sample preparation course Articles

  • PPCPs: Preparing for an uncertain regulatory future

    A recent study published in Environmental Pollution* identified 56 active pharmaceutical ingredients (APIs) in effluent samples from 50 large wastewater treatment plants across the U.S. Among the products found in samples were commonly prescribed anti-psychotic and antihypertensive drugs. As more studies continue to fuel public concerns over risks to public health and the environment, wastewater ...

  • Sample Handling Strategies for Accurate Lead-In-Soil Measurements in the Field and Laboratory

    ABSTRACT The inhomogenous lead-in-soil matrix can present serious obstacles to accurate sample collection and handling. In typical lead-in-soil measurement, particle size related errors in sampling and sample handling often exceed all other sources of error. The magnitude of error can vary widely depending on the particulate nature of the lead contaminant and the effectiveness of control ...

  • Low-Flow (Minimal Drawdown) Ground-Water Sampling Procedures

    Untitled Document Background The Regional Superfund Ground Water Forum is a group of ground-water ...


    By Solinst Canada Ltd.

  • Groundwater Monitoring Case Study

    Global has been contracted by the Michigan Department of Environmental Quality, Remediation and Redevelopment Division (MDEQ RRD) to conduct quarterly sampling at a former gas station and adjacent property located near a State of Michigan owned public assess site to Torch Lake. The purpose of the sampling is to assure that there are no impacts to the surface water located downgradient of the ...

  • Comparing Field Portable X-Ray Fluorescence (XRF) To Laboratory Analysis Of Heavy Metals In Soil

    ABSTRACT Field portable x-ray fluorescence (XRF) continues to gain acceptance as a complement to traditional laboratory testing of metal contaminated soil. The quality of data produced by field XRF varies with site conditions, soil composition, and sample preparation. Quality assurance protocols for the field method usually require that a number of field samples be split and sent to a ...

  • Hired metals analyser ensures remediation success

    Cognition Land and Water Ltd, a UK based remediation specialist, has hired a portable XRF metals analyser to improve the speed of remediation work at a project in London’s Kentish Town. The project had a major impact on local residents so timescales were extremely tight but Cognition’s Charlie Jarvis says “It would not have been possible to meet the deadline without the use of ...


    By Ashtead Technology Ltd

  • Analyzing sulfur in soil and sediment with handheld XRF

    Background Sulfur creates more than nasty odors. Exposure to low levels (0-10ppm) of hydrogen sulfide (H2S) causes irritation of eyes, nose, and throat; higher levels can cause headaches, dizziness, nausea and vomiting, coughing, and breathing difficulty. H2S and numerous other odor-causing compounds are generated as a result of organic material decomposition. In the case of the Muddy River in ...

  • Increased demand for XRF analyser hire

    Steve Drake, NDT Market Manager at Ashtead Technology believes that XRF is one of the most important technologies in the company’s fleet of NDT and environmental testing instruments. “With a small amount of training, almost anyone can implement detailed inspections in a wide variety of applications, and with most instruments being lightweight and robust, XRF analysers are among the ...


    By Ashtead Technology Ltd

  • Yes, You Can Pick the Right TLC Plate – Part I

    “I’d like a box of TLC plates, please.” Sounds innocent enough, right? But when you have more than 500 plate options, things get a whole lot trickier. How do you dig through the layers (pun intended) to get the plates you need? TLC plates come in lots of fun forms and sizes—at least we think they’re fun! You can differentiate TLC plates by: Adsorbent material ...


    By iChromatography/Analtech

  • Monitoring Environmental Quality

    ' In order to determine the effectiveness of actions to improve environmental quality it is necessary to be able to measure relevant environmental parameters at a level of detail which is accurate enough to distinguish the anticipated changes. However, the establishment and maintenance of monitoring systems is time-consuming and expensive and therefore the scale of such systems needs to be kept ...


    By The World Bank

  • Ground Zero Air Quality Has A Long Way To Go! A Summary of Air Quality Testing in Surrounding Buildings

    There are still a wide range of concerns about air quality in the vicinity of Ground Zero. Many commercial and residential spaces have yet to be re-occupied. In only a few cases has any sort of inspection or testing been done to determine if they are safe to occupy. The greatest concerns are asbestos and the very irritating concrete dust that spread throughout lower Manhattan during the collapse ...

  • Awareness of Fungi on Wood is Critical to Professionals

    Untitled Document Those who deal with indoor fungal contamination could benefit by understanding more about the biology of common types of fungi on wood and wood products. It may assist in identifying potential ...

  • Innovative approach to unforeseen site conditions – case study

    The Crater Resources Quarry 3 Remediation site was a former limestone quarry that was later used as a disposal site for Waste Ammonia Liquor (WAL) generated by the coke making facility at a steel mill. The WAL contained water, ammonia, and small amounts of various hydrocarbons formed during the coking process. Coking operations shut down by the mid 1980's and discharge into the quarry ceased. The ...

  • Asbestos in Buildings: Practical Guidelines for Building Owners

    Practical guidelines for building owners Overview Friable asbestos-containing materials are present in many public and commercial buildings, schools and factories built before the mid-70's. Regulations in Ontario and some other provinces require building owners and property managers to put in place asbestos control programs, once they are aware of the presence of friable asbestos-containing ...


  • Assessment of Environmental ‘Hot Spots’ in Iraq

    Untitled Document Executive summary Introduction In July 2004, the United Nations Environment Programme (UNEP) was awarded a ...


  • Analysing coloured smoke | Pearl or Quest?

    Coloured smoke consists of an aerosol of tiny particles which is combusted or vaporized. The particular pigment or dye of each colour affects the colour of the smoke. The mixture usually includes a cool-burning formula based on potassium chlorate oxidiser, dextrin or lactose as fuel. Then one or more dyes are introduced to account for around half of the mixture. A small amount of sodium ...


    By Specac Limited

  • `A pack in your pocket and a cigarette in your mouth`

    Not only did he smoke, but he was required to smoke - on the job. Jim McEvoy told this to Firm principal, Victoria Edises, twenty years ago, long before the secret documents of the tobacco industry had been made public.       Back then, when asbestos plaintiffs' attorneys were emboldened to sue tobacco companies, they were overwhelmed with motions, interrogatories and ...

  • Economic and Environmental Benefits Flow From Filtration Technology

    Crossflow filtration operations typically fall into one of four categories: microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), and hyperfiltration more commonly known as reverse osmosis (RO). The most common of the operations is reverse osmosis due to its ability to remove dissolved impurities including dissolved salts. Crossflow filtration machines typically include the membrane ...


  • Are you wasting the cashback potential of energy audits?

    If  the government offered your business £20 cashback on every £100 you spent on energy, you would probably head for the front of the queue.  Yet that's exactly the sort of money saving opportunity an energy audit can deliver. The Carbon Trust's analysis of a sample of recent ESOS energy savings opportunities ...


    By Inprova Energy

  • The Gasmet story from an academic idea to a global business

    In this article, Dr Petri Jaakkola, founder and Chairman of Gasmet Technologies Oy explains how an idea shared by a group of researchers at the University of Oulu in Finland, during the early 1970s, developed into one of the world’s leading gas monitoring instrumentation manufacturers. Early history – technology development At first, the Finnish researchers understood ...


    By Gasmet Technologies Oy

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