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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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Relationships between Water Quality Constituents in the Delta and the Influence of Different Sources of Water
Richard A. Denton and Paul Hutton

Analysis of detailed grab sample data from San Francisco Bay and Delta and development of regression relationships between EC, TDS and water quality constituents such as chloride, bromide, sodium, calcium, sulfate, alkalinity and hardness. The relationships in the interior Delta vary depending upon the percentage contributions from seawater, agricultural drainage and freshwater inflows.

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Flow Enhancement and Dynamic of Microfluidic Base Biosensor
Esmail Abdullah Mohammed Basheer, Hayder A.Abdul Bari

The design of new biosesnor base on microfluidic system is presented. The design is consist of two chips, Microchannels chip and electrodes chip. By varying the size and optimizing the microchannels and electrode, the sensitivity of the biosensor will increase.

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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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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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HOMOGENEOUS ADCs BEARING TWO DIFFERENT PAYLOADS SHOW STRONG SYNERGY IN TUMOR KILLING
Lisha Allen, Yi Mi, Muhammad Abbas, Wolfgang Richter, and Sean Hu

We presented a one-pot reaction to prepare site-specific ADCs using available mABs on hand without re-engineering. We have identified a novel non-cleavable linker, which increases not only ADC stability, but also potency. We also demonstrate synergy in cancer cell killing of hybrid ADC loaded with two different toxins

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Effect of exposure to stress conditions on propidium monoazide (PMA) - qPCR based enumeration of Campylobacter in broiler carcass rinses
A. Duarte1,2*, N. Botteldoorn2 ,W. Coucke2, S. Denayer2, K. Dierick2, and M. Uyttendaele1

Evaluation and comparison of a developed PMA-qPCR Campylobacter enumeration method with the reference method, after exposure of the broiler rinse artificially contaminated with the bacteria to stress conditions.

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Showing Results 101 - 110 of 1190
Scientific News
HIV can Spread Early, Evolve in Patients' Brains
Findings add urgency to screening, treatment - NIH-funded study.
Protein Shake-Up
Researchers use neutron scattering and supercomputing to study shape of a protein involved in cancer.
New Autism-Causing Genetic Variant Identified
Novel approach expected to be useful for other diseases too.
HBV Exposure Matures Infants’ Immune Systems
Findings presents a paradigm shift in the approach to treatment of patients with chronic hepatitis B.
Scientists Uncover Key Cellular Mechanism Involved in Neurodegeneration and Herpes
The discovery of a protein complex at the heart of cellular transport networks could have broad implications for disease research.
For Most Children with HIV and Low Immune Cell Count, Cells Rebound After Treatment
NIH-funded study finds T-cell level returns to normal with time.
Ebola Test Vaccines Appear Safe in Phase 2 Liberian Clinical Trial
Liberia-U.S. partnership planning Phase 3 trial and study of Ebola survivors.
Chemical Tag Marks Future microRNAs for Processing
New research reveals how cells sort out the loops meant to encode small RNAs.
Blood Test Could Help Bowel Cancer Patients Avoid Drug Side-Effects
Manchester researchers have provided early evidence to suggest that a blood test could be used to identify bowel cancer patients that may benefit from more intensive chemotherapy.
Study Announces a Durable Vaccine for Ebola
Researchers from Plymouth University have led team which has developed a durable vaccine for Ebola together with a disseminating vaccine strategy.
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