toxicology laboratory Articles
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Blood Alcohol Determination with the New Teledyne Tekmar Versa Headspace Instrument
Introduction Recently, Teledyne Tekmar released the Versa, their latest innovative headspace instrument. Initially developed for the pharmaceutical industry to provide an economical headspace system for residual solvent analysis, the Versa can provide forensic/toxicology laboratories similar benefits. Blood alcohol analysis is one of a variety of headspace methods performed in ...
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Regulatory ecotoxicology testing in Canada – activities and influence of the Inter-Governmental Ecotoxicological Testing Group
The Inter-Governmental Ecotoxicological Testing Group (IGETG) is an ad hoc group of government scientists, technologists, data users, and scientific advisors that has been active in the development and application of ecotoxicological testing in Canada. Membership includes representatives from government laboratories that conduct toxicity testing for research and development purposes, monitor ...
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The common ecotoxicology laboratory strain of Hyalella azteca is genetically distinct from most wild strains sampled in eastern North America
The amphipod Hyalella azteca is commonly used as a model for determining safe concentrations of contaminants in freshwaters. We sequenced the mitochondrial cytochrome c oxidase subunit I (COI) gene for representatives of 38 populations of this species complex from US and Canadian toxicology research laboratories and eastern North American field sites to determine their genetic relationships. ...
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LabSource - Case Study
Name: Jennifer Jones Job Title: VP of Operations Company: LabSource Jennifer Jones, VP of operations Background LabSource LLC is a leading toxicology laboratory based in Greenfield, South Carolina, that offers contracted research services for healthcare providers in addiction & pain management, family practices, hospitals, OB-Gyn, primary care, recovery centers and more. Their ...
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Cylindrospermopsin determination in water by LC‐MS/MS: Optimization and validation of the method and application to real samples
A new method for determining dissolved cylindrospermopsin (CYN) in waters using solid‐phase extraction (SPE) with graphitized carbon cartridges and quantification by liquid chromatography coupled with tandem mass spectrometry (LC‐MS/MS) is described and discussed. The method has been suitably validated: the linear range covered is from 0.900 to 125 µg CYN/L. Limits of detection and quantification ...
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Stationary Spiraling Eddies and Self-Cleaning Processes in the White Sea in Presence of Climate Change and Their Relationship with Ecology of the Greenland Seal: Results of Airborne-Satellite-In Situ Study
Pollution of the marginal Arctic seas and rising of toxic contaminants are extremely dangerous for marine and coastal ecosystems and for marine mammals as representatives of a high level of fodder chains in the ocean. Ecology of ice-associated forms of marine mammals, population health and animal welfare are strongly depended from the different environmental processes and phenomena. Operational ...
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Toxicity Identification Evaluation (TIE) as a Tool for Water Quality Management
Whole effluent toxicity (WET) testing has evolved into a critical element of many National Pollutant Discharge Elimination System (NPDES) permits issued to both industrial and municipal dischargers. Over 6,500 dischargers to both fresh and salt waters are required to conduct toxicity tests to determine if their effluent might be potentially toxic to organisms in the receiving system. While ...
By AECOM
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Interactions between mercury and phytoplankton: Speciation, bioavailability and internal handling
In the present review, key interactions between Hg and phytoplankton are described and discussed in order to highlight the role of phytoplankton in the biogeochemical cycle of Hg and to understand direct or indirect Hg effects on them. Phytoplankton are exposed to various Hg species in surface waters. By Hg uptake, phytoplankton affect the concentration, speciation and fate of mercury in ...
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China in Talks to Join the OECD System for the Mutual Acceptance of Data in Assessment of Chemicals
It has recently been reported that China is in discussions with the Organization for Economic Cooperation and Development (OECD) to become a provisional adherent to the Mutual Acceptance of Data (MAD) system. This would require China to accept data from safety testing of chemicals from participating countries generated under the MAD conditions and to establish a Good Laboratory Practice (GLP) ...
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Comparative Risk Assessment
' Comparative risk assessment provides a systematic way to compare environmental problems that pose different types and degrees of health risk. It combines information on the inherent hazards of pollutants, exposure levels and population characteristics to predict the resulting health effects. Using data from available sources, rapid, inexpensive comparative risk assessments can identify the most ...
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