Quality control in the speciation analysis of butyltin compounds in marine biological samples by hydride generation-cold trapping and on-line quartz furnace atomic absorption spectrometry

1994 ◽  
Vol 8 (7-8) ◽  
pp. 595-600 ◽  
Author(s):  
F. Pannier ◽  
A. Astruc ◽  
M. Astruc
Keyword(s):  
Quality Control ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Biological Samples ◽  
Hydride Generation ◽  
Absorption Spectrometry ◽  
Speciation Analysis ◽  
Marine Biological ◽  
On Line ◽  
Butyltin Compounds

Determination of Inorganic Tin in Biological Samples by Hydride Generation-Atomic Absorption Spectrometry after Silica Gel Cleanup

1988 ◽  
Vol 71 (2) ◽  
pp. 373-374
Author(s):  
Taizo Tsuda ◽  
Minoru Wada ◽  
Shigeru Aoki ◽  
Yoshihiro Matsui
Keyword(s):  
Standard Deviation ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Silica Gel ◽  
Biological Samples ◽  
Hydride Generation ◽  
Absorption Spectrometry ◽  
Fish Muscle ◽  
Average Standard Deviation

Abstract A method is described for the determination of inorganic tin in biological samples by hydride generation-atomic absorption spectrometry (HG-AAS). A sample is extracted with ethyl acetate after addition of HC1 and NaCl. The concentrated extract is passed through a silica gel column. The column is washed with ethanol, water, and 0.2N HC1 successively, and then inorganic tin is eluted with 2N HC1 and measured by HG-AAS. Recoveries from fish muscle spiked with 0.1 ng/g Sn4+ are 78.9 ± 4.2% (average ± standard deviation, n = 5). The detection limit is 0.01 jug/g as Sn.

scholarly journals Determination of Inorganic Arsenic in Marine Food Samples by Hydrochloric Acid Distillation and Flow-Injection Hydride-Generation Atomic Absorption Spectrometry

1999 ◽  
Vol 82 (5) ◽  
pp. 1217-1223 ◽  
Author(s):  
Joar Karsten Øygard ◽  
Anne-Katrine Lundebye ◽  
Kåre Julshamn
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Flow Injection ◽  
Biological Samples ◽  
Certified Reference Materials ◽  
Hydride Generation ◽  
Absorption Spectrometry ◽  
Fish Fillet ◽  
Inorganic As

Abstract A simple, rapid, and reliable method was developed for determination of inorganic As in biological samples such as fish fillet. Inorganic AS was distilled from the sample as AsCl3 with HCI. The separated inorganic AS was determined by flow-injection hydride-generation atomic absorption spectrometry after prereduction with Kl and HCI. The influences of various concentrations of Kl, ascorbic acid, and HCI in the prereduction stage; NaBH4 as the reductant; and HCI as the carrier solution on analytical results were studied. Digestion was performed in a Kjeldahl digestion system for 75 min with 4 mL nitric acid and 1 mL sulfuric acid at 380°C. The concentrations of inorganic As in samples were less than 0.1 mg/kg dry weight for fish fillet and somewhat higher for crustaceans and bivalve molluscs. The total and inorganic As contents of various marine biological samples and certified reference materials were determined.

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