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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.

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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.

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Analysis of Low Levels of Bisphenol A (BPA) in Canned Broths
Ken G. Espenschied, Michael Ye, Olga I. Shimelis, and Christine Dumas

Bisphenol A (BPA) is a primary monomer used in the manufacture of many plastics and epoxies. Some of these plastics are used as beverage containers and as liners and sealants for metal food containers. Because of BPA’s potential to act as an endocrine disrupter at low concentrations in humans, regulations have been enacted regarding BPA concentrations in food and beverages sold for human consumption.

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Fast and Efficient Analysis of Polynuclear Aromatic Hydrocarbons in Edible Oils Using Dual-Layer SPE
Christine Dumas and Katherine Stenerson

A new dual-layer cartridge for the efficient extraction of PAHs from edible oils

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Total Phenolics and Beta-1,3-Glucans Extracted from Medicinal Mushrooms (Ganoderma lucidum, Inonotus obliquus, and Phellinus linteus)
Jaecheol Kim, Kiuk Lee, Keum Taek Hwang(1), Gichun Yoo(2)

This study was to analyze the total phenolics, beta-glucans, and beta-1,3-glucans in water extracts of three medicinal mushrooms (Ganoderma lucidum(GL), Inonotus obliquus(IO), and Phellinus linteus(PL)) under different extraction conditions.

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Microextraction techniques combined with X-ray fluorescence spectrometry for determination of different metal ions in water
Karina Kocot (a), Beata Zawisza (a), Eva Marguí (b), Ignasi Queralt (c), Rafal Sitko (a)

In present work new preconcentration procedures combining microextraction techniques and X-ray fluorescence spectroscopy were developed. Proposed methodologies are promising tools for multielemental analysis enabling detection of natural pollutants in different water samples.

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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.

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Metabolism of Eight Model Pharmaceutical Compounds in Rat and Human HepatoPac Versus Liver Microsomes and Suspension Hepatocyte Platforms
Julius O. Enoru, William DeMaio, Adiba Watanyar, Kenneth Draper, Amanda Moore & Okey Ukairo

This poster presents our comparative metabolite profiling analysis of eight model pharmaceutical compounds with various biotransformation reactions using a functionally stable model of primary hepatocytes [micropatterned co-cultures (MPCCs)] in parallel with the traditional liver microsomal and suspension hepatocyte systems.

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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.

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Showing Results 21 - 30 of 145
Scientific News
Chemists Design a Quantum-Dot Spectrometer
New instrument is small enough to function within a smartphone, enabling portable light analysis.
Creating Bacterial ‘Fight Clubs’ to Discover New Drugs
Creating bacterial “fight clubs” is an effective way to find new drugs from natural sources.
Informatics Tool Helps Scientists Prioritize Protein Modification Research
Researchers have developed a new informatics technology that analyzes existing data repositories of protein modifications and 3D protein structures to help scientists identify and target research on "hotspots" most likely to be important for biological function.
Iron: A Biological Element?
Study shows findings which have meaning for fields as diverse as mining and the search for life in space.
New Tool on Horizon for Surgeons Treating Cancer Patients
Surgeons could know while their patients are still on the operating table if a tissue is cancerous, according to researchers.
The Perfect Partnership: Research & Industry; Software & Instrumentation. It really starts to come together at ASMS 2015
Collaboration and knowledge-sharing were evident everywhere: on the bus, in the hallways and in the bars. This article aims to capture this theme and share with you some of the fruits of this coming together of science and industry.
Weighing a Virus
Chemists, led by Mark Bier, have separated and weighed virus particles using mass spectrometry.
3D for Top-Down Proteomics: Extra Dimension for More Proteins
Researchers from the University of Wisconsin- Madison have tested the possible applications of adding a "third dimension" to chromatography.
Scientists Come Up with New Technique to Detect Alien Life on Mars
Researchers have provided evidence that combining chromatography/mass spectroscopy with Raman spectroscopy could improve astrobiological studies.
New Test Detects Drug Use From A Single Fingerprint
Research published in the journal Analyst has demonstrated a new, non-invasive test that can detect cocaine use through a simple fingerprint.
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