Antimony speciation at ultra trace levels using hydride generation atomic fluorescence spectrometry and 8-hydroxyquinoline as an efficient masking agent

2001 ◽  
Vol 432 (2) ◽  
pp. 293-302 ◽  
Author(s):  
Tian-Long Deng ◽  
Yu-Wei Chen ◽  
Nelson Belzile
Keyword(s):  
Hydride Generation ◽  
Fluorescence Spectrometry ◽  
Atomic Fluorescence Spectrometry ◽  
Atomic Fluorescence ◽  
Ultra Trace ◽  
Antimony Speciation

scholarly journals A non-chromatographic automated system for antimony speciation in natural water exploiting multisyringe flow injection analysis coupled with online hydride generation – atomic fluorescence spectrometry

2015 ◽  
Vol 30 (5) ◽  
pp. 1133-1141 ◽  
Author(s):  
Lindomar A. Portugal ◽  
Laura Ferrer ◽  
Antonio M. Serra ◽  
Douglas Gonçalves da Silva ◽  
Sérgio Luis C. Ferreira ◽  
...  
Keyword(s):  
Flow Injection ◽  
Flow Injection Analysis ◽  
Natural Water ◽  
Hydride Generation ◽  
Automated System ◽  
Fluorescence Spectrometry ◽  
Atomic Fluorescence Spectrometry ◽  
Atomic Fluorescence ◽  
Multisyringe Flow Injection Analysis ◽  
Antimony Speciation

A non-chromatographic automated system for antimony speciation.

Development of an Analytical Method for Antimony Speciation in Vegetables by HPLC-Hydride Generation-Atomic Fluorescence Spectrometry

2012 ◽  
Vol 95 (4) ◽  
pp. 1176-1182 ◽  
Author(s):  
David Olivares ◽  
Manuel Bravo ◽  
Jorg Feldmann ◽  
Andrea Raab ◽  
Alexander Neaman ◽  
...  
Keyword(s):  
Hydride Generation ◽  
Sample Volume ◽  
Extraction Yield ◽  
Fluorescence Spectrometry ◽  
Atomic Fluorescence Spectrometry ◽  
Mechanical Agitation ◽  
Antimony Content ◽  
Atomic Fluorescence ◽  
The Stability ◽  
Antimony Speciation

Abstract A new method for antimony speciation in terrestrial edible vegetables (spinach, onions, and carrots) was developed using HPLC with hydride generation-atomic fluorescence spectrometry. Mechanical agitation and ultrasound were tested as extraction techniques. Different extraction reagents were evaluated and optimal conditions were determined using experimental design methodology, where EDTA (10 mmol/L, pH 2.5) was selected because this chelate solution produced the highest extraction yield and exhibited the best compatibility with the mobile phase. The results demonstrated that EDTA prevents oxidation of Sb(III) to Sb(V) and maintains the stability of antimony species during the entire analytical process. The LOD and precision (RSD values obtained) for Sb(V), Sb(III), and trimethyl Sb(V) were 0.08, 0.07, and 0.9 μg/L and 5.0, 5.2, and 4.7%, respectively, for a 100 μL sample volume. The application of this method to real samples allowed extraction of 50% of total antimony content from spinach, while antimony extracted from carrots and onion samples ranged between 50 and 60 and 54 and 70%, respectively. Only Sb(V) was detected in three roots (onion and spinach) that represented 60–70% of the total antimony in the extracts.

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