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Air Monitoring Applications

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    Formaldehyde and Acetaldehyde Determination in Air Using Fully Automated On-Line Desorption and Analysis of DNPH Cartridges

    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 of LpDNPH S10 cartridges and putting it in-line with the HPLC analysis will significantly reduce manual labor using this technique and this will improve reproducibility of the method by reducing potential experimental errors by the operator. The automation and unattended operation of the method leads to high throughput for determining airborne formaldehyde and acetaldehyde.

    By Merck KGaA, Darmstadt, Germany based in Darmstadt, GERMANY.

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    Capabilities of the Adsorbent Tube Injector System (ATIS™)

    The Adsorbent Tube Injector System (ATIS) was developed at Supelco® by R&D Scientists, as a tool to assist in our comprehensive adsorbent research for thermal desorption tubes. The ATIS provides an efficient means of transferring calibration standards in either the gas or liquid phase onto the adsorbent packed tubes. The ATIS employs the technique of flash vaporization to vaporize the sample in a continuous flow of inert gas; the inert gas carries the sample to the tube. The sample pathway of the ATIS is constructed of glass and stainless steel. The calibration standard is injected by a syringe through a replaceable septum in the center of the injection glassware, which is heated. After enough time has elapsed, typically less than five minutes, the tube is removed from the ATIS and analyzed using the appropriate analytical technique for that adsorbent tube.

    By Merck KGaA, Darmstadt, Germany based in Darmstadt, GERMANY.

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    radiello™ Passive Sampler as a Tool for the Measurement of Atmospheric Ammonia Concentrations and Dry Deposition

    The radiello ammonia sampler impregnated with phosphoric acid represents a low-cost, reliable and simple tool for assessing the atmospheric deposition of ammonia at parts per billion (ppb) concentration levels.

    By Merck KGaA, Darmstadt, Germany based in Darmstadt, GERMANY.

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    Air sampling & monitoring systems for defense/military sector

    From portable hand held battery operated to rugged field deployable, military organizations worldwide rely of HI-Q air sampling systems & accessories during research, development, test and evaluation (RDT&E) and for reliable protection of personnel from Nuclear Biological Chemical Threats. HI-Q’s emergency response air sampling kits have offered the Defense & Military Industries a way of recognizing, determining and identifying the presence of harmful Biological & Nuclear Threats.

    By HI-Q Environmental Products Company based in San Diego, CALIFORNIA (USA).

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    Monitoring solutions for the dust monitors areas

    For large combustion plants and power plants we offer the DCEM 2100 particulate monitor. This monitor is certified to EN 15267 part 3 QAL 1 for all industrial processes including waste incineration. It offers outputs in Transmission, Opacity and mg/m3 (when calibrated against a Standard Reference Method). The DCEM 2100 offers real-time zero and span calibration and an efficient air purge system to prevent optical contamination.

    By Codel International Ltd based in Bakewell, UNITED KINGDOM.

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    Waste water treatment plants Air quality control by TRS MEDOR Online Odor Monitoring

    ontext & Challenges Globally, the wastewater treatment is the first public health issue. Urban development leads to urbanization near waste water treatment plant and extension of sewerage network. These aspects induce to an augmentation of sulfur compounds (H2S, mercaptans and sulfides) which are very corrosive, odorant and toxic. To monitor this compounds online CHROMATOTEC® offers high meteorological solutions. Odors are very distinct air contaminants as they generate nuisances. The factors playing a role in the determination of odor annoyance are: odor concentration and intensity, frequency, appreciation, duration, synergy and location. CHROMATOTEC® proposes an automatic solution to well identify the origin and the level of odors.

    By Chromatotec Group based in Val de Virvée, FRANCE.

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    Low level measurement of VOCs and Terpenes close to the sea and the Landes Forest

    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 phase. The current number is that, on a global scale, SOA would represent around 60% of the overall OA.3 However, recent global mass-balance estimations for the removal of volatile organic compounds (VOC) suggest that this number could under-predicts SOA production.4 Recent field measurements in urban locations are also in support of a larger share, indicating that SOA is the dominant fraction of OA, with amounts considerably 20 greater than models predictions.

    By Chromatotec Group based in Val de Virvée, FRANCE.

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    Waste water treatment plants Air quality control by TRS MEDOR

    Context & Challenges Globally, the wastewater treatment is the first public health issue. Urban development leads to urbanization near waste water treatment plant and extension of sewerage network. These aspects induce to an augmentation of sulfur compounds (H2S, mercaptans and sulfides) which are very corrosive, odorant and toxic. To monitor this compounds online CHROMATOTEC® offers high meteorological solutions. At the entrance of the waste water plants, where the waste water arrives, strongly smelling and polluted air is captured and neutralised by a chemical cleaning process called ‘’Stripping’’. The correct amount of chemical products needed to neutralise the polluted air has to be calculated.

    By Chromatotec Group based in Val de Virvée, FRANCE.

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    Chemiluminescense based analyzer for industrial applications

    Focuses on medium NOx, NOx-related and multigas-concentrations up to 5’000 ppm where flexibility is a central requirement. Parameters included are NO, NO2, NOx, NH3, NOx-amines, O2 and CO2. Typical supported applications are industrial emission monitoring and gas manufacturing control.

    By ECO PHYSICS AG based in Duernten, SWITZERLAND.

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    Mining & minerals solutions for oil sands industry

    Oil and tar sands represent a vast wealth of energy reserves for the world rivaling traditional sources in quality, availability and the ability to meet the world`s needs for many years into the future. The technologies for extraction of this resource are increasingly efficient, and WesTech has worked with several companies on the leading edge of these efforts and is a ready partner for new projects and plant upgrades.

    By WesTech Engineering, Inc. based in Salt Lake City, UTAH (USA).

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    Gas monitoring for the manufacturing industry

    By Teledyne API based in San Diego, CALIFORNIA (USA).

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    Gas monitoring instruments and systems for print factories

    Typical modern printing processes utilize solvent-based dyes. The evaporation of the dye solvents into the ambient air during the printing process may expose the workers to various chemicals. Depending on the type of solvents in case, the solvents have different long term exposure limits, which should be obeyed. Component specific measurements are necessary to protect the workers from exposure while avoiding unnecessary interruptions to the printing process from false alarms.

    By Gasmet Technologies Oy based in Helsinki, FINLAND.

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    Air sampling & monitoring systems for government sector

    HI-Q serves the needs of various government agencies with a wide range of application-specific, customized air sampling products. HI-Q works directly with governmental agencies such as the Environmental Protection Agency (EPA), Department of Energy (DOE), Department of Defense (DOD) & Department of Homeland Security (DHS) to develop situation specific, cutting edge air sampling products to help recognize potential threats. Since September 11, 2001, HI-Q continues to have an ongoing relationship with the EPA & DHS by continually working on government-funded projects for the development of airborne biohazard collection systems.

    By HI-Q Environmental Products Company based in San Diego, CALIFORNIA (USA).

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    Gas monitoring instruments and systems for engine emissions measurements

    The exhaust gas from combustion engines is a complex mixture of gases and particulate matter. The composition of the gas may change rapidly. Multicomponent analysis of exhaust gases can be performed with a Gasmet™ FTIR Gas Analyzer with a response time (T90) of one second. The winning combination is the result using of a small volume gas sample cell, a powerful sample pump and a fast detector with liquid nitrogen cooling. The analyzer, sampling system and computer can be assembled on a cart for use in a dynamometer laboratory, or the portable version can be used for roadside tests.

    By Gasmet Technologies Oy based in Helsinki, FINLAND.

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    Air sampling & monitoring systems for universities, colleges & professional schools

    HI-Q realizes and supports the efforts of higher education with a variety of air sampling equipment, systems and accessories.  Many of instruments are used as teaching aids for future Health Physicists, Radiation Safety Officers, Industrial Hygienist, Environmental Engineers and other industrial disciplines.

    By HI-Q Environmental Products Company based in San Diego, CALIFORNIA (USA).

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    Air sampling & monitoring systems for occupational health & safety industry

    HI-Q considers the responsibility for worker health and safety to be of paramount importance. This is a responsibility that requires good documentation of facts. Many studies are conducted to evaluate workplace health and safety conditions as they relate to workers exposure to radiation, chemicals, and biological hazards during the normal work day. HI-Qs wide line of air sampling equipment, systems and accessories are used in the monitoring then documentation of these workplaces.

    By HI-Q Environmental Products Company based in San Diego, CALIFORNIA (USA).

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    Air sampling & monitoring systems for fire & police service

    Fire service and law enforcement workers frequently face unknown chemical and biological hazards. Internal emergency response personnel must assess the situation before committing a rescue or control team. Today, the Threat of biological agents is real. Accurate situation assessment is of paramount importance when responding to an emergency or control situation. HI-Q’s emergency response air sampling kits have offered Fire and Police emergency response teams a way of recognizing, determining and identifying the presence of harmful Biological & Nuclear Threats.

    By HI-Q Environmental Products Company based in San Diego, CALIFORNIA (USA).

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