|Development of an Analytical Strategy for Simultaneous Determination of Multiple Contaminants in Paper Food Packaging|
Adam Vavrouš (1), Lukáš Vápenka (2), Kristina Kejlová (1), Jitka Sosnovcová (1), Dagmar Jírová (1)
We developed a method for simultaneous determination of polycyclic aromatic hydrocarbons, polyfluorinated compounds, ink photoinitiators, phthalates and bisphenols in paper food packaging employing GC–MS/MS and HPLC–MS/MS.
|METHOD DEVELOPMENT FOR THE SIMULTANEOUS DETERMINATION OF METHYLMERCURY AND INORGANIC MERCURY IN SEAFOOD|
Sergio Carneado, Ariane V. Zmozinski, Carmen Ibáñez-Palomino, Àngels Sahuquillo, José Fermín López-Sánchez, Márcia M. da Silva
This work reports the method development for the simultaneous determination of methylmercury (MeHg+) and inorganic mercury (iHg) species in seafood. The study focused on the extraction and quantification of MeHg+ by liquid chromatography coupled to on-line UV irradiation and cold vapour atomic fluorescence spectroscopy (LC-UV-HG-AFS), using HCl 4 mol L-1 as extractant agent.
|Comprehensive and Confident Identification of Narcotics, Steroids, and Pharamaceuticals in Urine|
David E. Alonso, Petra Gerhards, Charles Lyle, and Joe Binkley
-GC-HRT analysis provides an effectual “molecular profile” of samples
-Confident compound identification through spectral similarity searches & robust formula determinations for fragment, molecular and adduct ions
|Flash Pyrolysis Coupled to GCxGC-TOFMS and GC-High Resolution TOFMS for Characterization of Crude Oil and Petroleum Fractions|
Clecio F. Klitzke, Joe Binkley, Jeffrey Patrick
The pyrolysis of asphaltenes from discrete crude oil samples shows distinct composition in terms of light and heavy aromatic hydrocarbons and alkyldibenzo-thiophenes. The use of Py–GC×GC–TOFMS is crucial for the determination of isomeric composition, and Py–GC–HRTOFMS with high resolution and high mass accuracy complements the identification by unequivocal chemical formula assignments. The study of the relationships of the crude oil and asphaltene composition are in progress.
|Application of Central Composite Design (CCD) for the Optimization of Ultrasound-assisted Extraction (UAE) of Phenolics from Corn (Zea mays)|
Widiastuti Setyaningsih, 1,2 Erwan Duros, 3 Ceferino Carrera, 4 Miguel Palma, 2 Carmelo G. Barroso 2
A new Ultrasound-assisted Extraction (UAE) of phenolic compounds from corn (Zea mays) has been optimized by means of chemometrics tool. The proposed method was validated and successfully applied to the analysis of phenolics content in several corn cultivars.
|The Longest Way Round is the Shortest Way Home: HTS Assay Development for Complex Multi-domain Protein Kinases|
Doris Hafenbrandl, Vanessa Nardese, Maria Cristina Sidoli, Valeria Wanke, Mariantonietta Rubino and Daniele Carettoni
This study strongly supports the possibility to overcome the major bottlenecks in the production of long kinase recombinant forms, in order to perform drug discovery programmes with proteins more closely preserving the structural and functional properties of the native enzymes.
|Characterization of Proteins and Protein Self Association (Oligomerization) with SEC-MALS|
Michel Terray, Mark Pothecary
In this poster, a series of proteins and their oligomers were characterized using SEC-MALS with UV and RI detection. The monomer molecular weights are measured and compared with those from column calibration. The molecular weights of their oligomers are also compared with column calibration and the differences explored.
|Amino-Coated Metallofullerene Nanoparticles for Glioblastoma Mutiforme Tumor Detection|
Tinghui Li , Susan. Murphy, Kanwarpal Bakshi, Steven LaConte, Zhi Sheng, and Harry Dorn
We report the preparation of a new functionalized trimetallic nitride endohedral metallofullerene, with a cage surface consisting of positively charged amino groups, which is expected to bind more efficiently to negatively charged cell phospholipid bi-layer cellular surfaces and will more readily undergo endocytosis. We now report that this Gd-nanoplatform when subsequently conjugated with an IL-13 peptide, (IL-13-Gd3N@C80(OH)x(NH2)y) exhibits enhanced targeting of U-251 GBM cell lines.
|Significant Increase of Sensitivity on Rapid Influenza Antigen Assays Using Silver Amplification Immunochromatography.|
Satoshi KIMURA1), Hideyoshi OHTO2), Hayato YAMAGUCHI1), Seiji FUKUOKA1), Emiko NAKAMA1), Akiko TERADA3), and Yoh UMEDA2)
We have developed a new rapid bed-side assay system for in vitro diagnosis of infectious diseases, using “silver amplification method”, an application of photography-developing technology. The automatic analyzer brings results in fifteen minutes, enhancing sensitivity up to 1000 times compared to the conventional immunochromatography. We applied the technology for diagnosis of hospitalized children. The analyzer was useful for rapid and precise diagnosis of influenza A and B.