gravimetric sample preparation Articles

  • Fe3O4-CS-L: a magnetic core-shell nano adsorbent for highly efficient methyl orange adsorption

    A novel core-shell bio-adsorbent was fabricated by using biological materials for removing methyl orange (MO) from aqueous solution. The structure characteristics results of scanning electron microscopy (SEM), Fourier transform infrared spectrometry (FT-IR), thermo-gravimetric analysis (TGA), vibrating sample magnetometer (VSM), and Brunauer–Emmett–Teller (BET) shows that Fe3O4-CS-L has ...


    By IWA Publishing

  • Matching Oil in Water Analyses with Regulatory Methods - Case study

    When analyzing oil and grease in water while out in the field, it is important to use an EPA approved method and equipment. While the amount of oil in water is highly regulated, it can also be a challenging measurement. It is complicated by the fact that oil conies in many forms and the measurement is defined by the particular regulatory method. When EPA 1664 is the regulatory method, ...


    By Spectro Scientific

  • Will your oil in water analysis method match the regulatory method?

    Anyone involved in field analysis of oil in water will continually get the question “Does your equipment match the regulatory method?” While the amount of oil in water is highly regulated -- it can also be a challenging measurement. It is complicated by the fact that oil comes in many forms and the measurement is defined by the particular regulatory method. When EPA 1664 is the ...


    By Spectro Scientific

  • Oil in Water Analysis Method Match Regulatory Method - Case study

    The analysis of oil in water is a worldwide problem that crosses many industries, analytical methods and regulatory agencies. For those in the petroleum industry, the offshore platform oil and grease limits for produced water can be quite different from the effluent coming out of the refinery. For the expanding hydraulic fracturing industry, oil in water limits are driven by whether the frac or ...


    By Spectro Scientific

  • The African crested rat’s poisonous hairs studied by attenuated total reflection infrared spectroscopy case study

    Introduction Plant toxins are commonly used by many invertebrates, as an effective defence against predation. However, such behaviour has recently been observed in a mammal.1 The African crested rat, Lophiomys imhausi, applies a potent toxin to the fur alongside its flanks. It acquires this toxin from Acokanthera schimperi,1 a shrub abundant in East Africa and dubbed the “poison arrow ...


    By Specac Limited

  • Minsur - Tin giant gets boost from TOMRA ore sorting technology - Case Study

    A plant for treating mined waste and low grade material at the world’s largest underground tin mine has repaid its capital cost of US$24 million in just four months, thanks in part to the role of a TOMRA X-ray transmission (XRT)-based ore sorting machine. The plant went into operation in 2016 and is projected to contribute 6,000 tonnes of refined tin to the ...


    By TOMRA Sorting GmbH.

  • Quit wasting time in wastewater filtration

    Susan takes pride in the work she does each day. After all, without her expertise in the lab, the plants and animals that live in and around her community’s waterways could suffer. ...


    By GE Healthcare Life Sciences

  • Factors Affecting Oil in Water Testing Methods

    Various factors need to be considered when comparing methods to measure oil and grease in water.  Whether you are trying to meet effluent limits for an NPDES (National Pollutant Discharge Elimination System) permit, comply with oil and grease limits for the Clean Water Act (CWA), or an industry satisfying a POTW’s (Publically Owned Treatment Works) discharge permit, it is ...


    By Spectro Scientific

  • Monitoring once through cooling water - Case study

    The Situation Power plants and paper mills use service water loops and mill water loops respectively for the cooling of lubricating, hydraulic, turbine and transformer oil.  These cooling systems feature large, recirculating volumes of water which are treated with biocides, dispersants, and corrosion inhibitors. By comparison, refineries often ...

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