Determinação espectrofotométrica do arsênio em cabelo usando o método do dietilditiocarbamato de prata (SDDC) e trietanolamina/CHCl3 como solvente
作者： Simone de Fátima Pinheiro PEREIRA , Sérgio Luis Costa FERREIRA , Antonio Celso Spínola COSTA , Augusto César Fonseca SARAIVA , Antonia Kelen Frota SILVA
DOI: 10.1590/S0100-46702002000100014
关键词:
摘要: Pelo uso de tecnicas mais baratas, como a do SDDC, e possivel determinar niveis tracos arsenio em cabelo; entretanto esta tecnica apresenta alguns inconvenientes baixa estabilidade o odor desagradavel da piridina. A piridina foi substituida por trietanolamina/CHCl3 as caracteristicas analiticas complexo foram estudadas. O estavel 270 minutos, faixa aplicacao lei Beer 0,0 25,0 mg As, repetibilidade 0,028 limite deteccao 18,6 As/L sensibilidade (e)? 1,12 104 L.mol-1.cm-1. metodo aplicado amostras cabelo. lavagem das feita com extran agua desionizada seca estufa (40-60oC). 0,1000 g amostra submetida 11 metodos digestao. melhor que usou uma solucao 1:1 HNO3 H2SO4 concentrados temperatura 100-110oC evaporacao ate fumos SO3. tempo abertura um inconveniente neste tipo
ufpa.br
sci-hub.st 参考文章(22)
Te-Hsien Lin Yeou-Lih Huang Ming-Yu, Arsenic species in drinking water, hair, fingernails, and urine of patients with blackfoot disease. Journal of Toxicology and Environmental Health. ,vol. 53, pp. 85- 93 ,(1998) , 10.1080/009841098159376
Dipankar Das, Amit Chatterjee, Badal K. Mandal, Gautam Samanta, Dipankar Chakraborti, Bhabatosh Chanda, Arsenic in ground water in six districts of West bengal, India: the biggest arsenic calamity in the world. Part 2. Arsenic concentration in drinking water, hair, nails, urine, skin-scale and liver tissue (biopsy) of the affected people. Analyst. ,vol. 120, pp. 917- 924 ,(1995) , 10.1039/AN9952000917
Richard H. Fish, Frederick E. Brinckman, Kenneth L. Jewett, FINGERPRINTING INORGANIC ARSENIC AND ORGANOARSENIC COMPOUNDS IN IN SITU OIL SHALE RETORT AND PROCESS VOTERS USING A LIQUID CHROMATOGRAPH COUPLED WITH AN ATOMIC ABSORPTION SPECTROMETER AS A DETECTOR Environmental Science & Technology. ,vol. 16, pp. 174- 179 ,(1982) , 10.1021/ES00097A010
MaIsabel Basadre-Pampín, A. Alvarez-Devesa, F. Bermejo-Martínez, Ma Herminia Bollaín-Rodríguez, Spectrophotometric determination of arsenic with diethyldithiocarbamic acid silver salt and borohydride as reducing agent Microchemical Journal. ,vol. 23, pp. 360- 365 ,(1978) , 10.1016/0026-265X(78)90089-9
Shingara S. Sandhu, Direct spectrophotometric method for the determination of hydrochloric acid-releasable arsenic in sediments and soils Analyst. ,vol. 106, pp. 311- 315 ,(1981) , 10.1039/AN9810600311
Gerald I. Spielholtz, Gloria C. Toralballa, Ralph J. Steinberg, Determination of arsenic in coal and in insecticides by atomic absorption spectroscopy. Mikrochimica Acta. ,vol. 59, pp. 919- 923 ,(1971) , 10.1007/BF01218917
C. Grant, A.J. Dobbs, The growth and metal content of plants grown in soil contaminated by a copper/chrome/arsenic wood preservative Environmental Pollution. ,vol. 14, pp. 213- 226 ,(1977) , 10.1016/0013-9327(77)90121-5
V. Bencko, A. Dobišová, M. Máčaj, Arsenic in the hair of a non-occupationally exposed population Atmospheric Environment (1967). ,vol. 5, pp. 275- 279 ,(1971) , 10.1016/0004-6981(71)90095-3
Amit Chatterjee, Dipankar Das, Badal K. Mandal, Tarit Roy Chowdhury, Gautam Samanta, Dipankar Chakraborti, Arsenic in ground water in six districts of West Bengal, India: the biggest arsenic calamity in the world. Part I. Arsenic species in drinking water and urine of the affected people Analyst. ,vol. 120, pp. 643- 650 ,(1995) , 10.1039/AN9952000643
D. A. Lyttle, E. H. Jensen, W. A. Struck, Simple Volumetric Assay for Sodium Borohydride Analytical Chemistry. ,vol. 24, pp. 1843- 1844 ,(1952) , 10.1021/AC60071A041