To estimate the effects of aerosols on health and climate, it is essential to know their chemical composition. Sampling is done using two different types of aerosol collector. The first type are filter collectors that are based on the deposition of suspended particles on surfaces; the second type are powerful aerosol collectors.
Cerex Monitoring Solutions manufactures UVDOAS analyzers for a variety of Benzene monitoring applications. As benzene specific single gas or multi-gas analyzers, our instruments are available with application specific detection ranges and fully configurable alarm functionality.
Airborne aldehydes and ketones are collected by passing air through a cartridge containing 2,4-dinitrophenylhydrazine (DNPH). Carbonyl compounds react with the DNPH to form hydrazones, which are immobilized on the cartridge. These compounds can be easily eluted from the cartridge with acetonitrile and analyzed by HPLC with UV detection. Traditionally, this analysis including the workup contains a series of manual steps, which can become time-consuming and could incur experimental error.
Automating the extraction...
The odor market usually asks a spot measurement using dynamic olfactometry. This method uses human nose to quantify odor as global fingerprint. Chromatotec has developed a new solution for continuous monitoring as a complementary solution to the human nose. The vigi e-nose analyzer allows to monitor sulfurs compounds with speciation in addition to total VOC and odor index. Correlation with human nose according to EN 13725 method are defined site per site.
It has been established that organic aerosol (OA) makes up for a major fraction of fine particulate matter in all region of the atmosphere. This fraction accounts approximately for half of the total PM2.5 dry mass.1,2 Primary OA is directly emitted in the troposphere from anthropological and natural sources whereas secondary OA (SOA) is formed in-situ in the atmosphere from the oxidation of biogenic or anthropogenic gas-phase precursors and subsequent partitioning of the less volatile products into the particle...
Climate change makes for more extreme weather. The main reasons for this are wind and precipitation.That is why an increasing number of meteorological and hydrological monitoring networks are coming together. Global coverage with hydro-meteorological measuring technology is varied. Very old and very modern (new) measuring networks are used for climate monitoring worldwide. And there are still large gaps, for example on the oceans.
This market is driven by law and legislations made in Europe and/or USA (US EPA). It deals with ambient air monitoring : analysis / calibration / automatic zero air in continuous 7 days a week. Ambient air monitoring: in France this service is controlled by associations that calculate the ATMO index. CHROMATOTEC instruments such as the BTX ,the Sulfur and the VOC analyzers can be a good complement of their analyzers such as O3, CO2, DUST… in the analysis of ambient air.
Many companies worry over the quality of emissions data reported to the EPA. CEMS Experts is a skilled and experienced company with over 20 years of proven and dependable service to provide you with a reliable solution to your Analyzer Management and Data Acquisition Software needs. We supply customized DAS solutions for all federal (EPA), state and local CEMS regulations, plus off-the-shelf products for process monitoring, ambient air testing, or any other application requiring fast, reliable data capture and...
The measurement of pollutants such as O3, NO, NO2, CO, SO2 and HC to ppb’s and ppm’s require very sensitive analysers. Over the time or according regulations and devices requirements, calibration operations are required for each measured compound. As low concentration gas standards are expensive, may be unstable or not storable, like for ozone, on-site reference gas generation with Sonimix calibrators reduce costs, logistics troubles and keep analysers performances at their higher level.
Hammam Industries & Co. Egypt & Middle East is Exclusive Rights of Licencee Manufacturer & Supplier of Original Equipment's & Spare Parts for CBI Group Equipment Supply & Maintenance or After Sales Service in Egypt.
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