GB 1886.192-2016National Food Safety Standard -- Food Additives -- Phenethyl Alcohol (English PDF)

2.1 Chemical name

Phenylethyl alcohol

2.2 Molecular formula

C8H10O

2.3 Structural formula

2.4 Relative molecular mass

122.17 (according to 2007 international relative atomic mass)

3.1 Sensory requirements

Sensory requirements shall comply with the requirements of Table 1.

Table 1 sensory requirements

The project requires a test method Color and colorless State liquid the sample was placed in a colorimetric tube and visually observed Aroma warm and warm, rose, honey - like aroma GB/T 14454.2

3.2 Physical and chemical indicators

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

Table 2 Physical and chemical indicators

Item Index Test Method Solubility (25 ° C) 1 mL of the sample was dissolved in 2 mL of 50% by volume ethanol. GB/T 14455.3 Phenylethanol content, w /% >= 98.0 Appendix A Refractive index (20 ° C) 1.529 ~ 1.535 GB/T 14454.4 Relative density (25 °C/25 °C) 1.017 ~ 1.020 GB/T 11540 Appendix A Determination of phenylethanol 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 provisions, should meet the requirements.

Food additives Phenylethanol gas chromatograms and operating conditions are described in Appendix B.

Appendix B

Food additive Phenylethanol gas chromatogram and operating conditions (Area normalization method) B.1 Food additive Phenylethanol gas chromatogram the food additive Phenylethanol gas chromatogram is shown in Figure B.1.

Figure B.1 Food additive Phenylethanol gas chromatogram

B.2 Operating conditions B.2.1 Column. capillary column, length 50m, inner diameter 0.25mm.

B.2.2 Stationary phase. 100% dimethylpolysiloxane.

B.2.3 Film thickness. 0.25 µm.

B.2.4 Chromatographic furnace temperature. 130 °C constant temperature 3min, and then linear program temperature from 130 °C to 190 °C, the rate of 10 °C/min, and finally 190 °C constant temperature 10min.

B.2.5 Inlet temperature. 250 ° C.

B.2.6 Detector temperature. 250 ° C.

B.2.7 Detector. Hydrogen flame ionization detector.

B.2.8 Carrier gas. nitrogen.

B.2.9 Pre-column pressure. 80kPa.

B.2.10 Injection volume. 0.2 µL.

B.2.11 Split ratio. 100. 1.