GB 1886.197-2016Food additive -- Ethyl lactate (English PDF)

2.1 Chemical Name

2-hydroxy ethyl

Formula 2.2

C5H10O3

2.3 Formula

2.4 Relative molecular mass

118.13 (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 Aroma ethereal atmosphere, a touch of butter-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 Ethyl lactate content, w /% >= 97.0 Appendix A Acid value (in dollars KOH)/(mg/g) <= 5.0 GB/T 14455.5 Refractive index (20 °C) 1.408 ~ 1.422 GB/T 14454.4 the relative density (25 °C/25 °C) 1.029 ~ 1.037 GB/T 11540 Appendix A Determination of ethyl lactate 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 According to GB/T 11538-2006 provisions in 11.4, shall comply with the requirements.

Food additive ethyl lactate gas chromatograph and operating conditions, see Appendix B.

Appendix B

Food additives ethyl lactate GC operating conditions and FIG.

(Area normalization method) B.1 food additive gas chromatogram lactate Food additive ethyl lactate GC is shown in Figure B.1.

Figure B.1 food additive ethyl lactate gas chromatogram

B.2 operating conditions B.2.1 Column. capillary column length 30m, an inner diameter of 0.45mm.

B.2.2 stationary phase. 100% dimethyl polysiloxane.

B.2.3 film thickness. 2.55µm.

B.2.4 chromatography oven temperature. 120 °C constant temperature.

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.

Before B.2.9 column pressure. 34kPa.

B.2.10 Injection volume. 0.2µL.

B.2.11 Split ratio. 100.1.