GB 1886.361-2022 Translated English of Chinese Standard (GB1886.361-2022): National food safety standard - Food additive - Sodium copper chlorophyllinhttps://www.chinesestandard.net, 21 ago 2022 - 13 pagine This document is applicable to sodium copper chlorophyllin, a food additive, that chlorophyll is extracted from silkworm sand or grass (such as tall fescue, lucerne, nettle), spirulina and other plants as raw materials, or directly uses chlorophyll as raw material, and then is prepare by copper substitution reaction. |
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1.0mL of internal 5.0mL of water absorbance according to formula acid Add water Analysis steps anhydrous ether Annex appropriate amount arithmetic mean blank solution calculated according calibration factor chlorophyll content Chromatographically Color colorless column component conduct constant temperature water Continue conversion factor Cool Cover Determination dichloromethane digestion tank dilute and set dissolve Erlenmeyer flask filter paper filtrate GB/T headspace vial hydrogen phosphate solution injection bottle Inspection method Instruments and equipment internal standard solution internal standard substance isopropanol Item liquid mass methanol Microwave digestion temperature N-methylpyrrolidone nearest nitric acid peak area phosphate buffer pH phosphate solution 0.15mol/L Pipette Place Preparation pure ratio Reagents and materials Reference separatory funnel set volume solvent residues specified specified in GB Specimen processing specimen solution standard product sulfuric acid Table Take temperature raise program temperature water bath Transfer Violently shake volumetric flask wash washing liquid water to wash Weigh