Hydride Generation Atomic Absorption Determination of Tellurium Species in Environmental Samples with in Situ Concentration in a Graphite Furnace

Byung Mok Yoon; Sang Chul Shim; Hyung Chik Pyun; Dong Soo Lee

doi:10.2116/analsci.6.561

Hydride Generation Atomic Absorption Determination of Tellurium Species in Environmental Samples with in Situ Concentration in a Graphite Furnace

Byung Mok Yoon, Sang Chul Shim, Hyung Chik Pyun, Dong Soo Lee

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

An ultrasensitive method is described for the measurement of picogram amounts of tellurium species in environmental samples. The method involves selective Te(IV) reduction by sodium borohydride to hydrogen telluride, trapping in situ in a modified graphite furnace, and subsequent atomic absorption detection. The total amount of Te is determined after Te(VI) reduction to Te(IV) by boiling in hydrochloric acid. The difference between the amounts of Te(IV) and total-Te is taken as the amount of Te(VI). The absolute detection limit ranges from 2 to 4 pg of tellurium. The precision of the method is 5.1% for 20 pg and 2.5% for 200 pg of tellurium. Analytical results are presented for natural waters, aerosol particles, geological and biological materials.

Original language	English
Pages (from-to)	561-566
Number of pages	6
Journal	Analytical Sciences
Volume	6
Issue number	4
DOIs	https://doi.org/10.2116/analsci.6.561
Publication status	Published - 1990

All Science Journal Classification (ASJC) codes

Analytical Chemistry

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10.2116/analsci.6.561

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title = "Hydride Generation Atomic Absorption Determination of Tellurium Species in Environmental Samples with in Situ Concentration in a Graphite Furnace",

abstract = "An ultrasensitive method is described for the measurement of picogram amounts of tellurium species in environmental samples. The method involves selective Te(IV) reduction by sodium borohydride to hydrogen telluride, trapping in situ in a modified graphite furnace, and subsequent atomic absorption detection. The total amount of Te is determined after Te(VI) reduction to Te(IV) by boiling in hydrochloric acid. The difference between the amounts of Te(IV) and total-Te is taken as the amount of Te(VI). The absolute detection limit ranges from 2 to 4 pg of tellurium. The precision of the method is 5.1% for 20 pg and 2.5% for 200 pg of tellurium. Analytical results are presented for natural waters, aerosol particles, geological and biological materials.",

author = "Yoon, {Byung Mok} and Shim, {Sang Chul} and Pyun, {Hyung Chik} and Lee, {Dong Soo}",

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AU - Yoon, Byung Mok

AU - Shim, Sang Chul

AU - Pyun, Hyung Chik

AU - Lee, Dong Soo

PY - 1990

Y1 - 1990

N2 - An ultrasensitive method is described for the measurement of picogram amounts of tellurium species in environmental samples. The method involves selective Te(IV) reduction by sodium borohydride to hydrogen telluride, trapping in situ in a modified graphite furnace, and subsequent atomic absorption detection. The total amount of Te is determined after Te(VI) reduction to Te(IV) by boiling in hydrochloric acid. The difference between the amounts of Te(IV) and total-Te is taken as the amount of Te(VI). The absolute detection limit ranges from 2 to 4 pg of tellurium. The precision of the method is 5.1% for 20 pg and 2.5% for 200 pg of tellurium. Analytical results are presented for natural waters, aerosol particles, geological and biological materials.

AB - An ultrasensitive method is described for the measurement of picogram amounts of tellurium species in environmental samples. The method involves selective Te(IV) reduction by sodium borohydride to hydrogen telluride, trapping in situ in a modified graphite furnace, and subsequent atomic absorption detection. The total amount of Te is determined after Te(VI) reduction to Te(IV) by boiling in hydrochloric acid. The difference between the amounts of Te(IV) and total-Te is taken as the amount of Te(VI). The absolute detection limit ranges from 2 to 4 pg of tellurium. The precision of the method is 5.1% for 20 pg and 2.5% for 200 pg of tellurium. Analytical results are presented for natural waters, aerosol particles, geological and biological materials.

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Hydride Generation Atomic Absorption Determination of Tellurium Species in Environmental Samples with in Situ Concentration in a Graphite Furnace

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