GB 1886.135-2015National Food Safety Standard -- Food Additives -- Benzyl alcohol (English PDF)

2.1 Chemical Name

Benzyl alcohol

Formula 2.2

C7H8O

2.3 Formula

2.4 Relative molecular mass

108.14 (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

Project requires test methods Color colorless Liquid state the sample was placed in a cuvette, were visually observed Faint aroma of fragrant, fruity 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) 1mL whole sample was dissolved in 30mL distilled water GB/T 14455.3 Methanol content of benzene, w /% >= 98.0 Appendix A Acid value (in dollars KOH)/(mg/g) <= 0.5 GB/T 14455.5 Refractive index (20 °C) 1.5360 ~ 1.5410 GB/T 14454.4 the relative density (25 °C/25 °C) 1.042 ~ 1.047 GB/T 11540 Chlorine-containing compounds by testing GB/T 14454.12 Appendix A Determination of benzyl alcohol content A.1 instruments and equipment A.1.1 chromatograph. According to GB/T 11538-2006 provisions in Chapter 5.

A.1.2 Column. capillary column.

A.1.3 Detector. Hydrogen flame ionization detector.

A.2 Determination

Area normalization method. According to GB/T 11538-2006 10.4 Determination.

A.3 repeatability and results are shown Performed according to GB/T 11538-2006 11.4 provisions.

Food Additives Benzyl alcohol gas chromatograph (area normalization method) See Appendix B.

Appendix B

Food Additives Benzyl alcohol gas chromatogram (Area normalization method) B.1 food additives benzyl alcohol gas chromatogram Food Additives benzyl alcohol by gas chromatography is shown in Figure B.1.

Figure B.1 food additives benzyl alcohol gas chromatogram

B.2 operating conditions B.2.1 Column. capillary column length 30m, an inner diameter of 0.32mm.

B.2.2 stationary phase. 5% phenyl methyl polysiloxane.

B.2.3 film thickness. 0.25µm.

B.2.4 chromatography oven temperature. linear temperature programmed from 60 °C ~ 120 °C, the rate of 3 °C/min; then linear temperature program from 120 °C ~ 250 °C, Rate of 10 °C/min.

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 carrier gas flow rate. 1mL/min.

B.2.10 Injection volume. about 0.2µL.

B.2.11 Split ratio. 100.1.