micro-combustion analyzer Articles

  • Passive Seismic

    Passive seismic exploration methodology, in particular the IPSS/IPDS (Infrasonic Passive Seismic Spectroscopy/ Infrasonic Passive Differential Spectroscopy ) and PST/MST (Passive Seismic Tomography/Micro Seismic Tomography) technique uses spectroscopic and time analysis of the seismic background noise acquired passively using high sensitivity VBB (Very Broad Band) 3D seismometers.  Passive ...

  • Translating human right to water and sanitation into reality: a practical framework for analysis

    The human right to water and sanitation has been most commonly approached from the perspective of legal machinery and mechanisms for its implementation. Perhaps an underlying assumption among human rights practitioners is that once action for implementing the right is undertaken, its realization will be achieved. Often ignored are factors and processes at the micro-level where action for ...


    By IWA Publishing

  • Thank You All for the Success of MEXA-7000

    The MEXA-ONE, our new Motor Exhaust Gas Analyzer launched in 2012, has become our core product superseding the MEXA-7000 with a surge in the number of shipments since the beginning of 2014. The MEXA-7000 had evolved continually over the nineteen years since its introduction in 1995 to respond to the significant changes that took place in emission regulations, types of fuel and new technology in ...


    By HORIBA Europe GmbH

  • Determination of Ultra-Trace Mercury Vapor Levels from Industrial & Military Metal Components

    For many years, scrap metal reclaimers did not separate the materials containing mercury from other metals. Such things as mercury switches, dental amalgam, thermometers, and refining wastes from copper, gold and silver were processed along with the typical industrial metals. The result is that a significant portion of the Ferrous and non-Ferrous metals and alloys used today contain some metallic ...


    By Buck Scientific Inc

  • Characterization of Polymer Carbon Sieves, Graphitized Polymer Carbons and Graphitized Carbon Blacks for Sample Preparation Applications

    The use of carbons in sample preparation techniques such as solid phase extraction (SPE) and air sampling has been ongoing for several decades. Recent advancements in sample preparation techniques have led to the use of carbons in micro-SPE (i.e., pipette tips packed with particles), solid phase microextraction (SPME) techniques and carbon coatings for both gas and liquid sample preparation ...


    By MilliporeSigma

  • Electrochemical degradation of 2,5-dichloro-1,4-phenylenediamine by anodic oxidation

    Electrochemical degradation of 2,5-dichloro-1,4-phenylenediamine (DP) in aqueous solution by anodic oxidation was investigated. Linear sweep voltammograms and cyclic voltammograms were studied. The influence of operating parameters on electrochemical oxidation of DP was studied as a function of the current density, initial pH, and initial concentration of DP. The degradation kinetics analysis ...


    By IWA Publishing

  • Plastic Housewraps (Air Barriers) a Life Cycle Analysis of Their Environmental Benefits

    The use of air barriers in the construction of residential housing in North America has increased markedly during the last decade. The most commonly used air barriers have been particular plastic materials applied to the exterior of a home behind the finishing of brick or siding. The paper analyses, using life cycle techniques, the conservation of energy resulting from the use of these barriers ...


  • Ammonium, nitrate, and total nitrogen determination in fly ash

    Fly ash is a by-product of the combustion of pulverized coal and is composed of small particles. The composition of the fly ash may vary considerably, however, all fly ashes contain substantial amounts of silicon dioxide (SiO2), aluminum oxide (Al2O3) and calcium oxide (CaO). Nowadays, air pollution control standards require a separation of flue gas before being released to the atmosphere. Fly ...


    By BÜCHI Labortechnik AG

  • Feed Forward Control

    The Customer The Company is a world leader in the development and production of herbicides, fungicides, and insecticides for the professional agricultural, commercial and consumer turf and ornamental markets. The Process Their manufacturing operations are anchored by large-scale chemical synthesis and their production is achieved through highly ...

  • Source contributions and spatiotemporal characteristics of PAHs in sediments: Using three‐way source apportionment approach

    PAHs were measured in sediments from 29 sites throughout Taihu Lake in China during two seasons, to investigate spatiotemporal characteristics and source contributions using three‐way source apportionment approach (PMF3). Seasonal and spatial variations of levels and toxicity suggested higher individual carcinogenic PAHs concentrations and toxic equivalent quantity (TEQ) in flooding season. ...


    By John Wiley & Sons, Ltd.

  • Complete online monitoring solution for Waste Water Treatment Plant

    Due to the increasing number of requests for the monitoring of waste water treatment plant atmosphere, Chromatotec® has designed a specific analytical solution for sulfur and nitrogen compounds analysis. For more than 25 years, Chromatotec® has proven its value and expertise in measuring and recording sulfur concentrations in waste water treatment plant. Chromatotec® has completed its ...


    By Chromatotec Group

  • Natural Gas Processing Case Study

    The Customer The Company is an exploration and production company that builds natural gas reserves through the acquisition and development of oil and gas assets across the U.S. They are one of the largest producers of natural gas in the Nation. The Process The Company uses multiple scrubbers to clean out the impurities of the natural gas that they ...

  • Large Volume Splitless Injection Using an Unmodified Split/Splitless Inlet and GC-TOFMS for Pesticides and Brominated Flame Retardants

    Abstract Large volume splitless injection for gas chromatography typically requires a special injection port, for example, a programmable temperature vaporizer (PTV), but an alternative setup using concurrent solvent recondensation–large volume splitless injection (CSR-LVSI) and a split/splitless injection port has been reported. This technique was used here, both with and without ...


    By Restek Corporation

  • Effects of 17β-estradiol on typical greenhouse gas emissions in aquatic anaerobic ecosystem

    Anaerobic microecosystems designed with different concentrations of 17β-estradiol (17β-E2) (0.0–10,000.0 ng/L) were simulated in this study. The influence of different concentrations of 17β-E2 on the emissions of typical greenhouse gases (CH4 and CO2) in simulated anaerobic microecosystems is analyzed to primarily explore the relationship between ...


    By IWA Publishing

  • Incremental sanitation improvement strategy: comparison of options for Hanoi, Vietnam

    Urban sanitation issues should be tackled strategically, and may be addressed effectively when sewerage development is pursued in conjunction with complementary sanitation measures. Five sanitation improvement scenarios employing sewerage, night-soil collection-and-treatment (NSCT) system, and/or septic-tank improvement by annual desludging were analyzed from the perspective of COD loads, total ...


    By IWA Publishing

  • Zero waste solutions, Slovakia

    When US Steel acquired the former East Slovakian Steelworks in Nov 2000, it initiated a program to clear the residual mill waste dump which had accumulated on site in previous years. US Steel intended to recover the metal from the iron-rich by-products, and also improve environmental performance. Harsco has a proven record of experience in recycling iron and steel making by-products. In Slovakia, ...


    By Harsco Metals & Minerals

  • Synergism of GUP and Boric Acid Characterized by Cone Calorimetry and Thermogravimetry

    Wood is treated with a new composite flame retardant, whose components guanyl urea phosphate (GUP) and boric acid (BA) impart flame retardance. The flame retarding behavior of these samples is measured by cone calorimeter. The thermal behavior of samples has been studied by differential thermogravimetry (DTG) and thermogravimetry (TG) in air. The activation energies for different stages of ...


    By SAGE Publications

  • Advances in flashpoint testing: economic impact

    Flashpoint testing is one of the oldest methods of the ASTM D02 Committee on Petroleum Products and Lubricants, which was formed in 1904. The most prevalent standards are ASTM D56 (Tag Method), D92 (Cleveland Method), and D93 (Pensky-Martens Method). These classical techniques, commonly referred to as open-cup and closedcup methods, share a common principle: A test flame is lowered into the ...

  • Detection of thiabendazole in grapefruit juice

    MATRIX: Grapefruit Juice ANALYTE: Thiabendazole (TBZ) RANGE OF DETECTION: 10 to 250 ppb MATERIALS: Benomyl/ Carbendazim RaPID AssayÒ Kit and Sample Diluent. TBZ Standards (0, 10, 50 and 250 ppb TBZ) prepared in Sample Diluent. Reagents: ethanol and ethyl acetate (pesticide grade), 2M ammonium chloride (53.5 g/L ...


  • Dual fuel turbocharged engine operated with exhaust gas recirculation

    Abstract With good combustion characteristics, hydrogen has been developing as a clean alternative fuel of engines. This study is to develop a diesel/hydrogen dual fuel engine. The hydrogen was added at inlet port in a 4-cylinder direct injection turbocharged diesel engine with an EGR (Exhaust Gas Recirculation) system to investigate engine performance and exhaust pollutant. The ...


    By ECO PHYSICS AG

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