Application Notes: General

Patented UltraWAVE SRC technology goes beyond traditional digestion, offering greater capabilities for the most difficult sample types. High-performance stainless steel construction allows for higher pressures and temperatures, while disposable vessels eliminate the need to assemble, disassemble or clean between processing. Just as important, dissimilar samples can be processed simultaneously, saving time and money.

Spectral Systems has developed its Diamond XP-BBAR™ coating. With our coating the SNR is about 30% better through most of the analysis region of a typical FT-IR instrument.

Closed vessel microwave digestion has proven to be an effective alternative to traditional sample prep techniques with methods of fast, complete digestions, clean environment, and full recovery of volatile compounds.

Modern paints and varnishes are complex mixtures and the optimization of the material properties is an important task. One of the most essential variables is the curing which should in most cases take place in a reasonably short time span that can range from a fraction of a second to many days. It is difficult to evaluate the degree of the curing and its completeness by visual inspection. Therefore, an unbiased and reliable quantitative analysis is needed in quality control but also in R&D to optimize the varnish or the curing method respectively.

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A method for quantifying the percent sulfate associated with sodium lauryl sulfate (also referred to as sodium dodecyl sulfate) and sodium laureth sulfate (also referred to as sodium lauryl ether sulfate) found in commonly used commercial body care products using FT-IR attenuated total reflectance (ATR) spectroscopy is outlined.

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Polymer orientation of a blow-molded plastic was investigated using FTIR-ATR with polarization. By using a variable angle ATR accessory, changes in spectral features were observed at two different probing depths.