N-Methylpyrrolidone (NMP) Testing for Purity Assay by GC-FID

The analysis of N-Methylpyrrolidone (NMP) for purity assay by GC-FID is used to determine NMP purity to the nearest 0.01%. The sample is injected on a gas chromatograph equipped with a flame ionization detector capable of detecting and quantifying contaminants in NMP.

Sample results are reported as Total NMP, which includes the identification and quantification of three compounds: NMP, 1,3-Dimythylpyrrolidone (1,3-DMP), and 1,4-Dimethylpyrrolidone (1,4-DMP).

1,3-DMP and 1,4-DMP are isomers of NMP and are commonly considered part of the pure NMP material.

Utilzing this assay, Paragon is capable of identifying the following contaminants in NMP:

CAS Number 872-50-4
Molecular Formula C5H9NO
Molar Mass 99.13 g mol-1
Density 1.028 g/cm3
Melting Point -24 °C
Boiling Point 202-204 °C

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