Performing Fourier-transform infrared (FTIR) spectroscopy requires specific materials and equipment for both sample preparation and analysis.
What Materials are Needed for a FTIR? (4 Essential Components)
1. Sample Preparation Equipment
A pellet press die set is necessary to create solid pellets from the sample mixed with potassium bromide (KBr).
Die sets come in various diameters to accommodate different sample sizes.
A pestle and mortar, typically made of agate, are used to grind and mix the sample with KBr powder.
The smooth surfaces of agate pestles and mortars help minimize sample loss and contamination.
Hydraulic presses, also known as Bramah presses, are essential for applying the necessary pressure to form the KBr mixture into a solid pellet.
2. Sample Analysis Accessories
Attenuated Total Reflection (ATR) accessories allow direct measurement of samples, particularly useful for powder samples.
Diffuse Reflection Accessories (DRIFTS) are useful for analyzing samples that reflect light diffusely, commonly used with powder samples.
Specular Reflectance Accessories are used for samples that reflect light specularly, often used in materials science.
3. Consumables
KBr powder is a common matrix material used to mix with the sample to prepare it for pellet formation.
4. Additional Equipment
Although mentioned in the reference, an RTD (Resistance Temperature Detector) is typically not directly related to FTIR spectroscopy but is more relevant to temperature measurement in chemical processes.
Mechanical seals and motor units are also mentioned but are not directly related to FTIR spectroscopy; they are more relevant to maintaining the rotation of a flask in chemical processes.
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