建立了反相离子对色谱(RP-IPC)与电感耦合等离子体质谱(ICP-MS)联用技术快速分离测定化妆品中Cr(Ⅲ)和Cr(Ⅵ)的方法.样品经乙二胺四乙酸钠盐(EDTA)50℃水浴中提取后,采用XDB-C18色谱柱分离,以5％ (v/v)甲醇-2.0 mmol/L四正丁基铵盐(TBA)水溶液(pH 6.0)作为流动相,流速为1.0 mL/min,进样量为100μL.采用碰撞池技术消除ICP-MS测定时40Ar12C+、35Cl16O1H+对52Cr+的光谱学干扰.Cr(Ⅲ)和Cr(Ⅵ)的分离过程在5 min内完成.样品中加标量为0.01 ～0.50 μg时,其回收率为82.7％ ～ 107.2％,相对标准偏差(RSD)小于5.62％.该方法操作简便、灵敏度高、重现性好,适合于化妆品中Cr(Ⅲ)和Cr(Ⅵ)的同时分析.
参考文献
| [1] | Cornelis R,Caruso J,Crews H,et al.Handbook of Elemental Speciation Ⅱ:Species in the Environment,Food,Medicine and Occupational Health.Chichester:Wiley,2005 |
| [2] | Yaman M.J Anal Chem,2003,58 (5):456 |
| [3] | Motomizu S,Jitmanee K,Oshima M.Anal Chim Acta,2003,499(1/2):149 |
| [4] | Corti H R,Gómez D G,de Blanco E K,et al.J Nucl Mater,1996,229(1/3):132 |
| [5] | Xu W J,Han D,Yuan S Y,et al.Chinese Journal of Chromatography(徐稳杰,韩冬,袁士义,等.色谱),2001,19(4):350 |
| [6] | Yeh C F,Jiang S J.J Chromatogr A,2004,1029(1/2):255 |
| [7] | Chen S T,Yan Y S,Xu W Z,et al.Spectroscopy and Spectral Analysis(陈松涛,闫永胜,徐婉珍,等.光谱学与光谱分析),2007,27(5):1018 |
| [8] | Wang C,Xie W B,Liu J,et al.Chinese Journal of Analytical Chemistry(王畅,谢文兵,刘杰,等.分析化学),2007,35(3):451 |
| [9] | Zhu X S,Jiang Z C,Hu B,et al.Chinese Journal of Analytical Chemistry(朱霞石,江祖成,胡斌,等.分析化学),2003,31(11):1312 |
| [10] | Byrdy F A,Olson L K,Vela N P,et al.J Chromatogr A,1995,712(2):311 |
| [11] | Zhang N,Suleiman J S,He M,et al.Talanta,2008,75 (2):536 |
| [12] | Li B,Yang H X.Principles and Applications of Inductively Coupled Plasma Mass Spectrometry.Beijing:Geological Publishing House(李冰,杨红霞.电感耦合等离子体质谱原理和应用.北京:地质出版社),2005 |
| [13] | Qi J Y,Li X P,Chen Y H,et al.Chinese Journal of Analysis Laboratory(齐剑英,李祥平,陈永亨,等.分析试验室),2008,27(5):30 |
| [14] | Scindia Y M,Pandey A K,Reddy A V R,et al.Anal Chem,2002,74(16):4204 |
| [15] | Cathum S,Brown C E,Wong W.Anal Bioanal Chem,2002,373(1/2):103 |
| [16] | Sahayam A C.Anal Bioanal Chem,2002,372(7/8):840 |
| [17] | SN/T 2288-2009 |
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%