sodium analyzer Articles

  • Effect of sodium salt on anaerobic digestion of kitchen waste

    The effect of different sodium salt concentration on anaerobic digestion of kitchen waste was investigated. The methane production performance, the corresponding methane production model and sodium salt inhibition model were studied, and the degradation efficiency was analyzed. With the increase of sodium salt concentration, the methane yield and the maximal methane production rate decreased ...


    By IWA Publishing

  • Gamma radiolysis of ceftriaxone sodium for water treatment: assessments of the activity

    As large quantities of antibiotics have been misused in human and veterinary medicine, many different classes of antibiotics with low concentration have been detected in the environmental water. This existence may cause severe ecosystem alterations. Ceftriaxone sodium was employed as the targeted antibiotic to evaluate gamma radiolysis of antibiotics based on the primary elimination test and ...


    By IWA Publishing

  • Removal of copper ions from aqueous solution by the sodium salt of the maleic acid-allylpropionate-styrene terpolymer

    The sodium salt of the maleic acid-allylpropionate-styrene terpolymer was used for recovery of copper ions from aqueous solution. Effects of contact time, sorbent weight and initial Cu2+ ion concentrations on removal efficiency were tested. The maximum experimental sorption capacity of the sorbent for copper ions is 0.71 g g−1. The sorption isotherm of copper ions onto a prepared polymer ...


    By IWA Publishing

  • Efficient removal of Cu(II) and Pb(II) heavy metal ions from water samples using 2,4-dinitrophenylhydrazine loaded sodium dodecyl sulfate-coated magnetite nanoparticles

    This study reports on synthesis of a new nanoadsorbent for efficient Cu(II) and Pb(II) ions removal from water samples. In this regard, magnetite nanoparticles have been modified with 2,4-dinitrophenylhydrazine. The synthesized adsorbent has been fully characterized using scanning electron microscope, X-ray diffractometer, Fourier transform infrared spectrometer, and Brunauer, Emmett, and ...


    By IWA Publishing

  • Calibration stability of the sievers 900 series TOC analyzers

    Objective One of the advantages of the membrane conductivity measurement system employed in the Sievers 900 Series TOC Analyzers, compared to other TOC analyzers, is the excellent stability of the calibration. To illustrate this, a series of tests were conducted on three 900 Series analyzers over the course of a 14-month period and the results are  summarized in this report . The 900 ...


    By GE Analytical Instruments

  • Pasco County Uses Total Life Cycle Costing to Select Chloramination Analyzers

    Pasco County, Florida Water Utilities serves its customers with water from its 58 permitted wells blended with the water supplied by its large regional supplier, Tampa Bay Water. In 2002 Tampa Bay Water converted to monochloramine disinfection because of its advantages over free residual chlorine. Monochloramine is more stable and better extends the disinfectant residual throughout the ...

  • Analyze trace polar hydrocarbons more accurately and reliably with new alumina BOND/MAPD plot columns!

    Reproducible, predictable responses for reduced calibration frequency. Exceptional capacity which improves resolution and response. Highest temperature stability—application range extended to 250 °C. New Technology Improves Trace Analysis of Polar Hydrocarbons The chromatographic analysis of light hydrocarbons, ...


    By Restek Corporation

  • Nuclear reactor coolant removal monitored by hydrogen measurements provided by Systech`s 542 programmable gas analyzers

    NNC Limited is using Systech's 542 programmable gas analyzers to monitor hydrogen off-gas in test rig for Dounreay Fast Breeder Reactor decommissioning. Decommissioning nuclear reactors is not only a matter of dealing safely with the radioactivity issues, non-nuclear contamination can be equally difficult to remove safely and economically. NNC Limited is currently developing a system to remove ...


    By Systech Instruments Ltd

  • A multi-parameter analyzer helps a Kentucky treatment plant step up to the plate and meet a new phosphorus limit in its permit

    In 2001, the Lexington Fayette Urban County Government West Hickman Creek Wastewater Treatment Plant in Nicholasville, Ky., was starting Phase II of its third upgrade since 1972, when the state imposed a phosphorus limit. Total phosphorus hovered around 6 mg/l, but the permit required 1 mg/l monthly average and 2 mg/l daily maximum from May through October. Engineers from Tetra-Tech, the ...

  • Measurement of TOC in High-Salt Sample

    The quantity of organic matter in seawater is important in the research and monitoring of marine pollution as an indicator of organic pollution. The salt content in seawater is typically about 3.5 %, but using the Shimadzu total organic carbon analyzer, it is possible to measure the TOC directly without dilution or other pretreatment procedures. Here, we introduce an example of measurement of ...

  • Direct observations of membrane scale in membrane bioreactor for wastewater treatment application

    The formation of inorganic fouling on MF membrane was investigated in membrane bioreactor (MBR) treating industrial wastewater. Membrane autopsy works using microscopic techniques and surface analysis were carried out at the completion of pilot-scale operation to analyze foulant materials extensively. Scaling occurred on the membrane surface significantly in the MBR treating calcium-rich ...


    By IWA Publishing

  • Mechano-chemical ageing of PES/PVP ultrafiltration membranes used in drinking water production

    In water treatment by microfiltration and ultrafiltration, a major concern is the integrity loss or failure of membrane induced by onsite operations, potentially leading to permeate water contamination. This study aims to provide a better understanding of the phenomena responsible for membrane damage by analyzing its causes and effects. The role of sodium hypochlorite exposure conditions and the ...


    By IWA Publishing

  • Emulsion breakingtechniques for oil in water solvent extractions

    Certain types of samples, such as those containing detergent, may form emulsions when doing an oil in water extraction into a solvent. The boundary between the solvent and the sample will have an emulsion layer that lias a cloudy or milky appearance as shown in tlris photo. According to U.S. EPA Method 1664, "if the emulsion is greater than one-third the volume of the solvent layer. Hie ...


    By Spectro Scientific

  • Detection of carbendazim in tomatoes

    MATRIX: Tomatoes ANALYTE: Carbendazim, a metabolite of benomyl RANGE OF DETECTION: 25 to 500 ppb MATERIALS: Benomyl/Carbendazim RaPID AssayÒ Kit and Sample DiluentReagents: acetone (pesticide grade), sodium chloride Equipment: homogenizer or blender with acetone resistant container cup, 50 mL polypropylene ...


  • Emulsion-Breaking Techniques for Accurate Oil in Water Measurements

    A White Paper discusses emulsion-breaking techniques for ensuring accurate oil in water measurements. Certain water samples, such as those containing detergent, may form an emulsion when oil in water extraction into a solvent is done. In order to ensure an accurate measurement, the emulsion must be broken. Six techniques are described that can be used for reducing an emulsion ...


    By Spectro Scientific

  • 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 ...


  • Introduction to Ion Exchange Part 1

    IMPURITIES IN WATERWater is often referred to as the 'universal solvent' as it will dissolve small amounts of everything it touches. Water collects or dissolves a variety of mineral salts, organic compounds and suspended solids as it flows over the earth's surface and through the ground. These impurities make water undesirable for use in many applications. It is, therefore, important to ...


    By Kinetico Incorporated

  • Amino acid analysis matrix independent analysis of free amino acids

    Pickering Laboratories specializes in manufacturing of cationexchange columns and eluants for amino acid analysis. No other techniques have been shown to match the reproducibility and sensitivity of this post-column methodology. Advantages of this method, such as absence of matrix interferences, are especially important in analysis of native samples. Pickering provides several options for the ...


    By Pickering Laboratories, Inc.

  • Detection of carbendazim in celery

    MATRIX: Celery ANALYTE: Carbendazim, a metabolite of benomyl RANGE OF DETECTION: 25 to 500 ppb MATERIALS: Benomyl/Carbendazim RaPID AssayÒ kit and Sample Diluent Reagents: acetone (pesticide grade), sodium chloride. Equipment: blender with acetone resistant container cup, 50 mL polypropylene conical tubes, 15 ...


  • Detection of procymidone in grapes

    MATRIX: Grapes ANALYTE: Procymidone RANGE OF DETECTION: 0.4 to 20 ppm MATERIALS: Procymidone RaPID Assay Kit and Sample Diluent Reagents: acetone (pesticide grade), sodium chloride. Equipment: blender with acetone resistant container cup, 50 mL conical tubes, 15 mL polypropylene centrifuge tubes with screw caps, ...


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