Protea has deployed FTIR gas analysers in many projects requiring the monitoring of complex mixes of VOCs. In the chemical and pharmaceutical industry, scrubbers and carbon-bed abatement plants are typical installations where the use of Protea FTIR analysers and our chemometric expertise have proved valuable to plant operators. They prove an invaluable tool in process measurements and emissions monitoring. In the laboratory, Protea can deliver instruments with all the chemometric software and support to enable...
Hydrocarbons are a family of organic chemicals consisting of carbon and hydrogen atoms arranged in a variety of ways. Hydrocarbons are found naturally in crude oil and are released into the environment with its combustion (power plants, home heaters etc).
Environmental monitoring is becoming more important every day in local, national and international policies, showing the environmental awareness demanded by society.
This fact gives rise to an increase in the amount of legislation that obliges companies to law enforcement. Thus, the necessity of making more pollutants controls means high analysis expenses to the companies, which need to subcontract this service.
Although applications in this area advance, there is still a clear demand to get new portable and...
The principle cause of regional and urban haze, or visibility impairment, is light extinction caused by fine particles, sulfates, organic and elemental carbon, nitrates and crustal matter. Particles between 0.1 and one micrometers in size are most effective at scattering light, in addition to being of greatest concern for human health.
Fluorescence-based oil in water monitors from Turner Designs Hydrocarbon Instruments have been used extensively in industrial water processes for more than 20 years. These low maintenance fluorescence monitors have no significant measurement disturbance from water turbidity or naturally occurring organics in the water. Oil in water monitors can help detect and prevent major oil spills that may cause significant environmental damage and regulatory compliance infractions.
Turbidity in natural waters is recognized as an important indicator of its environmental health, and because it's a good surrogate for suspended sediment, monitoring turbidity has always been the "holy grail" for hydrologists. But because of earlier technology, "turbidity" has traditionally been a "bad word". The DTS-12 turbidity sensor is the first sensor to make turbidity monitoring practical, and no longer difficult, inaccurate, expensive, or labor-intensive.
Turbidity is the cloudiness or murkiness of water...
based in Victoria, BRITISH COLUMBIA (CANADA).
The industrial chimney's emissions of Volatile Organic Compounds (VOCs) are becoming issues of global importance and to have an accurate knowledge about how to test VOC turns into a strategic issue. VOC emissions are quantified and monitored according to standard EN 12619, using FID analyser which uses hydrogen and other reference gases in pressurized cylinder. Operators must then approach the sampling point, often placed several meters from the ground, climbing chimneys of industrial settlements with...
Over the past 20 years active fluorescence has been widely adopted by the scientific community, ecosystem managers and crop growers as a rapid and non-invasive method of estimating photosynthetic performance within a wide range of organisms, including phytoplankton (microalgae and cyanobacteria), biofilms, benthic autotrophs (corals, macroalgae and sea grasses) and terrestrial plants. The main rational for applying active fluorescence is that changes in key fluorescence parameters can reveal the early onset of...
Digital Pathology is an image-based information environment enabled by virtual microscopy. This involves imaging glass slides and saving and distributing their digital images for analysis, archiving and storage.
The virtual microscopy slides are:
•Scanned — using a microscope based scanning device that takes images of the whole slide via large scanning or stitching of smaller scans. This involves a motorized stage to scan the whole slide. Light source stability is important for scanning in order to prevent...
Pulse-Flow respirometers can be used to assess biomass activity for aerobic and anaerobic reactions. In aerobic tests, cultures are combined with nutrients, trace minerals, and an organic substrate – such as acetic acid or ethanol. The maximum oxygen uptake rate reflects the amount of active biomass in the test culture.
Naturally occurring organics in raw water are typically removed with chemicals. Total Organic Carbon (TOC) analyzers in the water treatment system can alert technicians when generic organic material is present but cannot differentiate between natural organics, such as algae or decomposed plant matter, and hydrocarbons. Using UV fluorescence technology, a properly configured TD-4100XD can alert operators to upsets caused by hydrocarbons such as gasoline, diesel, fuel oil, and crude oil.
Biodegradation tests involve testing samples in response to various parameters: dilution, nutrient addition, pH, temperature, and others. The pattern of oxygen uptake in aerobic tests; nitrogen gas production in anoxic denitrification tests; methane production in methanogenic tests; hydrogen production during glycolysis; and carbon dioxide production during fermentation reactions gives a measure of the rate and extent of biodegradation of the organic constituents of the test sample.
The method allows determination of water-soluble forms of inorganic (chlorides, sulfates, nitrates, fluorides and phosphates) and organics (acetates, formates, and oxalates) anions in soils, clays, peats, wastewater silts, activated sludges and bottom sediments by capillary electrophoresis method.
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).
Intrinsic kinetic tests involve adding relatively high concentrations of organic substrate to small concentration of acclimated microorganisms so that the COD/VSS ratio typically is greater than 10. Kinetic parameters are then determined by non-linear modeling using well-known relationships between biological growth and oxygen uptake.
Mercury, being widespread in environment, has toxic effect on a human organism even at a low concentration. Therefore, quantitativ e determination of mercury in vari ous environments is one of the most important environmental monitoring problems. The use of a mercury analyzer RA-915M/RA-915+/RA- 915Light with Zeeman background correction provides di rect real-time continuous determination of mercury in air from 0.5 ng/m 3 within the overall possible range of me rcury concentration in ambient air.
Ambient air pollution is a continuous problematic since many years, and the various organizations in charge of air quality monitoring work constantly on how to improve their structures and gain the most accurate and reliable data possible. Indeed, the changes in mentality and therefore in urbanism development for example, implies an access to the data faster and at multi-location level.
Air quality monitoring reference stations used nowadays measure with an extreme accuracy in located areas, but requires a lot of...
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...