食用植物油中4种氯丙醇脂肪酸酯的GC-MS测定方法研究
Determination of four kinds of chloropropanols fatty acid esters in edible vegetable oil by GC-MS
  
DOI:
中文关键词:  食用植物油  3-MCPD酯  2-MCPD酯  1,3-DCP酯  2,3-DCP酯  GC-MS
英文关键词:edible vegetable oil  3-MCPD ester  2-MCPD ester  1,3- DCP ester  2,3-DCP ester  GC-MS
基金项目:
Author NameAffiliation
BAI Wenliang, DU Yegang, CHEN Meng, ZHANG Haoying, LI Bifang  
Hits: 1200
Download times: 0
中文摘要:
      采用气相色谱-质谱(GC-MS)联用技术,建立了同时测定食用植物油中3-氯-1,2-丙二醇脂肪酸酯(3-MCPD酯)、2-氯-1,3-丙二醇脂肪酸酯(2-MCPD酯)、1,3-二氯-2-丙二醇脂肪酸酯(1,3-DCP酯)和2,3-二氯-1-丙二醇脂肪酸酯(2,3-DCP酯)含量的分析方法。该方法在0.005~0.5 mg/L范围内线性关系良好,检出限0.1 mg/kg,定量限0.2 mg/kg,加标回收率在97.2%~106.0%之间,相对标准偏差在3.4%~7.1%之间。该方法操作简便,灵敏度高,重复性好,定性定量准确,对仪器污染小,能满足食用植物油中氯丙醇酯的检测需求。
英文摘要:
      A method for the simultaneous determination of the contents of 3-monochloropropane-1,2-diol (3-MCPD ester), 2-monochloropropane-1,3-diol (2-MCPD ester), 1,3-dichloropropane-2-ol (1, 3- DCP ester) and 2,3-dichloropropane-1-ol(2,3-DCP ester) in edible vegetable oil was established by gas chromatography-mass spectrography (GC-MS). The method showed good linear relationship in the range of 0.005-0.5 mg/L. The detection limit and quantification limit were 0.1 mg/kg and 0.2 mg/kg respectively. The recovery rate was between 97.2%- 106.0%, and the relative standard deviation was between 3.4%- 7.1%. The method was easily operated with good sensitivity, good repeatability, precise quanlification and quantification and little pollution to instrument, and it could meet the determination demand of chloropropanols fatty acid esters in edible vegetable oil.
查看全文   View/Add Comment  Download reader
Close
Magazine Press of CHINA OILS AND FATS
Address:Laodong Road 118 , Lianhu District, Xi 'an City, Shaanxi Province, China Postcode:710082
Phone:008602988617441;008602988621360 ;008602988626849 Fax:008602988625310
You are the number  778293  Visitors  京ICP备09084417号