SN/T 5073-2018 出口食品添加劑中甲苯、甲醇等溶劑殘留量的測定 頂空氣相色譜法

　　本標準規定了出口食品添加劑中甲苯、甲醇、正己烷、乙酸乙酯、吡啶、丙酮、二氯甲烷、三氯甲烷、四氫呋喃、乙醇、正丁醇、三氯乙烯、環己烷、乙腈、異辛烷等15種有機溶劑殘留的頂空氣相色譜法。

　　本標準適用于谷氨酸鈉、乙基香蘭素、糖精鈉、黃原膠、瓜爾膠、聚氧乙烯山梨糖醇酐單油酸酯(吐溫80)、白油、乳酸、聚二甲基硅氧烷、苯甲酸鈉等食品添加劑中甲苯、甲醇、正己烷、乙酸乙酯、吡啶、丙酮、二氯甲烷、三氯甲烷、四氫呋喃、乙醇、正丁醇、三氯乙烯、環己烷、乙腈、異辛烷殘留量的測定。

　　浩瀚色譜（山東）應用技術開發有限公司建立了頂空氣相色譜法同時測定食品添加劑中甲苯,甲醇,正己烷等15種有機溶劑殘留量的分析方法.選擇N,N-二甲基甲酰胺對不同食品添加劑中的有機溶劑進行提取,將樣液轉移至頂空瓶中密封,頂空進樣測定.對提取溶劑,提取方式,平衡時間和平衡溫度等進行了優化.結果表明,15種有機溶劑分離良好,各殘留溶劑在相應濃度范圍內呈良好的線性關系,相關系數不小于0.999 8,定量下限為10.0 mg/kg(三氯甲烷和吡啶為20.0 mg/kg),回收率為90.6%~109.1%,相對標準偏差為0.1%~7.2%.該方法靈敏度高,重現性好,適用于食品添加劑中甲苯,甲醇,正己烷等15種殘留溶劑的檢測分析.

　　名稱:毛細管柱

　　規格:30m*0.53mm*1um

　　型號:HH-WAX

　　應用:SN/T 5073-2018 出口食品添加劑中甲苯、甲醇等溶劑殘留量的測定 頂空氣相色譜法

　　SN/T 5073-2018 Determination of residual solvents such as toluene and methanol in food additives for export - Headspace gas chromatography method

　　This standard specifies the headspace air chromatography method for the residue of 15 organic solvents, including toluene, methanol, n-hexane, ethyl acetate, pyridine, acetone, dichloromethane, trichloromethane, tetrahydrofuran, ethanol, n-butanol, trichloroethylene, cyclohexane, acetonitrile, and isooctane, in exported food additives.

　　This standard is applicable to the determination of residual amounts of toluene, methanol, n-hexane, ethyl acetate, pyridine, acetone, dichloromethane, trichloromethane, tetrahydrofuran, ethanol, n-butanol, trichloroethylene, cyclohexane, acetonitrile, isooctane in food additives such as sodium glutamate, ethyl vanillin, saccharin sodium, xanthan gum, guar gum, polyoxyethylene sorbitol anhydride monooleate (Tween 80), white oil, lactic acid, polydimethylsiloxane, sodium benzoate, etc.

　　Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has established a headspace gas chromatography method for the simultaneous determination of 15 organic solvent residues in food additives, including toluene, methanol, and n-hexane. N, N-dimethylformamide was selected to extract organic solvents from different food additives, and the sample was transferred to a headspace bottle for sealing and headspace injection measurement. The extraction solvent, extraction method, equilibrium time, and equilibrium temperature were optimized. The results showed that the 15 organic solvents were well separated, and each residual solvent showed a good linear relationship within the corresponding concentration range, with a correlation coefficient of not less than 0.999 8. The lower limit of quantification was 10.0 mg/kg (20.0 mg/kg for trichloromethane and pyridine). The recovery rate is 90.6%~109.1%, and the relative standard deviation is 0.1%~7.2%. This method has high sensitivity and good reproducibility, and is suitable for the detection and analysis of 15 residual solvents such as toluene, methanol, and n-hexane in food additives