Document Detail


Lead in preserved duck eggs: field screening test and confirmation and quantitation by atomic absorption spectrophotometry and anodic stripping voltammetry.
MedLine Citation:
PMID:  7275886     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Analysis of preserved duck eggs in this laboratory by acid digestion and atomic absorption spectrophotometry has shown that addition of lead salts to the egg coating to speed the preservation process results in lead in the egg albumen and yolk. The lead levels decrease as the lead passes through successive membranes, i.e., the lead level in the yolk is lower than that in the albumen. A method has been developed for the field screening of preserved duck eggs for the presence of lead in which a portion of the egg coating is shaken with 4% acetic acid, and the resulting solution is tested by a modification of the AOAC dithizone method. A quantitative method for laboratory confirmation of lead in egg albumen and/or yolk has also been developed in which lead is determined by atomic absorption spectrophotometry or anodic stripping voltammetry after closed-system Teflon-cup digestion with nitric acid.
Authors:
B Krinitz; N Tepedino
Related Documents :
12725656 - Bioavailability of phyto-oestrogens.
5934496 - Absorption and utilization of organic matter by the strict autotroph, thiobacillus thio...
1806286 - Enhancement effect of lauric acid on the rectal absorption of propranolol from supposit...
7714746 - Nasal mucosal metabolism and absorption of pentapeptide enkephalin analogs having varyi...
15639096 - The transformation and toxicity of anthraquinone dyes during thermophilic (55 degrees c...
12725656 - Bioavailability of phyto-oestrogens.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal - Association of Official Analytical Chemists     Volume:  64     ISSN:  0004-5756     ISO Abbreviation:  J Assoc Off Anal Chem     Publication Date:  1981 Jul 
Date Detail:
Created Date:  1981-11-24     Completed Date:  1981-11-24     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  7505559     Medline TA:  J Assoc Off Anal Chem     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1014-6     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Animals
Ducks*
Eggs / analysis*
Electrochemistry
Lead / analysis*
Spectrophotometry, Atomic / methods
Chemical
Reg. No./Substance:
7439-92-1/Lead

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Effects of lasalocid or monensin on lactate-producing or -using rumen bacteria.
Next Document:  Thin layer chromatographic and atomic absorption spectrophotometric determination of methyl mercury.