TEOS (or tetraethyl orthosilicate, Si(OC2H2)4) has many chemical signatures in the mid-infrared spectrum, and the Cary 630 should easily be able to acquire a spectrum of this compound. As TEOS is found in liquid form at room temperature, recommended sampling modules for this compound would be the Dialpath, TumblIR, or if very concentrated, a diamond ATR module.
A recommended traceable standard to use in pharmacopeia for FTIR is NIST SRM 1921b traceable polystyrene film of approximately 35 µm thickness (which is available directly from Agilent under the part number 925-0128).
Thank you for your help! I am indeed looking for a traceable TEOS standard. Merck used to offer one, but they no longer sell it. We also use the NIST standard you mentioned for calibration. Maybe someone can recommend a good TEOS standard. :-)
Thank you for your help! I am indeed looking for a traceable TEOS standard. Merck used to offer one, but they no longer sell it. We also use the NIST standard you mentioned for calibration. Maybe someone can recommend a good TEOS standard. :-)
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