deionized water test Articles

  • The Desel System – Capacitive Deionization for The Removal of Ions From Water

    Capacitive deionization (CDI) represents a new approach to the treatment of a variety of water/wastewater streams contaminated with inorganic compounds. ENPAR Technologies Inc. of Canada has developed its DesEL System, which combines high water recoveries with high ion removal efficiencies. The system operates on the principle of capacitive deionization to remove ionic compounds referred to as ...

  • RO brine treatment and recovery by biological activated carbon and capacitive deionization process

    The generation of brine solutions from dense membrane (reverse osmosis, RO or nanofiltration, NF) water reclamation systems has been increasing worldwide, and the lack of cost effective disposal options is becoming a critical water resources management issue. In Singapore, NEWater is the product of a multiple barrier water reclamation process from secondary treated domestic effluent using ...


    By IWA Publishing

  • Detection of PCB in water using the ensys test kit

    MATRIX: Water ANALYTE: PCB LIMIT OF DETECTION: 1260: 50 ppb 1254: 50 ppb 1248: 100 ppb 1242: 200 ppb 1232: 400 ppb 1016: 400 ppb MATERIALS: Ensys PCB 12 Test Kit, item # 7020301. Ensys PCB Soil Extraction Kit #7020300EA. Clean tap or deionized water. Equipment: Ensys Field System ...


  • Analysis of PCB in water using the envirogard test system

    MATRIX: Water ANALYTE: PCB LIMIT OF DETECTION: Aroclor 1248: 1 ppm Aroclor 1260: 2 ppm Aroclor 1242: 2 ppm Aroclor 1254: 1.1 ppm BACKGROUND: This application describes a field screening method for determining PCB concentrations in water. A chemical reaction is induced that causes a color change ...


  • Detection of PAH IN WATER using the ensys test system

    MATRIX: Water ANALYTES: PAH LIMIT OF DETECTION: 15 ppb MATERIALS: Ensys PAH Risc Soil Test Kit. Methanol (ACS Reagent Grade). Deionized water. Equipment: Ensys Field Accessory System. SAMPLE PREPARATION/ANALYSIS: Follow procedures are outlined in the Ensys PAH Risc Test Kit User’s ...


  • A comparative study of detex RESI-CLEAN, a protein test and an ATP bioluminescence test for hygiene monitoring

    Purpose: The purpose of this study was to compare the performance of the Detex RESI-CLEAN swab test to two other hygiene monitoring products intended for similar use including the Celsis snapshot ATP bioluminescence test and the Biotrace® Protect™ protein detection test. Hygiene monitoring tests are used to determine the general cleanliness of a surface. A surface with food ...


  • Analysis of TNT AND RDX on gauze wipes using the ensys test system

    MATRIX: Gauze Wipe ANALYTE: TNT and RDX LIMIT OF DETECTION: TNT: 7 ug/100 cm2, RDX: 8 ug/100 cm2 BACKGROUND: This application describes a field screening method for determining TNT or RDX concentrations on gauze wipes. Acetone is used to extract the TNT or RDX from the gauze wipe and a chemical reaction is induced ...


  • Detecting Mercury in Water

    Determination of Mercury (Hg) in Water by Hand-Held, Portable Cold Vapor Atomic Fluorescence SpectrometryWater is the most familiar and most abundant compound on Earth, making up 71% of its surface area.[1]It is a vital component for all known forms of life and is the aquatic habitat for thousands of species of microalgae, fish and shellfish. [2] With the presence of running water in our ...


    By Arizona Instrument LLC

  • Detection of PPT levels of atrazine in drinking water

    MATRIX: Drinking Water ANALYTES: Atrazine LIMIT OF DETECTION: 5 ppt RANGE OF DETECTION: 5 to 500 ppt MATERIALS: Atrazine RaPID AssayÒ Kit and Sample Diluent Reagents: atrazine control (preparation described below), methanol and ethylacetate (pesticide grade) and distilled or deionized ...


  • Detection of alachlor and its sulfonic acid metabolite in water

    MATRIX: Groundwater, surface water and well water ANALYTES: Alachlor and its major soil metabolite, ethane sulfonic acid (ESA) LIMIT OF DETECTION: Alachlor: 5 ppt to 500 ppt (for 10 mL sample) 0.5 ppt to 50 ppt (for 100 mL sample) ESA: 30 ppt to 3 ppb (for 10 mL sample) 3 ppt to 300 ppt (for 100 mL sample) ...


  • Detection of part per trillion levels of 2,4-d in drinking water

    MATRIX: Drinking water ANALYTES: 2,4-D (2,4-dichlorophenoxyacetic acid) and related phenoxy acids LIMIT OF DETECTION: 70 ppt to 5 ppb (for 10 mL sample), 7 ppt to 0.5 ppb (for 100 mL sample) MATERIALS: 2,4-D RaPID AssayÒ Kit and Sample Diluent Reagents: 2,4-D control (preparation described below), methanol and ...


  • Virus removal efficiency of Cambodian ceramic pot water purifiers

    Virus removal efficiency is described for three types of silver-impregnated, ceramic water filters (CWFs) produced in Cambodia. The tests were completed using freshly scrubbed filters and de-ionized (DI) water as an evaluation of the removal efficiency of the virus in isolation with no other interacting water quality variables. Removal efficiencies between 0.21 and 0.45 log are evidenced, which ...


    By IWA Publishing

  • Removal of phosphorus from water by using volcanic ash soil (VAS): batch and column experiments

    Using low-cost and naturally available materials is considered an optimal adsorbent for removing phosphorus (P) from water due to its simplicity and economic efficiency. This study examined the removal of P from water using volcanic ash soil (VAS) by batch and column experiments. The maximum adsorption capacity of P was 2.94 mg g−1, estimated from the batch experiment according to a Langmuir ...


    By IWA Publishing

  • Detection of carbendazim in milk

    MATRIX: Milk, homogenized ANALYTE: Carbendazim, a metabolite of benomyl RANGE OF DETECTION: 5 to 100 ppb MATERIALS: Benomyl/Carbendazim RaPID AssayÒ Kit and Sample Diluent. Reagents: Methanol (pesticide grade), glacial acetic acid, distilled or deionized water. Equipment: 15 mL polypropylene centrifuge tubes ...


  • C18 extraction of atrazine for increased sensitivity in the RaPID Assay

    Performance of an increased sensitivity method utilizing an extraction and concentration step to increase analyte concentration of the assayed sample is presented. Recently, Shepard and Carr (1992) reported a method for increased detection of atrazine by gas chromatography using C18 solid-phase extraction (SPE) with a 10 mL water sample. An application with BakerbondÒ C18 SPE columns for ...


  • Immobilization of copper flotation waste using red mud and clinoptilolite

    The flash smelting process has been used in the copper industry for a number of years and has replaced most of the reverberatory applications, known as conventional copper smelting processes. Copper smelters produce large amounts of copper slag or copper flotation waste and the dumping of these quantities of copper slag causes economic, environmental and space problems. The aim of this study was ...


    By SAGE Publications

  • New gas calibration method eases TOC analysis

    LAR Process Analysers AG of Berlin,  Germany expanded the range of feaiures of its measuring device QuickTOC, which facilitates the monitoring of ultra pure and cooling water, boiler feed and condensate measurement, and industrial wastewaters. For many years, the Berlin company lias been developing, high quality measuring devices and processes for the TOC analysis of condensates and boiler ...


    By LAR Process Analysers AG

  • Procedure for calibration of micropipettors

    PURPOSE: Good Laboratory Practice dictates that all equipment used for the generation, measurement or assessment of data shall be adequately tested, calibrated and/or standardized. A procedure describing a pipettor calibration method, records of test performance and repairs should be available for laboratory personnel. This procedure describes a method for evaluating the accuracy and ...


  • Assessment of the use of red mud as a catalyst for photodegradation of bisphenol A in wastewater treatment

    This study aimed to investigate the use of red mud (RM) – a byproduct of aluminum production, as a photocatalyst, which was characterized physical-chemically and used in the photodegradation of the target compound bisphenol A (BPA). Chemical processing was performed in the RM (acid treatment, chemical reduction and calcination) to verify the most active catalyst. From the results obtained, a ...


    By IWA Publishing

  • Detection of atrazine, alachlor, cyanazine and metolachlor in corn

    MATRIX: Grain corn ANALYTES: Atrazine, Alachlor, Cyanazine, and Metolachlor RANGE OF DETECTION: Atrazine: 20-1000 ppb Alachlor: 20-1000 ppb Cyanazine: 20-600 ppb Metolachlor: 20-1000 ppb MATERIALS: RaPID Assay Kit and Sample Diluent Reagents: methanol (pesticide grade), distilled or deionized ...


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