Chromatography

Gas Chromatography

• Known compounds allow quantification with flame ionization detection.
• Mass spectrometric (MS) detection allows identification and quantification of unknown compounds.
• Electron ionization (EI), positive ion chemical ionization (PICI), and negative ion chemical ionization (NICI) GC/MS analysis of volatile and semi-volatile compounds.
• Quantitation of volatile and semi-volatile compounds.
• Identification and quantitation of contaminants down to parts per billion (ppb) levels in solid, liquid, or gaseous samples.
• Identification and quantitation of polymer additives.
• Residual solvent, residual monomer content determination of polymers.
• Identification and content of brominated flame retardants (European Union RoHS compliance).

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Work We've Done

Identification of a PVC plasticizer

GC/MS was used to identify the type of plasticizer present in a flexible PVC building product. The type of plasticizer used can influence product performance characteristics such as migration resistance and low-temperature flexibility. The plasticizer was determined to be a C7,C9,C11 semi-linear phthalate ester mixture.

Identification and quantification of brominated flame retardants in electronic equipment

Tetrabromobisphenol A and decabromodiphenyl ether are commonly used in electronic equipment. The European Union has banned the use of polybrominated diphenyl ether (PBDE) and polybrominated biphenyl (PBB) flame retardants in electronic equipment as part of the Restriction of Hazardous Substances (RoHS) directive.

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