sodium analyzer Articles

  • Indirect anodic oxidation applied for treatment of simulated wastewater containing Cationic Red X-GRL and Disperse Red 3B

    The treatment of simulated wastewater containing Cationic Red X-GRL (X-GRL) or Disperse Red 3B (DR-3B) dye was carried out by indirect anodic oxidation, using Ti/SnO2 electrodes as the anode. The influences of pH value, voltage, electrolysis time and sodium chloride dosage on the degradation performance were studied by single factor experiment. Furthermore the nitrogen states and UV-Vis ...


    By IWA Publishing

  • Well Water Treatment Systems

    Well Water Treatment Systems | Industrial & Commercial Well water treatment systems are used to purify water and eliminate impurities from all types of well water (dug wells - driven wells - drilled wells). To have the right and the most efficient well water treatment system, you need to correctly analyze the well water chemistry and to have a fundamental understanding of how ...


    By Pure Aqua, Inc.

  • Kinetic and equilibrium profile of the adsorptive removal of Acid Red 17 dye by surfactant-modified fuller's earth

    In the present study, fuller's earth (FE) was modified with sodium dodecyl sulfate for removal of Acid Red 17 (AR 17) dye from aqueous solutions. The surfactant-modified FE and FE were characterized by a Fourier transform infrared spectrometer, thermogravimetric analyzer and scanning electron microscope. Batch adsorption experiments were carried out as a function of contact time, pH, initial ...


    By IWA Publishing

  • 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 ...


  • 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 chlorothalonil in celery

    MATRIX: Celery ANALYTE: Chlorothalonil RANGE OF DETECTION: 20 ppb to 1 ppm MATERIALS: Chlorothalonil RaPID AssayÒ Kit and Sample Diluent Reagents: acetone (pesticide grade), sodium chloride. Equipment: 250 mL polypropylene bottles, 15 mL polypropylene tubes, 13 x 100 mm glass test tubes, 50 mL precision pipet, ...


  • Kinetics and equilibrium adsorption study of p-nitrophenol onto activated carbon derived from walnut peel

    An original activated carbon prepared from walnut peel, which was activated by zinc chloride, was modified with ammonium hydroxide or sodium hydroxide in order to contrast the adsorption property of the three different activated carbons. The experiment used a static adsorption test for p-nitrophenol. The effects of parameters such as initial concentration, contact time and pH value on amount ...


    By IWA Publishing

  • 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, ...


  • 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 ...


  • Optimization analysis of separation conditions of washed water containing a lead complex and characterization of the precipitation products

    Presently, the large amount of industrial leaded wastewater creates a great challenge to both environmental governance and wastewater recycling. Lead complexes in washed water must be removed mostly before the washed water can be recycled. This paper reports the mechanism and factors of removing Pb complexes in simulated washed water by the sulfide precipitation method. The reaction time, ...


    By IWA Publishing

  • Performance analysis and experimental study on rainfall water purification with an extensive green roof matrix layer in Shanghai, China

    Current research has validated the purification of rainwater by a substrate layer of green roofs to some extent, though the effects of the substrate layer on rainwater purification have not been adequately quantified. The present study set up nine extensive green roof experiment combinations based on the current conditions of precipitation characteristics observed in Shanghai, China. Different ...


    By IWA Publishing

  • Waterborne exposure to microcystin‐lr causes thyroid hormone metabolism disturbances in juvenile chinese rare minnow (Gobiocypris rarus)

    Microcystin‐LR (MC‐LR) has the potential to disturb thyroid hormone (TH) homeostasis, but little is known of the underlying mechanisms of MC‐LR in fish. In the present study, juvenile Chinese rare minnows (Gobiocypris rarus) were exposed to various concentrations of MC‐LR (0, 50, 100, and 500 μg/L) for 7 d. The whole‐body content of THs, the histology of thyroid follicle epithelial cells, the ...


    By John Wiley & Sons, Ltd.

  • Removal of dissolved organic matter (DOM) from water with activated carbon and effective microorganisms

    Humic substances (HS) cause problems in water purification because of disinfection by-product (DBP) formation during chlorination. The efficiency of activated carbon (AC) adsorption as a method in drinking water treatment has been investigated in removing HS at different pH values (pH = 5; 6; 7; 8) in static equilibrium experiments. The degradation of HS was studied with an EM (effective ...


    By IWA Publishing

  • The removal of typical pollutants in secondary effluent by the combined process of powdered activated carbon–ultrafiltration

    This paper focused on the effects of powdered activated carbon (PAC) dosage on ultrafiltration (UF) membrane flux caused by natural organic matter (NOM). Three model foulants, humic acid (HA), bovine serum albumin (BSA) and sodium alginate (SA), were adopted to represent different NOM fractions in secondary effluent treated by the combined process of PAC-UF. Moreover, the membrane fouling ...


    By IWA Publishing

  • Microbiological quality of chlorinated water after storage in ceramic pots

    Household water treatment with sodium hypochlorite has been shown to reduce self-reported diarrheal disease in developing countries. Reported hypochlorite use, time since treatment, total chlorine residual (TCR), and E. coli concentration results from 589 household surveys in rural Kenya were analyzed to quantify the effect of exceeding recommended 24 hour post-treatment water storage time ...


    By IWA Publishing

  • Metal Status of Nairobi River Waters and Their Bioaccumulation in Labeo Cylindricus

    Abstract  This study focused on the analysis of metals in water and fish from Nairobi River. Water from Kikuyu, Kawangware, Chiromo, Eastleigh, Njiru and Fourteen Falls along the Nairobi River was analyzed for the presence of metals. Most of the metal levels in water were below the critical limit of World Health Organization and Kenya Bureau of Standards except for lead, chromium, iron and ...


  • Detection of carbendazim in soil

    MATRIX: Soil ANALYTE: Carbendazim, a metabolite of benomyl RANGE OF DETECTION: 37.5 to 750 ppb MATERIALS: Benomyl/Carbendazim RaPID Assay kit and Sample Diluent Reagents: methanol (pesticide grade), sodium hydroxide (ACS grade), distilled or deionized water. Equipment: reciprocating shaker, plastic bottles ...


  • Detection of pentachlorophenol in soil

    MATRIX: Soil ANALYTES: Pentachlorophenol (PCP) RANGE OF DETECTION: 100 ppb to 10 ppm MATERIALS: Pentachlorophenol RaPID AssayÒ kit and Sample Diluent Reagents: methanol (reagent grade), sodium hydroxide (ACS grade), distilled or deionized water. Equipment: reciprocating shaker, plastic bottles (polypropylene or ...


  • Evaporator Limits Boron to 5 PPM at award-winning chemical plant

    Problem: The biggest challenge confronting Rohm & Haas Corp. in building a wastewater plant for its chemical facility in Elma, Wash., was meeting Washington State Dept. of Ecology limitations on boron of 5 ppm. The Elma plant manufactures sodium borohydride, a versatile chemical used in a variety of applications ranging from the generation of sodium hydrosulfite for reductive bleaching of ...


    By Oil Skimmers, Inc.

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