Corporate Banner
Satellite Banner
Food & Beverage Analysis
Scientific Community
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Determination of Parent and Substituted Polycyclic Aromatic Hydrocarbons in High-Fat Salmon

Published: Monday, July 16, 2012
Last Updated: Monday, July 16, 2012
Bookmark and Share
Researchers from Oregon State University describe modified QuEChERS methods that show good potential for use in monitoring levels of PAHs in lipid-rich fish.

Abstract
A fast and easy modified QuEChERS (quick, easy, cheap, rugged and safe) extraction method has been developed and validated for determination of 33 parent and substituted polycyclic aromatic hydrocarbons (PAHs) in high-fat smoked salmon that greatly enhances analyte recovery compared to traditional QuEChERS procedures. Sample processing includes extraction of PAHs into a solution of ethyl acetate, acetone and isooctane followed by cleanup with dispersive SPE and analysis by GC-MS in SIM mode. Method performance was assessed in spike recovery experiments (500 μg/g wet weight) in three commercially available smoked salmon with 3-11% fat. Recoveries of some 2-, 3- and 5-ring PAHs were improved 50-200% over traditional methods, while average recovery across all PAHs was improved 67%. Method precision was good with replicate extractions typically yielding relative standard deviations <10%, and detection limits were in the low ng/g range. With this method, a single analyst could extract and clean up ≥60 samples for PAH analysis in an 8 h work day.

The article is published online in the Journal of Agricultural and Food Chemistry and is free to access.


Further Information

Join For Free

Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 4,000+ scientific posters on ePosters
  • More than 5,300+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.

Related Content

Food Analysis Applications of Core-Shell Columns in HPLC
Despite applications of core-shell particles columns in food analysis being at an early stage, articles describing their use for improving separations of several classes of compounds are becoming more frequent.
Wednesday, October 19, 2016
Acetaldehyde and Formaldehyde Content in Foods
Korean researchers have determined the content of the toxic and carcinogenic aldehydes, acetaldehyde and formaldehyde, in a variety of food groups.
Monday, November 09, 2015
Comparison of Caffeinated and Decaffeinated Coffee - Implications for Alzheimer's Disease
Researchers from the National University of Singapore successfully demonstrated the viability of GC-TOF-MS as an analytical platform for metabolomics analysis of coffee samples.
Monday, September 08, 2014
Immunochromatographic Assay for Rapid Salmonella Detection
The test strip described in the study would be beneficial for poultry farms and other veterinary production for the monitoring of S. Typhimurium and/or S. Enteritidis contamination.
Tuesday, August 12, 2014
Application of MALDI-TOF MS for the Identification of Food Borne Bacteria
MALDI-TOF MS is a promising platform for quick, flexible, and reliable identification of food microbial isolates.
Tuesday, April 29, 2014
Monitoring and Risk Assessment of Pesticide Residues in Commercially Dried Vegetables
The study aimed to analyze the presence of 253 pesticides commonly used on dried vegetables and to check their compliance with existing regulations.
Tuesday, March 11, 2014
Determination of Cyanogenic Compounds in Edible Plants by Ion Chromatography
Ion chromatography following acid hydrolysis was employed to prevent thiocyanate interference of the colorimetric methods.
Tuesday, December 10, 2013
LC-MS/MS-Based Multibiomarker Approaches for the Assessment of Human Exposure to Mycotoxins
To overcome the disadvantages of indirect methods, biomarker approaches were developed as a biomonitoring tool for some major mycotoxins.
Wednesday, November 13, 2013
Predictors of Obesity: The "Power" of the Omics
Diet and nutrient biomarkers should provide objective measures of dietary intake and nutritional status, as well as an integrated measure of intake, absorption and metabolism.
Friday, October 25, 2013
Optical Biosensors for Food Quality and Safety Assurance
With high specificity, convenience and quick response there is growing interest in biosensors for food safety testing.
Monday, October 07, 2013
Pesticide Residue Screening Using a Novel Artificial Neural Network Combined with a Bioelectric Cellular Biosensor
Researchers have developed and trained a customized feed forward artificial neural network for the classification of the pesticide groups, pyrethroids, carbamates, and organophosphates.
Friday, September 20, 2013
Effect of Trans Fatty Acid Intake on LC-MS and NMR Plasma Profiles
In this study, NMR and LC-MS untargeted metabolomics has been used as an approach to explore the impact of trans fatty acid intake on plasma metabolites.
Tuesday, August 13, 2013
Low Density Solvent-Based Dispersive Liquid-Liquid Microextraction for the Determination of Synthetic Antioxidants in Beverages by HPLC
In this study, researchers propose a method that could be used for monitoring as well as controlling the synthetic antioxidants in aqueous food samples.
Wednesday, July 31, 2013
What's New in the Diagnosis and Management of Food Allergy in Children?
With the increasing worldwide prevalence of food allergy comes a renewed impetus for improving diagnosis and management.
Monday, June 24, 2013
Genetically Modified Crops and Food Security
Although GM crops are not a panacea for the problems of hunger and malnutrition, evidence suggests that GM crops can be an important component in a broader food security strategy.
Monday, June 24, 2013
Scientific News
Bird Flu Confirmed in the Netherlands
An outbreak of H5 avian influenza was confirmed in the Flevoland province of the Netherlands.
Pasteurised Bacterium Reduces Obesity and Diabetes
Researchers have discovered that an intestinal bacterium provides a lasting effect on the intestinal barrier.
Failings in Conveying Risks of Undercooked Meat
A study has found that restaurants do not communicate the risks of eating undercooked meats.
Accelerating the Detection of Foodborne Bacterial Outbreaks
The speed of diagnosis of foodborne bacterial outbreaks could be improved by a new technique developed by researchers at the Georgia Institute of Technology.
Sweet Tooth Science - Chocolate Antioxidants
Researchers develop a faster and cheaper method to test for antioxidants in chocolate.
Food Additives Promote Inflammation, Colon Cancer
Dietary emulsifiers promoted colon cancer in a mouse model by altering gut microbes and increasing gut inflammation.
Detecting Food Contaminants with a Smartphone
Researchers aim to develop a novel food safety monitoring method using a smartphone.
Alarming Glyphosate Levels Found in Foods
Glyphosate has been found at alarming levels in a wide range of best-selling foods across the U.S.
Are Sweeteners as Natural as We Think?
New research study supports stevia’s naturality by identifying nine required molecules present in the dried stevia leaf.
Pre-Cut Salad May Encourage Growth of Salmonella
Study suggests damage to produce in bagged salads encourage the presence of Salmonella.
SELECTBIO

SELECTBIO Market Reports
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
4,000+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
5,300+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!