Corporate Banner
Satellite Banner
Technology Networks Header
Thursday, December 18, 2014
Technology Networks
 
Register | Sign in
Home Page>Posters

  Posters

Analysis of 10 systemic pesticide residues in various baby foods using liquid chromatography-tandem mass spectrometry
Jae-Han Shim, Angel Yang, A. M. Abd El-Aty, Jong-Hyouk Park, Ayman Goudah, Md. Musfiqur Rahman, Jung-Ah Do

The method developed was sensitive and selective, and detected the analytes below the MRL established by the European Commission and the Korea Food and Drug Administration. The combination of QuEChERS sample preparation and LC-MS/MS analysis provided acceptable quantitative and qualitative results in baby food.

More information
Residue Analysis of Etoxazole in Red Pepper using Gas Chromatography: Application to Dissipation Pattern
Sung-Woo Kim, Jin Jang, Md. Musfiqur Rahman, A. M. Abd El-Aty, Ah-Young Ko, Jong-Heui Choi, Jae-Han Shim

The dSPE of QuEChERS was replaced with an SPE cartridge, which provided a very clean chromatogram, although a small recovery percentage was obtained. The method fulfilled all validation criteria and was useful for monitoring etoxazole residues in red pepper. It can also be used and optimized for other fruit and vegetable matrices.

More information
Simultaneous multi-determination and transfer of eight pesticide residues from green tea leaves to infusion using gas chromatography
Sung-Woo Kim, Soon-Kil Cho, A. M. Abd El-Aty, Md. Musfiqur Rahman, Jeong-Heui Choi, Jae-Han Shim

Acetonitrile was used as the extraction solvent with sodium chloride to enhance the partitioning of analytes into the organic phase. Recovery indicated good method accuracy and repeatability, and was within the acceptable range for residue determinations. The mere presence of pesticide residues in tea does not necessarily mean that the tea has become toxic and would pose a health hazard. We revealed that only a negligible or small percentage of pesticides in tea is transferred to the infusion.

More information
Matrix enhancement effect: A blessing or curse for gas chromatography?
Jae-Han Shim, Md. Musfiqur Rahman, A. M. Abd El-Aty

A sharp, narrow, and sensitive peak is a pre-condition for a sensitive GC analysis. Therefore, a protectant is needed to protect the analyte from any type of distortion for integration and to prevent overestimation. Existing solutions do not overcome these problems completely due to limitations. As the matrix enhancement problem originated from matrix components, its solution should come from similar components.

More information
CAPILLARY ELECTROPHORESIS OF APIGENIN
Paulina Furmaniak, Pawel Kubalczyk, Rafal Glowacki

* Application of an appropriate mode of extraction allowed to use on-line stacking method for the determination of apigenin in plant extracts,
* The low limit of detection was 5 nmol in 1 mL of plant extract,
* Presented procedure allows approximately 20-fold increase of sensitivity,
* Elaborated assay can be useful for the determination of apigenin in biological samples.

More information
INTERACTION BETWEEN WHEY PROTEIN NANOPARTICLES AND FATTY ACIDS
Hassan, Z.M.R*, Awad R. A.*, El-Sayed, M. M. **, Mevat I. Foda**, Otzen, D.*** and Heba H. Salama**

Nanocomplexes can be formed from WPI with good cytotoxic effect to tumer cells using cis-vaccenic and linolenic fatty acids comparable to oleic acid. It was a new interesting observation being that the nanocomplexes formed of WPI with fatty acids has a comparable cytotoxcisty to that of a-LA and ß-lg and can be used in tumor therapy.

More information
Examination of Pesticide Residues in Wine, Beer and Their Constituent Products Using High-Throughput Techniques to Maximize Extraction & Efficiency
Patricia Atkins, Matt Snyder

In this study, commercial red wine and beer samples were examined for their pesticide concentrations.

More information
MS Data Processing With Full Flexibility Of Universal Processing Software
Frans Schoutsen, Barbara van Cann, Vincent Jespers, Michal Godula

Liquid Chromatography (LC) in combination with triple quadrupole Mass Spectrometry (MS) is more and more a common analysis technique in routine laboratories. Especially when using MS/MS selected reaction monitoring (SRM) for a large number of components data handling can be a bottle neck. This poster will show MS data processing of pesticides in water samples using an already established chromatography data system which is now also capable of processing large quantities of MS data.

More information
Analysis of Dithiocarbamate Pesticides by GC-MS
Soma Dasgupta1,2, Sumaiyya Mujawar1, Kaushik Banerjee1, Hans-Joachim Huebschmann3, Paul Silcock4

Analysis of dithiocarbamate pesticides (DTCs) using an optimized GC-MS method is described. DTCs are not stable and cannot be extracted or analyzed directly. The purpose of this work was develop a reliable method for identification and quantification of residues.

More information
<< 1 2 3 4 5 6 7 >>
Showing Results 21 - 30 of 118
Scientific News
Turkeys may be Lifesavers
Antibiotic to target staph infections, strep, comes from good bacteria in turkeys.
Did You Hear The One About The Two Businessmen On A Plane?
EquipNet’s vision ‘to revolutionize the way companies manage their surplus assets’ was first conceived at 30,000 feet somewhere between Chicago and Boston in 1999. Here we learn more about the company's first 15 years.
Proteomics for Systems Toxicology
MS-based proteomics is maturing into a robust technology for the measurement of proteome-wide exposure effects.
Charge-Tagged Proline-Based Organocatalyst for Mechanistic Studies Using ESI-MS
In a comparative continous flow ESI-MS study, researchers use a new charged catalyst and neutral L-proline to investigate the proline-catalyzed inverse crossed aldol reaction of aldehydes with diethyl ketomalonate.
Could Non-gluten Proteins Play a Role in Celiac Disease?
Scientists are reporting in ACS’ Journal of Proteome Research that people with the disease also have reactions to non-gluten wheat proteins.
Mass Spec Sample Prep Cut From Days to Minutes
The method, developed by Livermore scientists, accommodates liquid samples and bypasses the graphitization process, enabling sample preparation and analysis in minutes.
LLNL, UC Davis Partner to Personalize Cancer Medications
With a $7.8 million, five-year grant from the NIH researchers are utilizing accelerator mass spectrometry for cancer research.
Novel Solutions to Fight the Obesity Gene
Potent inhibitors a potential new class of anti-obesity drugs that target one of the most common genetic causes of obesity.
New Technique Yields Drug, Biomedical Test Results in One Minute
Slug flow microextraction makes it possible to quickly detect the presence of drugs or to monitor certain medical conditions using only a single drop of blood or urine.
Detecting Pharmaceutical and Personal Care Products in Water
A simple, more convenient method than conventional guidelines.
Scroll Up
Scroll Down
SELECTBIO
SELECTBIO Market Reports
LabTube - Videos for the Scientific Community
eposters - The Online Journal of Scientific Posters
Follow TechNetcom1 on Twitter
Technology Networks Ltd. on LinkedIn