SN/T 3184-2012 in English
VALIDFood contact materials-Polymers-Determination of bis (hydroxyphenyl) methane bis (2,3-epoxypropyl) ethers in food simulants-Gas chromatography-mass spectrometry
- Issued on:2012-05-07
- Implemented on:2012-11-16
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
Introduction
Interpretation of the core content of the standard
This standard specifies the detection method for BFDGE in water-based (3% acetic acid, 10% ethanol) and fat-based (isooctane) food simulants, using gas chromatography-mass spectrometry as the main analytical equipment, and the method detection limit is 0.05 mg/L.
Comparison of key technologies
| Detection elements | Water-based simulants | Lipid-based simulants |
|---|---|---|
| Pretreatment method | HLB solid phase extraction purification | Direct nitrogen concentration |
| Recovery solvent | Tetrahydrofuran | Tetrahydrofuran |
| Key parameters | Column flow rate ≤1 mL/min | 50℃ water bath nitrogen blowing |
Detailed explanation of instrument parameters
The standard recommended DB-5MS chromatographic column (30m×0.25mm×0.25μm) must meet the following conditions:
- Program temperature: 150℃(2min)→270℃(30℃/min)→hold for 7min
- Selected ion monitoring (SIM): m/z 181 (quantitative ion), 197/312 (qualitative ion)
- Carrier gas flow rate: 1.0 mL/min (high-purity nitrogen)
Key points for standard implementation
- Preparation of standard: The stock solution (5mg/mL) must be stored at 4℃ away from light, with a validity period of 3 months
- Quality control: standard curve correlation coefficient ≥ 0.996, parallel sample relative deviation ≤ 10%
- Interference elimination: blank simulant must be processed simultaneously for background subtraction
Technology evolution analysis
When this standard was issued in 2012, it first established a dedicated detection method for BFDGE. Compared with EU Directive 2002/72/EC, it adds:
- Applicability of isooctane simulant
- Solid phase extraction cleanup steps
- Defined mass spectrometry qualitative and quantitative ion pairs

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