|
|
Determination of Trace Sodium Iodide in Food Color Additive Erythrosine Using High Performance Liquid Chromatography with Inductively Coupled Plasma-mass Spectrometer |
MA Kang1,SONG Zeng-Liang2,CHAO Jing-bo1,WEI Chao1,ZHANG Jin-na3 |
1. National Institute of Metrology, Beijing 100013, China
2. Hebei Measurement Supervision and Testing Institute, Shijiazhuang, Hebei 050051, China
3. Beijing University of Science and Technology, Beijing 100083, China |
|
|
Abstract High performance liquid chromatography with inductively coupled plasma mass spectrometer method is developed for quantitative determination of trace sodium iodide in food color additive erythrosine.The mobile phase containe methanol and ammonium acetate buffer solution at pH 6.4 and an ODS-C18 column is used to separate sodium iodide with erythrosine.The method quantitative detection limit and detecting limit are respectively 10.0ng/g and 3.0ng/g,linearity range is 10~1 000ng/g ,the precision are in range of 0.37%~0.43% and the recovery is range from 97.5%~99.7%. This method is successfully applicable for use in the determination of trace sodium iodide in real sample,and uncertainty of measured result is evaluated and the uncertainty is 3.9% (k=2).
|
|
|
|
|
|
[1]Downham A, Collins P. Colouring our foods in the last and
the next millennium [J]. Int J Food Sci Technol,2000,35(1):5-22.
[2]Mazzola E P, Calvery R J, Brumley W C, et al. Structural determination of a FD&C Red No.3 contaminant[J].Dyes
and Pigments,1992,18(2):81-89.
[3]Weisz A, Andrzejewski D, Highet R J. Preparative separation of components of the colour additive FD&C Red No.3 (erythrosine) by pH-zone-refining countercurrent chromatography[J].J Chromatogr A,1994,658(2):505-510.
[4]GB 17512.1,食品添加剂-赤藓红[S].
[5]GB2760,食品添加剂使用卫生标准 [S].
[6]Hao T M,DARLENE L B,MARTIN B M, et al. Determination of 2,4,6-triiodoresorcinol and other side reaction products and intermediates in the colour additive FD&C Red No.3(erythrosine) using high-performance liquid chromatography[J]. Food Additive and Contaminants A,2006,23(6):547-551.
[7]Lawrence E. Separation and quantitation of components in FD&C Red No.3 using capillary electrophoresis[J]. Journal of Chromatography A, 2003,991(2):275-280.
[8]韩静,梁丽娜,牟世芬,等.离子色谱法测定饱和卤水中痕量碘离子[J].分析化学,2008,36(2) :187-191.
[9]GB/T 5009.35—2003,食品中人工合成色素的测定[S].
[10]Minioti K S, Sakellariou F, Thomaidis N S. Determination of 13 synthetic food colorants in water-soluble foods by reversed-phase high-performance liquid chromatography coupled with diode-array detector[J]. Anal Chim Acta, 2007, 583(1):103-110.
[11]Gonzalez M, Gallego M, Valcarcel M. Determination of natural and synthetic colourants in pre-screened dairy samples using liquid chromatography-diode array detection[J].Anal Chem,2003,75(3):685-693.
[12]Fuh M R,Chia,K J.Determination of sulphonated azo dyes in foodstuff by ion-pair array and electrospray mass spectrometry detection[J].Talanta,2002,56(4):663-671.
[13]刘崴,杨红霞,李冰,等.高效液相色谱-电感耦合等离子体质谱测定地下水中碘形态稳定性[J].分析化学,2007,35(4) :571-574. |
|
|
|