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Top Five Environmental Application Note Downloads this Month

SelectScience
24 Nov 2014
Lois Manton-O'Byrne, PhD
Executive Editor

Editorial article

Metagenomic Analysis of Environmental Water Samples with the NextSeq™ 500 System - Illumina
This application note describes how metagenomic sequencing was carried out, using the NextSeq 500 System, to characterize microbial communities in samples from a water reservoir.


The Accurate Measurement of Selenium in 12 Diverse Reference Materials Using Online Isotope Dilution with the 8800 Triple Quadrupole ICP-MS in MS/MS Mode - Agilent Technologies
This application note describes how the Agilent 8800 Triple Quadrupole ICP-MS has solved the problem of ultratrace Se measurement in variable high matrix samples.


Environmental Application Notebook: Quantitative MS - Waters
This application compendium demonstrates the suitability of Waters’ range of Xevo mass spectrometers for a number of environmental applications, including dioxin analysis, pesticides and pharmaceuticals in water samples.


Optimize ICP-MS and LC-MS/MS Environmental Analysis by Choosing the Right Source of High Purity Water - EMD Millipore
This application note highlights the importance of high purity water in environmental laboratories for measuring trace levels of elements by ICP-MS and very low levels of polar compounds (hormones, pesticides) by LC-MS/MS.


Laser/Desorption Ionization FT-ICR Mass Spectrometry as a Tool for Statistical Analysis of Crude Oils - Bruker
In this application note, laser/desorption ionization FT-ICR (LDI-FT-ICR) mass spectrometry measurements provide the reproducibility required for efficient principle component analysis (PCA) characterization of crude oils.

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Infrared / IR SpectroscopyInfrared (IR) spectroscopy measures the interaction of infrared light with a sample, including transmission, reflectance & absorbance, facilitating the identification of analytes. Equipment used for quantitative analysis includes Fourier-transform infrared (FTIR) spectrometers, infrared cameras, FTIR gas analyzers, as well as attenuated total reflectance (ATR) accessories and pellet or film presses. Find the best IR spectroscopy products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.LC-MSLC-MS (liquid chromatography-mass spectrometry) systems and equipment are used for separation and quantitative analysis of complex mixtures, combining liquid chromatography and mass spectrometry. Quantify proteins, contaminants, pesticides or screen for drug metabolites with a high level of sensitivity. LC-MS systems and equipment include reverse phase, normal phase and specialized columns integrated with various MS detectors such as time-of-flight (TOF), quadrupole, orbitrap or ion trap mass analyzers. LC-MS/MS instruments equipped with a qTOF or triple quadrupole analyzer give greater sensitivity and resolving power to your analysis. Find the best LC-MS equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Mass SpectrometryMass spectrometry (MS) is a powerful analytical technique used to identify and quantify molecules based on the mass-to-charge ratio of gas-phase ions. It provides detailed information about the structure, composition, and properties of compounds and is widely used across fields such as environmental monitoring, materials science, drug discovery and development, food and beverage testing, and wider chemical research. Key MS techniques include tandem mass spectrometry (MS/MS), liquid chromatography–mass spectrometry (LS-MS) and inductively coupled plasma (ICP-MS). Choosing from these wide range of techniques and technologies can be a daunting task, so keep up to date with scientific applications, performance expectations, and customer reviews here all in one place. Visit our product directory to receive quotes direct from the manufacturer. Next Generation SequencingNext-generation sequencing (NGS), also known as whole-genome sequencing, high-throughput sequencing and massive parallel sequencing, produces and analyses thousands to millions of nucleotide sequences at once. Sequencing systems operate via varying technologies depending on the manufacturer, including sequencing by synthesis, ligation, pyrosequencing, ion semiconductor and single-molecule real-time sequencing. For NGS, library preparation is paramount to successful sequencing. In this section, explore a range of library preparation kits, from targeted, amplicon-based or hybridization-based kits including epigenomic, transcriptomic and genomic workflows to fragmentation kits. Find the best next-generation sequencing products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Water PurificationThere are a number of water purification methods available to remove contamination from laboratory water. These systems include demineralization, reverse osmosis, filtration and ultrafiltration. A combination of methods is sometimes necessary to achieve purified water suitable for use in experiments.Ultrapure WaterUltrapure water is the highest purity water and contains the lowest levels of organic and inorganic contaminants, particulates and microorganisms.PesticidesPesticides are used to protect crops from diseases, pests and unwanted plants. They are classed as persistent organic pollutants (POPs) and can be harmful to humans. The Environmental Protection Agency (EPA) currently regulates the use of pesticides in the USA. Crude OilThe chemical evaluation of the complex combination of hydrocarbons and organometallic compounds found within crude oil. The results provide data on the chemical characteristics of a sample for petroleum testing laboratories.Water AnalysisAnalytical methods used to test the purity of drinking water include determining the level of contaminants abides to the level set by the Environmental Protection Agency (EPA).MetagenomicsEnvironmental AnalysisEnvironmental analysis describes a variety of tests that determine the effect of chemicals, processes and particulates such as persistent organic pollutants (POPs) have on the environment.DioxinsDioxins are a group of persistent environmental pollutants (POPs) that comprise of chlorinated organic chemicals. These airborne particles can deposit on plants or in water, and animals can accumulate these highly toxic molecules in their fat.PharmaceuticalsPharmaceuticals are medicinal drugs used in healthcare to diagnose, prevent, cure and treat illnesses. Pharmaceuticals that are excreted after use appear in wastewater and can have detrimental effects on the environment.

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