KBr pellets are widely used in infrared (IR) spectroscopy.
They serve as a carrier for the sample being analyzed.
KBr is transparent to light in the IR range.
This transparency allows for accurate measurement of the sample's absorbance without interference.
The transmittance of KBr in the IR range is 100%.
5 Key Applications Explained
1. Infrared (IR) Spectroscopy
KBr pellets are essential in IR spectroscopy.
They ensure the sample's absorbance is measured accurately.
2. Pharmaceutical and Biological Laboratories
KBr pellets are used in pharmaceutical and biological labs.
They support various analytical operations.
3. Nutrition Research
Nutrition labs also use KBr pellets.
They help in analyzing nutritional components.
4. Spectrographic Operations
Spectrographic labs rely on KBr pellets.
They are crucial for accurate spectral analysis.
5. Fabrication of KBr Pellets
The KBr Pellet Press is used to create these pellets.
It is a compact, hand-operated device.
The press produces uniform, cylindrical pellets with flat ends.
The height of the pellets depends on the material and force applied.
Dies in the press can be easily switched for reloading.
How to Make KBr Pellets
Follow these steps to make KBr pellets:
- Heat the anvils and die set before making the pellet.
- Use dry KBr powder.
- Ensure all components are at the same temperature.
- Blend the sample thoroughly with KBr powder.
- Use high-quality, spectroscopic grade KBr powder.
Common Faults in Pellet Preparation
Avoid these common mistakes:
- Using insufficient KBr or sample quantity.
- Not blending the sample with KBr powder properly.
- Using low-quality KBr powder.
- Not heating the anvils and die set properly.
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