same. They were composed of carbohydrate, protein, lipid and other biological molecular vibration spectrum band. From 1 800 to 1 000 cm-1 for second derivative conduction, the difference ...
Note from our chart that a molecule behaves differently when exposed to these different energy levels. For example when exposed to x-ray energy a molecule will undergo nuclear transitions (i.e.. lose a neutron) or when exposed to ultraviolet energy it may undergo an electronic transition (i....
Since every functional group is composed of different atoms and bond strengths, vibrations are unique to functional groups, and classes of functional groups (e.g. O-H and C-H stretches appear around 3200 cm-1and 2900 cm-1, respectively). A correlation chart with various functional group vibr...
independentpeakandoverlappeak.Thewavenumberaccuracycanimprove5to10timeswhentheoverlapofwavenumberiSserious,whilethewavenumberaccuracycanimprove1000timeswhentheoverlapofwavenumberisfine.3.Asthediscretespectrumchartatlaslinesarelimited,thespectruminformationbetweenspectrumlinescannotbegotdirectly.Inanalysisofspectrumchart,the...
尼科莱特 I S10 FTIR 光谱仪 用户手册说明书 Complete infrared spectroscopy system for routine analytical needs Thermo Scientific Nicolet iS10 FTIR Spectrometer