Lab Reagents Articles

  • Analysis of Trace Elements in Water by EPA Method 200.8 using ICP Mass Spectrometry

    This application note describes the methodology and use of the Shimadzu ICPMS-2030 ICP mass spectrometer for the analysis of trace elements in drinking and fresh waters following the EPA 200.8 method. This method is also used for analysis of wastewater. In-line addition of internal standards to calibration and unknown samples was accomplished using the Shimadzu Internal Standard Addition ...

  • When Consumables Kits are Greater Than the Sum of their Parts

    ProteinWorks and GlycoWorks kits address more than sample prep challenges One of the most challenging parts of an LC-MS workflow happens before analytical chemists even turn to their instrument: Sample preparation. Get it right, and the analytical run performs as expected. Get it wrong, and the assay has any number of problems, from poor sensitivity to poor reproducibility. The ...


    By Waters Corporation

  • Distribution and extraction of chromium from phosphate ore

    Phosphate rocks are a vital and non-renewable resource which is crucial for agricultural uses. However, this raw material contains various contaminants such as Pb, Cr, Cu, Ni and Zn. Among these elements, chromium is considered as an essential micronutrient at low intake levels. Its occurrence in industrial products at higher concentration can cause a potential risk to plants, animals and ...


    By IWA Publishing

  • Safe use of microbubbles for removal of RO membrane fouling

    Abstract The authors have shown a dramatic improvement in cleaning efficiency when effervescent cleaning reagents are used in conjunction with bubbles created using a specially designed microbubble generator. One potential problem associated with this new technique is that the bubbles will cause damage to the delicate polyamide layer and other structures in the RO element. In order to ...

  • Hydrophobic aggregation of fine particles in high muddied coal slurry water

    The hydrophobic aggregation of fine particles in high muddied coal slurry water in the presence of four quaternary ammonium salts of 1231(dodecyl trimethyl ammonium chloride), 1431(tetradecyl trimethyl ammonium chloride), 1631(cetyl trimethyl ammonium chloride) and 1831(octadecyl trimethyl ammonium chloride) was investigated through the measurement of contact angles, zeta potentials, ...


    By IWA Publishing

  • Advanced oxidation processes for the treatment of chlorpyrifos, dimethoate and phorate in aqueous solution

    Photo-chemical-transformations of organophosphate pesticides, chlorpyrifos, dimethoate and phorate, using advanced oxidation processes (AOPs) namely UV photolysis, UV/H2O2, UV/Fenton and Fenton systems in aqueous solution were investigated in this work. A laboratory set-up was designed to evaluate and select the optimal oxidation process. Results show that addition of hydrogen ...


    By IWA Publishing

  • Comparison of the CMVX-7100 Micro-Volume Workstation

    Comparison of the CETAC MVX-7100 Micro-Volume Workstation with an Established Laboratory Method for the Assessment of Lead, Mercury, and Arsenic in Human Whole Blood. Conventional autosamplers used in clinical ICP-MS are largely based on the needs of non-clinical environments. Their disadvantages are numerous and include high ...


    By Teledyne CETAC Technologies

  • Treatment of oil–water emulsion from the machinery industry by Fenton's reagent

    An oil–water emulsion from the machinery industry was treated using Fenton's reagent. The objective was to reduce the high chemical oxygen demand (COD) of this waste stream so that it would meet the COD effluent limit of Chinese Standard JS-7740-95. The optimal [H2O2]/[Fe2+] ratio for COD removal was 3. An orthogonal experimental design was developed ...


    By IWA Publishing

  • Degradability of hexachlorocyclohexanes in water using ferrate (VI)

    Regarding environmental pollution, the greatest public and scientific concern is aimed at the pollutants listed under the Stockholm Convention. These pollutants are not only persistent but also highly toxic with a high bioaccumulation potential. One of these pollutants, γ-hexachlorocyclohexane (γ-HCH), has been widely used in agriculture, which has resulted in wide dispersion in ...


    By IWA Publishing

  • Proton-Transfer-Reaction Time-of-Flight Mass Spectrometry (PTR-TOFMS): Latest Improvements in Selectivity and Sensitivity

    Proton-Transfer-Reaction Mass Spectrometry (PTR-MS) is one of the most sensitive methods for real-time gas analysis. One limitation, however, is the lack of unambiguous compound identification, since only the m/z of an ion is acquired. We recently tested several approaches of increasing the selectivity via varying the reduced electric field strength (E/N) and switching the reagent ions between ...


    By Ionicon Analytik Ges.m.b.H.

  • A method of high sensitivity and in situ determination of trace cobalt(II) in water samples with salicyl fluorone

    Based on the sensitive reaction of Co(II) and salicyl fluorone with the presence of cetylpyridinium bromide in basic solution, a new method of flow injection micelle-solubilized spectrophotometry was developed for the determination of cobalt. The reaction was monitored for the absorbance of Co(II) at 540 nm. The reagents, flow injection variables and effects of foreign ions were investigated and ...


    By IWA Publishing

  • A new strategy for treating a cotton dyeing wastewater – integration of physical-chemical and advanced oxidation processes

    New strategies were herein applied for treating a cotton dyeing wastewater: coagulation/flocculation followed by Fenton’s oxidation – approach 1, Fenton process per se – approach 2, and Fenton followed by coagulation/flocculation – approach 3, aiming reducing chemicals consumption. Regarding the cost analysis, which is crucial for deciding on the best strategy to implement, it was found that ...


    By Inderscience Publishers

  • Vector Laboratories - Small Business Scheme - Case Study

    Operating in a competitive market dominated by larger companies, Vector Laboratories aims to 'punch above its weight’ and increase its market share. Central to this drive is their quality management system which has been certified to ISO 9001 since 2002. 1. QMS Implementation ...


    By LRQA Limited

  • Dispersed Phase Inertisation (DPI): A New Technology for the Treatment of Landfill Leachate and Complex Water

    Inertisation is thus far the only technology for the conversion of leachate and contaminated water into an inert product, thereby facilitating handling and disposal in MSW landfills. Introduction One of the most complex aspects of the global management of an MSW landfill or treatment plant is leachate. This liquid comes mainly from the degradation of organic matter, added to other ...


    By Energy & Waste S.l

  • Insitu mixing of dry and slurried reagents in soil and sludge using shallow soil mixing

    Introduction Recent implementation for the Federal Hazardous Waste Land Disposal Restrictions (LDR) to RCRA and USEPA's willingness to approve on-site treatment and/or containment has allowed in situ treatment methods to become viable options in site remediation. Shallow Soil Mixing (SSM) is one of several in situ mixing techniques now commercially available for use in on-site treatment of ...


    By Geo-Con, Inc.

  • Europe Endocrine Function Testing Market Next 5 year Forecast & Analysis

    ReportsnReports.com adds report 2014 Strategies for the European Endocrine Function Testing Market to its store. This new report provides a comprehensive analysis of the European endocrine function market, including emerging tests, technologies, instrumentation, sales forecasts by country, market shares and strategic profiles of leading suppliers. The report provides test volume and sales ...


  • News on Air 2013, Volume 3: Products for Analysis and Quantification

    Welcome to the third volume of our News On Air bulletin. This edition focuses on the often overlooked and neglected, but one of the most crucial steps in the analytical workflow: selecting the correct reagents and analytical reference materials for your application. In this edition, you can get tools to help you select applications for air sampling; find air and emmissions proficiency testing ...


    By Sigma-Aldrich Co., LLC

  • News on Air 2013, Volume 4: Labware and Reagents

    Welcome to volume 4 of our News on Air bulletin. This edition focusses on some of the labware and reagents that are used in this challenging area of analysis. Success in air monitoring quantitation requires that all the equipment and reagents used are inherently low in background concentrations, to prevent false positives. Commonly used materials may include: Filters, membranes, and ...


    By Sigma-Aldrich Co., LLC

  • UK Diagnostics Market Review and Outlook Report

    ReportsnReports.com adds report UK Diagnostics Market Review and Outlook to its store. This new report provides an overview of the UK diagnostic testing market, including sales and market shares of leading reagent and instrument suppliers, as well as test volume and sales forecasts for the following market segments: Blood Banking Cancer ...


  • Spain Diagnostics Market Review and Outlook Report

    ReportsnReports.com adds report Spain Diagnostics Market Review and Outlook to its store. This new report provides an overview of the Spanish diagnostic testing market, including sales and market shares of leading reagent and instrument suppliers, as well as test volume and sales forecasts for the following market segments: Blood Banking Cancer ...


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