DIRECT-DETECTION OF ANTIMONY IN ENVIRONMENTAL AND BIOLOGICAL SAMPLES AT TRACE CONCENTRATIONS BY LASER-INDUCED FLUORESCENCE IN GRAPHITE-FURNACE WITH AN INTENSIFIED CHARGE-COUPLED-DEVICE

被引:22
作者
ENGER, J [1 ]
MARUNKOV, A [1 ]
CHEKALIN, N [1 ]
AXNER, O [1 ]
机构
[1] UMEA UNIV,DEPT EXPTL PHYS,S-90187 UMEA,SWEDEN
关键词
LASER-INDUCED FLUORESCENCE IN GRAPHITE FURNACE; ELECTROTHERMAL ATOMIZATION LASER EXCITED ATOMIC FLUORESCENCE SPECTROMETRY; ANTIMONY; HUMAN SERUM AND WHOLE BLOOD;
D O I
10.1039/ja9951000539
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The technique of laser-induced fluorescence in graphite furnace (LIF-GF) with intensified charge coupled device (ICCD) detection was used for the detection of Sb at pg ml(-1) concentrations in various biological and environmental samples. The ICCD detector permits the simultaneous multichannel detection of large fluorescence wavelength regions, which gives the user the possibility to control and correct for various background signals (which is important when complex environmental and biological samples are to be analysed). The detection limit for Sb in a pure water solution was found to be 5 fg. Antimony was directly detected in pure aqueous solutions down to fg ml(-1) concentrations. A variety of aqueous and solid environmental and biological samples were investigated with respect to their Sb content. Good agreement between the measured and certified Sb contents (at pg ml(-1)-ng ml(-1) levels) was obtained for various certified reference materials, viz., marine sediments (MESS-1 and BCSS-1) and riverine water (SLRS-2). Measurements of the Sb content in non-certified natural drinking water, estuarine water reference material (SLEW-1), serum reference material (Seronorm), and whole blood of healthy Swedish people were also performed. After a thorough investigation and elimination Of various sources of contamination (regarding sampling and sample storage), typical levels of Sb in human whole blood at or below several tens of pg ml(-1) were obtained. These levels are significantly lower than previously established values of the normal Sb content in human blood. The detection limit for Sb in human whole blood was close to that of pure water.
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页码:539 / 549
页数:11
相关论文
共 38 条
[1]   DETECTION OF TRACE AMOUNTS OF CR BY 2 LASER-BASED SPECTROSCOPIC TECHNIQUES - LASER-ENHANCED IONIZATION IN FLAMES AND LASER-INDUCED FLUORESCENCE IN GRAPHITE-FURNACE [J].
AXNER, O ;
RUBINSZTEINDUNLOP, H .
APPLIED OPTICS, 1993, 32 (06) :867-884
[2]   DETECTION OF EXTREMELY LOW LEAD CONCENTRATIONS BY LASER ATOMIC FLUORESCENCE SPECTROMETRY [J].
BOLSHOV, MA ;
ZYBIN, AV ;
KOLOSHNIKOV, VG ;
VASNETSOV, MV .
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 1981, 36 (04) :345-350
[3]   ATOMIC FLUORESCENCE SPECTROMETRY WITH LASER EXCITATION [J].
BOLSHOV, MA ;
ZYBIN, AV ;
SMIRENKINA, II .
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 1981, 36 (12) :1143-1152
[4]   LASER-EXCITED ATOMIC FLUORESCENCE SPECTROMETRY IN FLAMES, PLASMAS AND ELECTROTHERMAL ATOMIZERS [J].
BUTCHER, DJ ;
DOUGHERTY, JP ;
PRELI, FR ;
WALTON, AP ;
WEI, GT ;
IRWIN, RL ;
MICHEL, RG .
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 1988, 3 (08) :1059-1078
[5]   DETERMINATION OF THALLIUM, MANGANESE, AND LEAD IN FOOD AND AGRICULTURAL STANDARD REFERENCE MATERIALS BY ELECTROTHERMAL ATOMIZER LASER-EXCITED ATOMIC FLUORESCENCE AND ATOMIC-ABSORPTION SPECTROMETRY WITH SLURRY SAMPLING [J].
BUTCHER, DJ ;
IRWIN, RL ;
TAKAHASHI, J ;
SU, GZ ;
WEI, GT ;
MICHEL, RG .
APPLIED SPECTROSCOPY, 1990, 44 (09) :1521-1533
[6]   THERMAL STABILIZATION OF ANTIMONY IN ELECTROTHERMAL ATOMIC-ABSORPTION SPECTROMETRY [J].
DAHL, K ;
THOMASSEN, Y ;
MARTINSEN, I ;
RADZIUK, B ;
SALBU, B .
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 1994, 9 (01) :1-5
[7]  
DELVES HT, 1981, PROG ANAL AT SPECTRO, V4, P1
[8]   DETERMINATION OF THALLIUM IN BOVINE LIVER AND MOUSE BRAINS BY LASER-EXCITED ATOMIC FLUORESCENCE SPECTROMETRY IN A GRAPHITE TUBE FURNACE [J].
DOUGHERTY, JP ;
COSTELLO, JA ;
MICHEL, RG .
ANALYTICAL CHEMISTRY, 1988, 60 (04) :336-340
[9]   LASER-EXCITED ATOMIC FLUORESCENCE SPECTROMETRY IN AN ATOMIC-ABSORPTION GRAPHITE TUBE FURNACE [J].
DOUGHERTY, JP ;
PRELI, FR ;
MICHEL, RG .
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 1987, 2 (05) :429-434
[10]   ANALYTICAL APPLICATION OF LASER-EXCITED ATOMIC FLUORESCENCE USING A GRAPHITE CUP ATOMIZER [J].
FALK, H ;
PAETZOLD, HJ ;
SCHMIDT, KP ;
TILCH, J .
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 1988, 43 (9-11) :1101-1109