GB 28362-2012Food additive -- Allyl phenoxyacetate (English PDF)

1 Scope

This standard applies to phenoxyacetic acid and allyl alcohol as raw materials prepared by the food additive phenoxyacetate allyl ester.

2 Chemical name, molecular formula, structural formula and relative molecular mass

3 Technical requirements

3.1 sensory requirements. should be consistent with the provisions of Table 1.

Table 1 sensory requirements

The project requires a test method Colorless to yellow State liquid Place the sample in a colorimetric tube with a visual method Observed Aroma honey, pineapple - like aroma GB/T 14454.2

3.2 Physical and chemical indicators. should be consistent with the provisions of Table 2.

Table 2 Physical and chemical indicators

Item Index Test Method Phenoxyacetic acid allyl ester content, w /% >= 97.5 Appendix A Acid value (in KOH)/(mg/g) <= 1.0 GB/T 14455.5 Refractive index (20 ° C) 1.512 ~ 1.519 GB/T 14454.4 Relative density (25 °C/25 °C) 1.100 ~ 1.110 GB/T 11540 Appendix A Determination of allyl phenoxyacetate content A.1 Instruments and equipment A.1.1 chromatograph. according to GB/T 11538-2006 in Chapter 5 of the provisions.

A.1.2 Column. Capillary column.

A.1.3 Detector. Hydrogen flame ionization detector.

A.2 Determination method Area normalization method. according to GB/T 11538-2006 10.4 determination of content.

A.3 repeatability and result representation According to GB/T 11538-2006 11.4 implementation of the provisions.

Food additive Phenoxyacetic acid allyl ester Typical gas chromatogram (area normalization) See Appendix B.

Appendix B

Food additives Phenoxyacetic acid allyl esters Typical gas chromatograms (Area normalization method) B.1 Food additive Phenoxyacetic acid allyl ester Typical gas chromatogram Food additives Phenoxyacetic acid allyl ester Typical gas chromatograms are shown in Figure B.1.

Figure B.1 Food additive Phenoxyacetic acid allyl ester Typical gas chromatogram

B.2 Operating conditions B.2.1 Column. capillary column, length 30m, inner diameter 0.25mm.

B.2.2 Stationary phase. modified polyethylene glycol.

B.2.3 Film thickness. 0.25 µm.

B.2.4 Chromatographic furnace temperature. 150 °C constant temperature 2min, and then linear program temperature from 150 °C ~ 210 °C, the rate of 10 °C/min, and finally 210 °C constant temperature 15min.

B.2.5 Inlet temperature. 280 ° C.

B.2.6 Detector temperature. 280 ° C.

B.2.7 Detector. Hydrogen flame ionization detector.

B.2.8 Carrier gas. nitrogen.

B.2.9 Pre-column pressure. 25 kPa.

B.2.10 Injection volume. about 0.2 µL.

B.2.11 Split ratio. 1/60.