KBr pellets are primarily used for the analysis of solid samples in infrared (IR) spectroscopy.
These pellets are prepared by mixing a small amount of the sample with potassium bromide (KBr) and compressing the mixture under high pressure to form a transparent pellet.
This technique is favored because it allows for the adjustment of the pathlength of the compound being analyzed.
This offers a significant advantage over newer methods like attenuated total reflectance (ATR).
The transparency of the KBr pellet allows infrared radiation to pass through, facilitating the accurate detection of the sample's IR spectrum.
This results in sharp peaks, good intensity, and high resolution.
The method is widely used in various fields including pharmaceutical, biological, nutrition, and spectrographic operations.
5 Key Benefits for Infrared Spectroscopy
1. Pathlength Adjustment
KBr pellets allow for the adjustment of the pathlength of the compound being analyzed, offering a significant advantage over newer methods like ATR.
2. Transparency
The transparency of KBr pellets allows infrared radiation to pass through, facilitating accurate detection of the sample's IR spectrum.
3. Sharp Peaks
This method results in sharp peaks, which are crucial for precise analysis.
4. Good Intensity
KBr pellets provide good intensity, ensuring that the data collected is robust and reliable.
5. High Resolution
High resolution is achieved, making it easier to distinguish between different components in the sample.
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