ScholarLens Back to search
1992•Unpublished venueRequires access

DETERMINATION OF Te(IV, VI) IN ENVIRONMENTAL SAMPLES BY EXTRACTION AND GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY

Junxiang Liu

Open publisher page 0 citations

Abstract

A sensitive, accurate and rapid method for the determination of Te(Ⅳ) and Te(Ⅵ) in environmental samples in the 10~(-9)g level by extraction and graphite furnace atomic absorption spectrometry is presented. The conditions of determination and extraction, several matrix modifiers with respect to their stabilizing power for tellurium in a graphite thrnace are inverstigated. Possible interferences from cations and anions are tried and it is shown that their quantifies below certain limit do not affect the analyses of tellurium. The calibration graphs are linear in the range of 1 to 100 ng/g for tellurium. Characteristic content is 0.025ng and the relative standard deviation of 11 determinations for samples at ng/g magnitude is less than 6%, whereas the recoverys for Te(Ⅳ) and Te(Ⅵ) are 91.7～105% and 95～105% respectively.

About this research paper

What this paper is about

A sensitive, accurate and rapid method for the determination of Te(Ⅳ) and Te(Ⅵ) in environmental samples in the 10~(-9)g level by extraction and graphite furnace atomic absorption spectrometry is presented. The conditions of determination and extraction, several matrix modifiers with respect to their stabilizing power for tellurium in a graphite thrnace are inverstigated. Possible interferences from cations and anions are tried and it is shown that their quantifies below certain limit do not affect the analyses of tellurium. The calibration graphs are linear in the range of 1 to 100 ng/g for tellurium. Characteristic content is 0.025ng and the relative standard deviation of 11 determinations for samples at ng/g magnitude is less than 6%, whereas the recoverys for Te(Ⅳ) and Te(Ⅵ) are 91.7～105% and 95～105% respectively.

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

A sensitive, accurate and rapid method for the determination of Te(Ⅳ) and Te(Ⅵ) in environmental samples in the 10~(-9)g level by extraction and graphite furnace atomic absorption spectrometry is presented. The conditions of determination and extraction, several matrix modifiers with respect to their stabilizing power for tellurium in a graphite thrnace are inverstigated. Possible interferences from cations and anions are tried and it is shown that their quantifies below certain limit do not affect the analyses of tellurium. The calibration graphs are linear in the range of 1 to 100 ng/g for tellurium. Characteristic content is 0.025ng and the relative standard deviation of 11 determinations for samples at ng/g magnitude is less than 6%, whereas the recoverys for Te(Ⅳ) and Te(Ⅵ) are 91.7～105% and 95～105% respectively.

Key concepts: Tellurium, Graphite furnace atomic absorption, Detection limit, Analytical Chemistry (journal), Extraction (chemistry), Calibration curve, Graphite, Chemistry

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
DETERMINATION OF Te(IV, VI) IN ENVIRONMENTAL SAMPLES BY EXTRACTION AND GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY — Research Paper | ScholarLens