ScholarLens Back to search
2004•PubMedRequires access

[Determination of trace germanium in coal by spectrophotometry with 2,4-dichlorophenylfluorone].

Sai Yin, Sheng Li, Fu-bin Han

Open publisher page 2 citations

Abstract

A method for the determination of germanium in coal samples by spectrophotometry has been developed. The color reaction of germanium with 2,4-dichlorophenylfluorone (2,4-DCIPF) in the presence of cetyltrimethylammonium bromide (CTMAB) has been studied. The results show that Ge(IV) reacts on 2,4-DCIPF and CTMAB to form a multicomponent complex in a 1.8-2.5 mol x L(-1) H2SO4 medium. The complex has the maximum absorption wavelength at 516 nm and its apparent molar absorptivity epsilon is 1.38 x 10(5) L x mol(-1) x cm(-1). Beer's law is obeyed in the range of 0-12.5 microg x (25 mL)(-1) for Ge(IV). The recovery of standard addition is 103%-106% and the relative standard deviation (RSD) is 1.1%-1.7%. This method has been applied to the determination of Ge(IV) in coal samples with satisfactory results.

About this research paper

What this paper is about

A method for the determination of germanium in coal samples by spectrophotometry has been developed. The color reaction of germanium with 2,4-dichlorophenylfluorone (2,4-DCIPF) in the presence of cetyltrimethylammonium bromide (CTMAB) has been studied. The results show that Ge(IV) reacts on 2,4-DCIPF and CTMAB to form a multicomponent complex in a 1.8-2.5 mol x L(-1) H2SO4 medium. The complex has the maximum absorption wavelength at 516 nm and its apparent molar absorptivity epsilon is 1.38 x 10(5) L x mol(-1) x cm(-1). Beer's law is obeyed in the range of 0-12.5 microg x (25 mL)(-1) for Ge(IV). The recovery of standard addition is 103%-106% and the relative standard deviation (RSD) is 1.1%-1.7%. This method has been applied to the determination of Ge(IV) in coal samples with satisfactory results.

Why it matters

OpenAlex reports 2 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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 method for the determination of germanium in coal samples by spectrophotometry has been developed. The color reaction of germanium with 2,4-dichlorophenylfluorone (2,4-DCIPF) in the presence of cetyltrimethylammonium bromide (CTMAB) has been studied. The results show that Ge(IV) reacts on 2,4-DCIPF and CTMAB to form a multicomponent complex in a 1.8-2.5 mol x L(-1) H2SO4 medium. The complex has the maximum absorption wavelength at 516 nm and its apparent molar absorptivity epsilon is 1.38 x 10(5) L x mol(-1) x cm(-1). Beer's law is obeyed in the range of 0-12.5 microg x (25 mL)(-1) for Ge(IV). The recovery of standard addition is 103%-106% and the relative standard deviation (RSD) is 1.1%-1.7%. This method has been applied to the determination of Ge(IV) in coal samples with satisfactory results.

Key concepts: Molar absorptivity, Germanium, Spectrophotometry, Chemistry, Analytical Chemistry (journal), Bromide, Relative standard deviation, Absorption (acoustics)

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
[Determination of trace germanium in coal by spectrophotometry with 2,4-dichlorophenylfluorone]. — Research Paper | ScholarLens