Environmental Sampling Articles
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How Does Inverted Electrode Geometry Impact Ion Energy Analysis in Mass Spectrometry?
Right now, the market for mass spectrometry is on the rise. In fact, by the time we arrive in 2029, it is expected to be worth around $9.17 – $14.6 billion. Mass spectrometers examine ions and their mass through the use of magnetic fields and electric fields. By using mass spectrometry to undertake ion energy analysis, we can learn about ions and the different formations of molecules. ...
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Dynamic Light Scattering (DLS) for Protein Interaction Analysis
Introduction Protein-protein interactions are fundamental to many biological processes, including cellular signaling, enzymatic reactions, and immune responses. Understanding these interactions is crucial for unraveling the mechanisms underlying cellular functions and developing targeted therapies for diseases. Over the years, several techniques have been developed to study protein interactions, ...
By Profacgen
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Legionella Bacteria Water Sampling Methodology
This blog delves into systematic approaches for Legionella water testing, offering valuable insights into best practices and recommendations to ensure the safety of your ...
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Inside the Particulate Monitor – Filter Samplers
Some time ago, OPSIS published descriptions on how some well-established types of gas analysers work, namely those based on spectrometers, interferometers, and tuneable diode lasers. They all utilize absorption of light to determine the concentrations of gaseous pollutants such as nitrogen oxides (NOX), sulfur dioxide (SO2), hydrogen chloride (HCl), ammonia (NH3), and many more. The same ...
By OPSIS AB
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Everything About NDIR Sensors
A nondispersive infrared (NDIR) sensor serves as a gas sensor for detecting and quantifying gases in the atmosphere, along with their concentrations. NDIR sensors operate on the principle of molecules absorbing specific wavelengths of infrared light. Air samples are collected in a tube and subsequently analyzed under a source of light. NDIR gas sensors are known for their exceptional precision ...
By JXCT
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Marshall Iron and Metal BOS 200+ - Case Study
Marshall Iron & Metal in the City of Marshall, Michigan, operated as a railroad maintenance yard from 1899 to 1931 and a foundry from 1938 to 1960. Most recently, it served as an auto salvage/metal scrapyard from 1961 to 1996. Excavation and disposal of soil and debris were completed in the fall of 2015. During these activities, light non-aqueous phase liquid (LNAPL) was observed in an ...
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BOS 100 Takes on Carbon Tetrachloride at Oregon Site - Case Study
The subject property formerly operated as the Retail and Commercial Farm facility. The facility formerly stored and sold feed, farm equipment, and various farming chemicals (fertilizers, herbicides, and pesticides, etc.). In 2015, prior to the potential sale of the property, a Phase I Environmental Site Assessment (ESA) and subsequent Phase II ESA were undertaken. The Phase II ESA identified ...
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CAT 100 & BOS 100 Remediation at Northern European Active Industrial Site - Case Study
The subject site is a former dry cleaning facility in Northern Europe, where a large tetrachloroethylene (PCE) plume was impacting groundwater on and off-site. In 2017, CAT 100 and BOS 100® were applied as part of a large-scale remediation program. Currently, a 95% average reduction in PCE plume concentrations has been observed in the monitoring wells located in the areas targeted by the ...
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BOS 200, Hydrocarbons Application at an Active Gas Station - Case Study
Abstract: Trap and Treat® BOS 200® was applied at an active gas station in Europe with elevated dissolved phase contamination and NAPL impacts to protect the primary aquifer and cut off the dissolved phase plume from migrating off-site. Over the course of 4.5 years of monitoring, 92.4-99.9% reductions in Benzene were achieved in the treatment area (replaced) monitoring wells. Validation ...
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What is a three-dimensional geotechnical drainage net?
A three-dimensional geotechnical drainage net is made of high-density polyethylene. It is a material used in geotechnical engineering for drainage, filtration, and soil reinforcement. It is made from high-strength polymer materials that offer tensile strength, chemical resistance, and excellent drainage ...
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Trending Emissions Monitoring
Industrial emissions within the European Union are governed by the Industrial Emissions Directive, the IED. It is a framework directive largely relying on industry-specific reference documents on best available techniques, BREFs. The BREF for waste incinerators (WI) was revised during the 2010s and a new version became effective in December 2019. The expectations on industrial emissions control ...
By OPSIS AB
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Maximizing the Longevity of Your Portable FID - A Guide for Technicians
Understanding the Impact of Filters on Portable FIDs Filters are a key component in the efficient operation of portable FIDs (Flame Ionization Detectors). Their lifespan depends on usage hours and the environment, with water exposure being a critical factor. Technician diligence in maintaining these filters is crucial for the longevity of portable FIDs. Our portable FID filters feature a ...
By LDARtools
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Scanning Electron Microscope (SEM): A Powerful Tool for Unveiling the Microscopic World
The scanning electron microscope (SEM) allows us to observe the world in a level of detail that was previously unattainable. SEMs scan a sample's surface with a concentrated electron beam to create high-resolution images. SEM images can be used to examine a variety of materials, including biological tissues, metals, ceramics, and polymers. How does a scanning electron microscope work? A beam of ...
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Application of the Field Scale Test Protocol for Type I Sorbents Recovering Oil on Water
Abstract There presently exists no industry recognized test protocol for the evaluation of a sorbent product within a simulated environment fundamentally analogous to typical field conditions. Of particular note, existing standards do not offer a method for quantifying sorbent performance when deployed for the recovery of oil on water or evaluating sorbents at full or meso-scale size. While the ...
By OHMSETT
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How Much Headspace Do I Need?
When analyzing the residual oxygen content of a package, an important consideration is how much headspace, or available space in the package there is – not including your product. This is far more critical in a rigid package than it is in a flexible package, and here’s why: When analyzing a rigid package or container, the pressure of the inside of the package will decrease in direct ...
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Dust monitoring for turbocharger at sewage treatment plant - Case Study
Customer: WWTP in Tokyo, Japan Material: Sludge flue gas dust Installation point: After dust collector Function: dust monitoring ...
By ENVEA
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Guide to isothermal titration calorimetry
What is isothermal titration calorimetry? Isothermal titration calorimetry (ITC) is an experimental method used to measure the heat released or consumed in bimolecular chemical reactions. Chemical reactions can be exothermic or heat-consuming, depending on the relative energy stability of the reactants. Isothermal titration calorimetry can be used to quantify the magnitude of the heat change ...
By Profacgen
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HF Gas Analyzers: A Comprehensive Guide for Precise Hydrogen Fluoride Detection!
Welcome to an enlightening guide about HF Gas Analyzers. Here, crucial knowledge about hydrogen fluoride and its detection will unfold. Read on for valuable insights into this critical, science-backed ...
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Exploring the Crucial Role of Hydrogen in Steels
Hydrogen’s unique behaviour in metals, particularly in steels, plays a pivotal role in various scientific and industrial applications. Notably, hydrogen’s influence on phenomena like hydrogen embrittlement and tritium retention in fusion reactor wall tiles underscores the necessity for accurate and sensitive detection and analysis methods. To cater to this need, Hiden Analytical ...
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Emissions Monitoring through Long-term Sampling
Emissions monitoring is often carried out by continuously operating instruments providing measurement results in close-to real time. The data can then be averaged and compared to emission limits. Using this kind of instruments is not only a possibility but often a legislative requirement. This is often the case for many of the “usual suspects” such as NOX, SO2, CO, NH3, HCl, and dust, ...
By OPSIS AB
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