Ultrasound-assisted emulsification of cosmetic samples prior to elemental analysis by different atomic spectrometric techniques

被引:34
作者
Lavilla, I. [1 ]
Cabaleiro, N. [1 ]
Costas, M. [1 ]
de la Calle, I. [1 ]
Bendicho, C. [1 ]
机构
[1] Univ Vigo, Fac Quim, Dept Quim Analit & Alimentaria, Area Quim Analit, Vigo 36310, Spain
关键词
Ultrasound-assisted emulsification; Cosmetics; Trace elements; Atomic spectrometry techniques (plasma; flame; cold vapour); PLASMA-MASS SPECTROMETRY; ABSORPTION-SPECTROMETRY; GRAPHITE-FURNACE; EMISSION-SPECTROMETRY; CHEMICAL MODIFIER; VAPOR GENERATION; OIL; GASOLINE; METALS; NICKEL;
D O I
10.1016/j.talanta.2009.06.036
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
In this work, ultrasound-assisted emulsification with a probe system is proposed as a rapid and simple sample treatment for atomic spectrometric determinations (Electrothermal Atomic Absorption Spectrometry, Inductively Coupled Plasma Optical Emission Spectrometry, Flame Atomic Absorption Spectrometry and Cold Vapour Atomic Absorption Spectrometry) of trace elements (As, Cd, Cr, Cu, Hg, Mg, Mn, Ni, Sr and Zn) in cosmetic samples such as shampoos, gel (hair gel), cremes (body milk, hair conditioner) and oil (body oil). The type of dispersion medium, the sample mass-to-dispersion medium volume ratio, as well as the parameters related to the ultrasound-assisted emulsification (sonication amplitude and treatment time) were exhaustively studied. Only 1 min of ultrasonic shaking and a dispersion medium containing 0.5% (w/v) of SDS + 3% (v/v) of HNO3 or HCl allows obtaining a stable emulsion at least for 3 months. Thermal programs, nebulization of emulsions, speed of pumps and concentration of reagents used in cold vapour generation were optimized. Calibration using aqueous standards was feasible in all cases. Calibration by the standard addition method and recovery studies was also applied for validation. Microwave-assisted digestion and Inductively Coupled Plasma Mass Spectrometry were used for comparison purposes. Relative standard deviations from analysis of five independent emulsions were less than 9% in all cases. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:109 / 116
页数:8
相关论文
共 35 条
[1]   Emulsification by ultrasound:: drop size distribution and stability [J].
Abismaïl, B ;
Canselier, JP ;
Wilhelm, AM ;
Delmas, H ;
Gourdon, C .
ULTRASONICS SONOCHEMISTRY, 1999, 6 (1-2) :75-83
[2]   SONOLYSIS OF AQUEOUS SURFACTANT SOLUTIONS - PROBING THE INTERFACIAL REGION OF CAVITATION BUBBLES BY SPIN TRAPPING [J].
ALEGRIA, AE ;
LION, Y ;
KONDO, T ;
RIESZ, P .
JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (12) :4908-4913
[3]  
Besecker KD, 1998, ATOM SPECTROSC, V19, P48
[4]   Levels of nickel and other potentially allergenic metals in Ni-tested commercial body creams [J].
Bocca, B. ;
Forte, G. ;
Petrucci, F. ;
Cristaudo, A. .
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS, 2007, 44 (05) :1197-1202
[5]   Determination of mercury in gasoline by cold vapor atomic absorption spectrometry with direct reduction in microemulsion media [J].
Brandao, GP ;
de Campos, RC ;
Luna, AS .
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 2005, 60 (05) :625-631
[6]   Determination of aluminum by electrothermal atomic absorption spectroscopy in lubricating oils emulsified in a sequential injection analysis system [J].
Burguera, JL ;
Burguera, M ;
Antón, RE ;
Salager, JL ;
Arandia, MA ;
Rondón, C ;
Carrero, P ;
de Peña, YP ;
Brunetto, R ;
Gallignani, M .
TALANTA, 2005, 68 (02) :179-186
[7]   Semiquantitative simultaneous determination of metals in olive oil using direct emulsion nebulization [J].
Castillo, JR ;
Jiménez, MS ;
Ebdon, L .
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 1999, 14 (09) :1515-1518
[8]   Determination of As, Cd and Hg in emulsified vegetable oil by flow injection chemical vapour generation inductively coupled plasma mass spectrometry [J].
Chang, Yu-Tzu ;
Jiang, Shiuh-Jen .
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 2008, 23 (01) :140-144
[9]   A study on the emulsification of oil by power ultrasound [J].
Cucheval, A. ;
Chow, R. C. Y. .
ULTRASONICS SONOCHEMISTRY, 2008, 15 (05) :916-920
[10]   Palladium as chemical modifier for the stabilization of volatile nickel and vanadium compounds in crude oil using graphite furnace atomic absorption spectrometry [J].
Damin, ICF ;
Vale, MGR ;
Silva, MM ;
Welz, B ;
Lepri, FG ;
dos Santos, WNL ;
Ferreira, SLC .
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 2005, 20 (12) :1332-1336