WET pulse sequence

Figure 1.16 Representation of the WET pulse sequence for multiple solvent suppression...

Figure 10 Wet pulse sequences. Cartoon representations of the (A) basic WET, (B) WET with composite (90 90 90 90 ) read pulse, (C) WET180, (D) WET270, and (E) SWET pulse sequences. See Figure 6 for pulse descriptions and text for details. WET gradients were the same for all sequences and are described in text.

HPLC-NMR is a powerful tool for the analysis of complex polymer systems. Using this coupled technique, an analyst can determine the end-group structure, chain length, as well as the composition and the microstructure of the polymers. It has been shown that on-flow experiments, in particular, can be used for the structural analysis of the polymer systems. The analysis can be done with conventional HPLC-grade solvents. Quantitation of the NMR data has been facilitated through the use of multiple solvent suppression experiments (the WET pulse sequence). 

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