Agilent Excalibur FT-IR Spectrometer Sealing and Desiccation Application Brief

About this manual

This document is an application brief addressing the importance of sealing and desiccation in FT-IR spectrometers to prevent water vapor interference. It highlights that trace amounts of water vapor can obscure important sample features in infrared spectra.

What's inside

• Introduction
• Important Considerations
• Varian's Advantages
• Easy Access and Effective Sealing
• Varian's Desiccant Cartridge
• Benefits to the User
• Conclusion

Frequently asked questions

How much baseline noise appears near the water absorbance peaks in a good sealed spectrometer?

The noise in the baseline region near 3300 cm-1 and 1660 cm-1 is less than 0.0001 absorbance units.

Why is the desiccant cartridge located closer to the beamsplitter than to the source?

Moisture can damage the beamsplitter and the elevated temperature of the source will reduce the carrying capacity of the desiccant.