Atomic absorption spectrometry tellurium

Numerous methods have been pubUshed for the determination of trace amounts of tellurium (33—42). Instmmental analytical methods (qv) used to determine trace amounts of tellurium include atomic absorption spectrometry, flame, graphite furnace, and hydride generation inductively coupled argon plasma optical emission spectrometry inductively coupled plasma mass spectrometry neutron activation analysis and spectrophotometry (see Mass spectrometry Spectroscopy, optical). Other instmmental methods include polarography, potentiometry, emission spectroscopy, x-ray diffraction, and x-ray fluorescence. 

Fiorina JA, Jones JW, Capar SG. 1976. Sequential determination of arsenic, selenium, antimony and tellurium in foods via rapid hydride evolution and atomic absorption spectrometry. Anal Chem 48 120-125. 

Muangnoicharoen S, Chiou KY and Manuel OK (1986) Determination of selenium and tellurium in the gas phase using specific columns and atomic absorption spectrometry. Anal Chem 58 2811— 2813. 

Whole-blood concentrations of tellurium in normal subjects range from 0.15 to 0.3 jgL (Montfort et al. 1979). Normal urine tellurium concentrations were measured using hydride generation ICP-AES and atomic absorption spectrometry (Fodor et al. 1983, Kobayashi et al. 1991), and values ranging from <0.1 to 10 jgL were found. Concentrations of tellurium in the hair and nails of 61 normal Japanese adults were lower than the detection limit... 

Jin K Taga M, Yoshida H, and Hikime S (1979) Differential determination of Tdlurium(IV) and Tellurium(VI) by atomic absorption spectrometry after hydride generation. Combined use of tita-nium(III)-chloride as a prereductant and sodium borohydride solution. Bull Chem Soc Jpn 52 2276-2280. 

Kobayashi Kand Imaizumi K (1991) Determination of tellurium in urine by graphite furnace atomic absorption spectrometry after solvent extraction. 

Weibust G, Langmyhr FJ and Thomassen Y (1981) Thermal stabilization of inorganic and organically bound tellurium for electrothermal atomic absorption spectrometry. Anal Chim Acta 128 23-29. 

Yu MQ, Liu GQ and Jin Q (1983) Determination of trace arsenic, antimony, selenium and tellurium in various oxidation states in water by hydride generation atomic absorption spectrometry after enrichment and separation with thiol cotton. Talanta 30 57-62. 

Suddendorf, R.F. (1981) Interference by selenium and tellurium in the determination of mercury by cold vapor generation atomic absorption spectrometry. Anal. Chem., 53, 2234-2236. 

Saeed, K. and Thomassen, Y. (1981). Spectral interferences from phosphate matrices in the determination of arsenic, antimony, selenium and tellurium by electrothermal atomic absorption spectrometry. Anal. Chim. Acta 130, 281. 

A hair sample (1 g) is washed with water, acetone, ether, and detergents followed by a successive rinse with water, acetone, and ether. After washing and drying the hair sample, it is digested with nitric, perchloric, and sulfuric acids. After digestion, the hydrochloric acid concentration of the sample solution is adjusted to 4 M, and it is boiled for 5 min. The tellurium content in the sample solution is determined by the hydride generation atomic absorption spectrometry described above. The lower detection limit is 1 ng/g and the levels of unexposed subjects are below the detection limit [13]. 

T. Ashino, K. Takada, and K. Hirokawa. Determination of trace amounts of selenium and tellurium in high-purity iron by electrothermal atomic absorption spectrometry after reductive coprecipitation with palladium using ascorbic add. Analytica Chimica Acta 297 443-451,1994. 

Klinkenberg, H., Beeren,T.,Van Borm,W., van der Linden, E, and Raets, M. (1993).The use of an enriched isotope as an on-line internal standard in inductively coupled plasma mass spectrometry A reference method for a proposed determination of tellurium in industrial waste water by means of graphite fornace atomic absorption spectrometry. Spectrochim. Acta, Part B 4SB(5),649. 

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