water sampling laboratory Articles

  • 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

  • Case Study – Water Utility

    Sweetwater Authority, CA Sweetwater Authority’s mission is to provide its current and future customers with a safe, reliable and affordable water supply through the use of the best available technology, sound management practices, public participation and a balanced approach to human and environmental needs. Application Sweetwater regularly ...


    By Seveno Pty Ltd

  • Mineral water: a microbiological approach

    Total coliforms, Escherichia coli, Pseudomonas aeruginosa and high heterotrophic plate count were found in bottled mineral water. What may represent an important public health problem, because the presence of these microorganisms can be harmful to the health of the consumer, principally because some are opportunistic pathogens capable of causing infections in vulnerable individuals. Sales of ...


    By IWA Publishing

  • Water Quality Analysis Safeguarding Families

    Water is intensely purified and treated by water authorities before being ready for thousands of families. Everybody expects clean and safe tap water when turning on their taps. A water quality analysis center in Shanghi, China excels in its water testing and analysis with fully automatic potentiometric titration. Traditional Water Quality Analysis In order to ensure water hygiene and safety ...


    By Mettler - Toledo Int. Inc

  • Phosphorus control protects surface waters

    Phosphorus is the decisive factor for excessive algae and plant growth in water bodies, that’s why quality standards require reductions in the amount of phosphorus released from wastewater treatment plants into rivers and lakes. In recent years, the outlet limit values have not only been reduced on national levels. Depending on the vulnerability of ecosystems, especially low target values ...


    By Endress Hauser AG

  • Determining trace amounts of contaminants in water

    Introduction Pesticides, polychlorinated biphenyls (PCBs), and pharmaceuticals are a worldwide contamination problem. Several major US water bodies, such as the Hudson River, St. Lawrence River, Fox River and the Great Lakes have been contaminated with PCBs from industries discharging into these water bodies for decades. For example, from approximately 1947 to 1977, the General Electric ...


    By Horizon Technology, Inc.

  • Disposal of drainage water in fresh water of Sindh Province, Pakistan

    The mankind has been settling and hebetating their villages, towns and cities beside banks of rivers and natural or artificial streamline of water resources for many thousand years. In the initial era, people pass their lives in jungle and woods and they get food from raw material. But when they gradually thought to live together for passing social life, they knew that individual could not ...


  • Using Solid Phase Extraction for Determination of Contaminants in Water

    Pesticides, Polychlorinated Biphenyls (PCBs), andpharmaceuticalsare a worldwide contamination problem. Because these contaminates are long lived in the environment and bioaccumulate throughout the food chain a great deal of research and regulations has been implemented. Several major US water bodies such as the Hudson River, St. Lawrence River, Fox River and the Great Lakes have been contaminated ...


    By Horizon Technology, Inc.

  • Compost in the mix for storm water management

    Bioretention areas, also known as rain gardens, are increasingly being used to capture and treat storm water runoff from impervious surfaces such as roofs, sidewalks and parking lots. These landscaped areas often feature native plants installed in an engineered soil mixture that includes compost. “Bioretention areas or rain gardens are an attractive storm water Best Management Practice (BMP) ...


    By BioCycle Magazine

  • ANDalyze Case Study - Uranium in Ground Water

    Good Water Company (Testing Service) Groundwater samples were submitted by well owners from different regions of New Mexico (around Espanola region) in a water clinic sponsored by the Good Water Company. Problem/Task The groundwater in this region is contaminated with natural uranium, often above the EPA maximum contaminant level of 30 ppb uranium. ...


    By ANDalyze, Inc.

  • Advanced Water Quality Techniques Course

    Abstract:The development of a strategic water quality monitoring program is based on prioritizing risks to public safety and economic reality. The development of global standardized methods and protocols for automated water quality monitoring would facilitate international communication of water quality information and comparison of standardized methods and protocols. The three primary methods ...


  • 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 ...


  • LIMS Key to Quality Data Management in Water Industry

    WEFTEC  has just  wrapped up its 2012 conference – the largest meeting of its kind in North America.  The Water Environment Federations’ annual meeting has again delivered comprehensive water quality education and training to thousands of water quality professionals.  The leading discussions at WEFTEC ...

  • Oil Water Emulsion Wastewater Treatment

    Oil Water Emulsion Wastewater Treatment Industry Oil Recovery - Improved Efficiencies A refinery was having several upsets in their biological system due to high loadings of oils after pretreatment API separators and ...


    By Integrated Engineers Inc.

  • Ensuring safe drinking water case study

    Challenge: A state environmental agency contracted with Antea Group to assist in the execution of a state-wide clean drinking water program. Program objectives included the development of an efficient and standardized program to monitor for chemical and biological contaminants across more than 6,500 public water systems. ...


    By Antea Group - USA

  • Why is alkalinity an important parameter in environmental water analysis?

    Answer: Alkalinity is a measure of the acid-neutralizing or buffering capacity of a solution. The properties of water are is easily influenced by alkalinity, making it an important and widely used test. If any changes are made to a solution which could impact pH, alkalinity acts a buffer. This ability to neutralize acid (H+ ions) is what makes alkalinity so ...


    By Camlab Limited

  • Waters 2017 Food Testing Application Notes Booklet

    Abstract / Summary Waters is a leader in developing food and water quality testing systems that incorporate analytical standards and reagents, sample preparation products, chromatographic columns, instrumentation, and data management software. Our comprehensive solutions offer food and beverage laboratories the tools needed to check compliance with food and ...


    By Waters Corporation

  • Ultrapure Water for Determination of Toxic Elements in Environmental Analyses

    Abstract In this paper the importance of reagent water quality for toxic element environmental analyses is discussed, and the suitability of fresh ultrapure water produced using Merck water purification systems for ICP-OES and ICP-MS trace element analyses in environmental laboratories is demonstrated. Key words or phrases Trace elements, metals, toxic ...

  • 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

  • Quality Data Management: An Essential Component Of US Water Infrastructure

    The standards for environmental testing are more rigorous and far reaching than ever. At the same time, the U.S. water infrastructure has reached the age where replacement is critical. Laboratories and testing facilities trying to address both issues should consider implementing a Laboratory Information Management System (LIMS). A LIMS, which replaces paper-based systems, can increase sample ...

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