“Biogas” means a mixture of various types of gas (mostly methane) produced by bacterial fermentation in anaerobic conditions(absence of oxygen) of organic residues from waste, decaying plant, carcasses in putrescence. The analyzers of biogas by Infrared cells carry out the continuous analysis of CH4, O2, CO2, H2S and NH3. The whole process sees the decomposition of organic material by some types of bacteria, producing carbon dioxide, molecular hydrogen and methane(methane conversion of organic compounds...
Voltammetric determination of many heavy metals is also possible in municipal or industrial wastewater. On account of the usually high organic load the sample is usually mineralized by means of UV digestion.
Elemental analysis is a generic term for a group of applications which deal with the analysis of a variety of materials (chemicals, liquids, polymers, waste material, etc.) for their elemental or isotopic properties. Typical examples of elemental analysis techniques where mass flow control plays a key role are Total Organic Carbon (TOC) or Total Organic Halides (TOX).
Context & Challenges Volatile organic compounds (VOC) can be dissolved in water. Sometimes water is polluted and to study contamination of VOC in finished drinking water, VOC must be measured. Chromatotec® Solutions Chromatotec® has developed a specific system for the measurement of VOC in water: a Purge & Trap system, the airmoPURGE. The analyzer is coupled with a degasing system allowing the extraction of dissolved gases. The complete system is based on: - 502.2 method from US EPA –...
Biomaterials are those which interact with the native-tissue, organ or function in a body. Biomaterials have recently attracted a lot of attention due to the potential applications in replacing major components and systems in a living organism. Biomaterials have been widely used in dental, cardiovascular, cosmetic and orthopedic applications. XPS has been particularly useful in exploring the limits and possibilities of such novel devices and interfaces.
If you make a living on chemical reactions, you know that accurate moisture, solids and ash content control is critical to a successful reaction. Whether your product is organic or inorganic, flammable or flame-retardant, exotic or commoditized, Computrac has an instrument that will help you make your process more productive, more reliable, and more profitable. The Computrac line of instruments can provide primary measurements for solids content, ash content, total volatile content, and water-specific moisture...
Chemical Oxygen Demand (COD) is one of the most common integral indicators of anthropogenic pollution of water bodies. COD is widely used in the analysis of natural water, to control wastewater treatment from organic various substances.
The mercury concentration in crude oil and petroleum products can vary in a wide range of less than 0.1 ppb to dozens ppm. Direct mercury determination in crude oil and petroleum products at the range above 5 ppb is covered by ASTM D7622-10(2015) "Standard test method for total mercury in crude oil using combustion and direct cold vapor atomic absorption method with Zeeman background correction". Mercury determination in naphtha and light petroleum products (condensate, gasoline and diesel fuel) at a...
With over 15 years of experience in the measurement of volatile organic compounds (VOC), Environment SA announces the VOC72M, a new generation analyzer for the measurement of BTEX compounds by gas chromatography with photo-ionization detector (PID). The VOC72M can handle up to 40 compounds and eight configurations for analysis. This compact and fully automated analyzer with wide voltage range specifications (90-240V) provides equivalent performance to the laboratory chromatographs and is particularly suited to...
Chemical purity of water is assessed for a wide variety of different chemicals depending on the type of water and applicable local legislation.
Chemical analysis of water can include testing for nitrogen compounds, dissolved heavy metals, and total and dissolved organic carbon.
Common water monitoring applications include:
Determination of suspended solids in waterusing for example glass fiber filters.
Chemical analyses of for example heavy metals, dissolved organic carbons (DOC), and ions.
Oil analysis has long been practiced for aircraft engines and other airborne oil-wetted systems such as hydraulic systems and gear boxes in helicopters. Military organizations are perhaps the number one users of oil analysis testing and commercial aviation also has a long history of oil analysis. A number of airlines throughout the world do their own oil analysis, but in many cases they send samples to commercial oil laboratories. Engine manufacturers also do oil analysis as part of engine development...
Machine condition monitoring based on oil analysis has become an essential maintenance practice of military organizations throughout the world. An effective oil analysis program will keep important military assets such as planes, ships, tanks, trucks, and any other oil-wetted machinery in operation by reducing unexpected failures and costly unscheduled downtime. Mission readiness of military equipment is paramount, and proper maintenance can also decrease the long-term expense by minimizing replacement...
The ultra-fast analysis capabilities of IONICON PTR-TOF instruments are essential for eddy covariance flux measurements, allowing to study deposition and emission rates of biogenic volatile organic compounds (BVOCs).
The analysis of volatile organic compounds at low concentration levels is fundamental to pollution monitoring and control.
Hiden’s Hydramass spectrometer is a multi-stream gas analysis system for analysis of volatile organic compounds to the sub ppm level.
In sea water the analysis of volatile organic compounds is used for both pollution monitoring and ecological studies.
Hiden’s HPR 40 dissolved species analyser provides ppb sensitivity
Timely, objective healthcare and pharmaceutical market data, forecasts and analysis for medical equipment design, supply chain and environmental compliance. For decades, EHS and sustainability professionals at IHS have served all kinds and sizes of organizations, worldwide. We pioneered the development of many sustainability information management solutions and continue to lead the way with new innovations.
Chemical plants that produce high quantities of phenols (plastics, pesticides and pharmaceutical industries) and other aromatic organic compounds are excellent candidates for wastewater characterization via spectral analysis. Chemicals that contain conjugated double bonds absorb UV radiation remarkably well. The benefits include higher precision in process control as well as optimization of wastewater treatment.