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.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| 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 |