Development and validation of a gas chromatography method coupled with flame ionization detector for quantitative analysis of fragrance allergens in aromas for e-cigarettes.

Aromas can give smell and/or flavor to a variety of products in the cosmetic and food industry. They are also used as e-cigarette additives. Some of those substances are recognized as fragrance allergens and can cause allergic reactions so there is a need to control their use.

Evaluation of sample injection precision in respect to sensitivity in capillary electrophoresis using various injection modes.

A comparative study was conducted to assess the injection precision in capillary electrophoresis for cationic analytes (arecoline, codeine, papaverine). The precision was measured in respect to methods sensitivity in various injection modes in capillary electrophoresis: standard hydrodynamic injection (3.45 kPa for 6 s), large volume sample stacking (3.