This standard specifies a method for the determination of formaldehyde content in vegetables by High performance liquid chroma-tography, HPLC. It is suitable for the quantitative determination of formaldehyde content in vegetable samples, and the quantitative limit of the method is 2.0 mg/kg. This method extracts formaldehyde from the sample by water, reacts with 2,4-dinitrophenylhydrazine under acidic conditions to form a compound, and then extracts and condenses it with dichloromethane, and finally quantifies it by High Performance Liquid Chromatograph.
| Status | Active |
|---|---|
| CCS | (B31) 爪果、蔬菜种植与产品 | ICS | (67.080.20) 蔬菜及其制品 |
| Release Date | 2018-07-27 00:00:00 | Implementation Date | 2018-12-01 00:00:00 |