GB 31604.21-2016 Translated English of Chinese Standard. GB31604.21-2016: National food safety standard - Food contact materials and articles - Determination of migration of terephthalic acid
https://www.chinesestandard.net, 2018 M04 23 - 13 pages
This standard specifies determination method of caprolactam and migration quantity in food contact aterials and products. This standard applies to determination of caprolactam and migration quantity in food contact materials and products.
Expression of analysis results
Annex A Terephthalic acid standard substance chromatogram
Annex B Liquid chromatographytandem mass spectrometry confirmation reference conditions
100 mL volumetric accurate to 0.1 acid in food acid internal standard acid standard intermediate acid standard substance acidic and alcoholic add 20 mL add to scale alcoholic food simulant alcoholic simulants buffer solution chromatographic column chromatography-tandem mass spectrometry Determination of migration filter membrane Food contact materials food simulant test GB/T Glacial acetic acid High performance liquid internal standard intermediate internal standard stock isopropyl alcohol limit for terephthalic liquid chromatography-tandem mass mass spectrometry conditions materials and articles methyl alcohol mg/kg mg/L migration of terephthalic migration test mL of phthalic mL of sodium mL of terephthalic mL volumetric flask mobile phase normal heptane olive oil medium olive oil simulant Phosphoric acid phthalic acid internal quantitation limit Reagents reference conditions sample volume simulant is 1.0 simulant test solution Sodium acetate sodium bicarbonate solution standard intermediate solution standard stock solution standard substance chromatogram standard working solutions Table B.2 terephthalic acid standard ultraviolet detector