environmental sample Articles

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Electronic Chain of Custody (COC) in Environmental Data Management using the LSPECS upgrade for ESdat

by Esdat Environmental Data Software  (Apr. 7, 2016)

Summary As electronic information can be easily altered, a chain of custody ensures that the data presented is "as originally acquired" and has not been tampered with during the copying process or during analysis. When using ESdat Environmental Data Management System, all data is tracked and backed up electronically; there is no scope for ...

Analysis of Highly Mineralized Aqueous Solutions by ICP-AES

by Shimadzu Scientific Instruments Inc  (Apr. 6, 2016)

Environmental Inductively Coupled Plasma (ICP) methods, such as EPA 200.7 or SW846 Method 6010, expect that samples will be fairly dilute without an overabundance of dissolved constituents (less than 2000 ppm Total Dissolved Solids). Laboratories running mine-impacted waters, such as acid rock drainage from exposed copper tailings, or mineral ...

Wastewater Monitoring in Akouedo/Abidjan, Cote d´ Ivoire with Gaiasafe Passive Collectors (PC)

by gaiasafe GmbH  (Apr. 25, 2016)

Abstract Contamination load and distribution of contaminants is shown. Gaiasafe Passive Collectors have been used successfully to determine single compounds out of the contamination load. Furthermore the spreading and biodegradation of contaminants was monitored over a large area in Abidjan. Only a few days after the dumping the chemical waste ...

Sustainable sampling of native bromeliads for environmental monitoring

by Inderscience Publishers  (Jun. 30, 2010)

By analysing the leaves of bromeliads, the availability of chemical elements in the atmosphere can be assessed. However, sampling steps affect the reliability of using such plants for environmental quality studies. This paper describes a novel and sustainable sampling methodology for conservation units, in which small discs (6 mm diameter) of ...

Concentration and solvent recovery of environmental samples in dichloromethane

by BÜCHI Labortechnik AG  (Feb. 2, 2015)

Environmental samples are usually extracted with an organic solvent which is then concentrated prior to final analysis. In this short note, initial conditions and evaporation settings for the parallel concentration of samples dissolved in dichloromethane (DCM) having different starting volumes are presented. These settings have been optimized for ...

Ambient Air Sampling Methods

by Perfect Pollucon Services  (May 3, 2015)

Pollutants are nothing but any substance that may present in an atmosphere in such a concentration that it may harmful to surrounding, living organism or human being. Sampling and analysis of air pollutants is known as Air quality monitoring and it is major part of environmental monitoring. There are many advanced types of ambient air ...

A new approach based on polynomial functions for measuring the acute toxicity of environmental samples

by Inderscience Publishers  (Jan. 30, 2007)

In this paper, a new mathematical approach for the estimation of acute toxicity in environmental samples is proposed. The concentration of pollutant or the amount of sample producing the inhibition of 50% of the living organisms used for the test (EC50) is determined by means of Polynomial Functions (PF) applied to the experimental x ...

A simple, efficient method for the separation of humic substances and DNA from environmental samples

by American Society for Microbiology  (Dec. 1, 1997)

Three different gels (Sepharose 4B, Sephadex G-200, and Sephadex G-50) were evaluated as a means of removing humic contaminants from DNA extracts of environmental samples. Sepharose 4B gave superior separation of DNA from humics, and DNA purified in this way showed consistently greater amplification than DNA purified by the other ...

Book Review: Fundamentals of Environmental Sampling and Analysis by Chunlong Zhang

by Inderscience Publishers  (Nov. 21, 2008)

Fundamentals of Environmental Sampling and Analysis, by Chunlong Zhang. New York, John Wiley and Sons, 2007. 436pp. ISBN 978-0-471-71097-4Keywords: book ...

Detection of Bacillus anthracis spores in postal and environmental samples in cases of suspected bioterrorism

by Inderscience Publishers  (Nov. 8, 2007)

From October 2001 to the end of 2004, a series of postal samples containing material suspected of containing Bacillus anthracis spores were examined. Environmental samples from dwelling places of some addressees and laboratory areas, including equipment, were also examined. Classical culture methods for isolation and identification were slightly ...

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