建立了测定面粉中过氧化苯甲酰含量的一种新方法.面粉用甲醇超声萃取,过滤,直接进样分析.在电泳缓冲液为0.02 mol/L硼砂-硼酸缓冲液(含0.04 mol/L十二烷基硫酸钠)(pH 9.0)、紫外检测波长为214 nm、分离电压为10 kV的条件下,富集倍数可达150倍以上,过氧化苯甲酰的质量浓度和其色谱峰高呈良好的线性关系,过氧化苯甲酰的线性范围为0.002～0.012 g/L(r=0.999 8),最低检测限为2 mg/L.将该法用于面粉中过氧化苯甲酰的分析,样品无需繁琐的预处理过程便可直接定量,缩短了分析周期,简单方便,重现性好.
参考文献
| [1] | Smith C J,Grainger J,Patterson D G.J Chromatogr A,1998,803:241 |
| [2] | Kaneta T,Komatsubara T,Shiba H,Imasaka T.Anal Sci,1998,14(5):1017 |
| [3] | Djordjevic N M,Widder M,Kuhn R.J High Resol Chromatogr,1997,20:189 |
| [4] | Penalvo G C,Kelly M,Maillols H,Fabre H.Anal Chem,1997,69(7):1 364 |
| [5] | Quirino J P,Terabe S.Science,1998,282(5388):465 |
| [6] | Kim J B,Quirino J P,Otsuka K,Terabe S.J Chromatogr A,2001,916:123 |
| [7] | Quirino J P,Terabe S.Anal Chem,1999,71(8):1 638 |
| [8] | Taylor R B,Reid R G,Low A S.J Chromatogr A,2001,916:201 |
| [9] | Zheng Z S,Yang G L,Liu S B,Yan H Y,Chen Y.Flavour Fragrance Cosmetics(郑振山,杨更亮,刘树彬,阎宏远,陈义.香料香精化妆品),2005(2):11 |
| [10] | Lu Q L Chinese Journal of Chromatography(鲁奇林.色谱),2002,20(5):464 |
| [11] | GB 2760-1996 |
| [12] | GB/T 18415-2001 |
| [13] | HG2684-95 |
| [14] | Li F,Xie H B.Chinese Journal of Public Health(李芳,谢宏斌.中国公共卫生),2005,21(1):95 |
| [15] | Fu W C.Chemical Analysis and Meterage(傅伟川.化学分析计量),2005,14(1):35 |
| [16] | Ren H L,Hu Z P.Chinese Journal of Public Health(任海林,胡忠平.中国公共卫生),2003,19(2):212 |
| [17] | Huang Y,Lu G,Lu Z K,Chang H H.Chinese Journal of Public Health Engineering(黄越,卢钢,卢忠魁,常海华.中国卫生工程学),2005,4(4):232 |
| [18] | Song L J,Li Q,Zhang P A,Gao X Y.Machinery for Cereals Oil and Food Processing(宋莲军,李强,张平安,高向阳.粮油加工与食品机械),2005(4):67 |
| [19] | Zhang P,Zheng W D,Ma J Y,Sun C J.Modern Preventive Medicine(张鹏,郑卫东,马骏勇,孙成均.现代预防医学),2005,32(8):975 |
| [20] | Liu W,Zhang Z J,Yang L.Food Chemistry,2006,95 (4):693 |
| [21] | Wu T,Wang C,Li N.Chinese Journal of Chromatography(武婷,王超,李楠.色谱),2006,24(6):589 |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%