Tech Team · Kintek Solution

To perform Fourier Transform Infrared Spectroscopy (FTIR) on solid samples, specific materials and equipment are required to prepare the samples and ensure accurate analysis. The process involves creating a pellet of the solid sample mixed with a transparent material like Potassium Bromide (KBr), which allows infrared light to pass through. Below is a detailed explanation of the materials and equipment needed for FTIR solid sample analysis.

Key Points Explained:

1. Mini Pellet Press:

   • The Mini Pellet Press is essential for compressing the solid sample and KBr mixture into a pellet. This device applies high pressure to create a uniform, transparent disc that can be analyzed using FTIR. The pellet press ensures the sample is dense enough to allow infrared light to pass through without scattering, which is crucial for accurate spectral analysis.

2. 7mm Pellet Die Assembly:

   • The 7mm Pellet Die Assembly is used in conjunction with the Mini Pellet Press. It shapes the sample into a 7mm diameter pellet, which is a standard size for FTIR analysis. The die assembly includes a cylindrical mold and plungers that compress the sample mixture into a disc.

3. 7mm Disc Holder:

   • The 7mm Disc Holder is designed to hold the 7mm pellet securely in place during the FTIR analysis. It is compatible with standard 3” by 2” mounts, ensuring the pellet is properly aligned in the spectrometer. This holder is crucial for maintaining the integrity of the pellet and ensuring consistent results.

4. Pellet Ring Holders:

   • Pellet Ring Holders are used to store or transport the prepared pellets. They prevent the pellets from breaking or getting contaminated before analysis. These holders are particularly useful when multiple samples need to be prepared and analyzed sequentially.

5. Pestle and Mortar:

   • A Pestle and Mortar is used to grind the solid sample into a fine powder and mix it thoroughly with KBr powder. This step is critical for ensuring homogeneity in the pellet, which directly affects the quality of the FTIR spectrum. The finer the powder, the better the infrared light transmission through the pellet.

6. KBr Powder (50g):

   • Potassium Bromide (KBr) is a transparent material that is mixed with the solid sample to create the pellet. KBr is essential because it is transparent to infrared light and does not interfere with the sample’s spectrum. The 50g quantity is sufficient for preparing multiple pellets, ensuring consistency across analyses.

Summary:

For FTIR analysis of solid samples, the necessary materials and equipment include a Mini Pellet Press, 7mm Pellet Die Assembly, 7mm Disc Holder, Pellet Ring Holders, Pestle and Mortar, and KBr Powder. These components work together to prepare a uniform, transparent pellet that allows infrared light to pass through, enabling accurate spectral analysis. Proper preparation and handling of the sample are critical to obtaining reliable FTIR results.

Summary Table:

Equipment/Material	Purpose
Mini Pellet Press	Compresses solid sample and KBr mixture into a uniform, transparent pellet.
7mm Pellet Die Assembly	Shapes the sample into a 7mm diameter pellet for FTIR analysis.
7mm Disc Holder	Holds the pellet securely during FTIR analysis for accurate alignment.
Pellet Ring Holders	Stores and protects prepared pellets from contamination or damage.
Pestle and Mortar	Grinds and mixes the solid sample with KBr powder for homogeneity.
KBr Powder (50g)	Transparent material mixed with the sample for infrared light transmission.

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