[Determination of dissociate formaldehyde in cosmetics by derivative gas chromatography analysis].

A method for determination of dissociate formaldehyde in cosmetics by derivative gas chromatography analysis was presented in the paper. The lowest detection limit of analysis was 5.75 pg; the linear calibration curve for formaldehyde were measured within the range of 8.3-166 micrograms/L, and the correlative coefficient was 0.9996. It was showed that this method was simple and easy to handle, and interferential factors were less, and accuracy was high.