Rapid atomic spectrometric determination of sodium, potassium, calcium and magnesium in powdered milk by direct dispersion

Lead and Cadmium Contamination in Dairy Products and Its Repercussion on Total Dietary Intake

“…In recent years there has been growing interest in the direct analysis of suspensions or slurries of solids by atomic absorption spectrometric methods, which have the advantages of speed, ease of analysis, and reduction of blank levels. ETA-AAS has been used successfully to determine different elements in slurried food samples (Littlejohn et al, 1985;De la Guardia et al, 1986;Ebdon and Evans, 1987;Madrid et al, 1990;Haswell and Barclay, 1992). This paper describes a simple and rapid method for lead and cadmium determination in dairy products, which combines a slurry procedure to minimize sample preparation with the sensitivity and selectivity of ETA-AAS.…”

Slurry analysis by multichannel arc/spark emission spectrometry using a monosegmented system: Determination of aluminium in sediments

“…Furthermore, in most instances the analytical calibration curve can be performed by means of aqueous standard solutions [5]. These features are the reason why the slurry technique has been successfully employed for determination of several metals in various kinds of samples [2][3][4][5][6] by different techniques, such as electrothermal atomic absorption spectrometry [3], flame atomic absorption spectrometry [7], flame atomic emission spectrometry [8], electrothermal atomizer-laser excited-atomic fluorescence spectrometry [9], and inductively coupled plasma or direct current plasma [6,[10][11][12][13][14][15].…”

Amostragem de suspensões: Emprego da técnica na análise direta de amostras

“…Dessa forma combinam-se as vantagens das amostragens sólida e líquida visto que apenas uma pesagem é requerida por amostra e, assim, é possível empregar procedimentos convencionais de introdução de amostras (sistemas de fluxo, micropipetas e auto-amostradores), com um mínimo de tratamento 10,52 . Além disso, as suspensões podem ser introduzidas em equipamentos das mais diversas técnicas: ICP-MS (inductively coupled plasma mass spectrometry) 42,55 , ICP-AES (inductively coupled plasma atomic emission spectrometry) 18,43,56,57 , FAES (flame atomic emission spectrometry) 60 , FAAS (flame atomic absorption spectrometry) 13,26,37,41,61 , ETA-LE-AFS (electrothermal atomizer-laser excited-atomic fluorescence spectrometry) 62 , ETV-ICP-AES (electrothermal vaporization inductively coupled plasma atomic emission spectrometry) 58,59,[63][64][65][66][67][68][69][70] ETV-ICP-MS (electrothermal vaporization inductively coupled plasma mass spectrometry) [71][72][73][74] e mais facilmente ainda em ETAAS (electrothermal atomic absorption spectrometry) 11,[15][16][17][19][20][21][22][25][26][27][28][29]…”