sample preparation productivity Articles

  • Sample preparation for the analysis of matured timber

    The matured timber statute dedicates itself with the utilization and application of matured timber. A perfect assistant for the sample preparation are the FRITSCH Cutting Mills.  It especially includes rules concerning analysis for the examination of matured timber in regards to heavy metals (lead, cadmium, chromium etc.), arsenic, as well as PCP and PCB (pentachlorophenol and ...


    By Fritsch Milling and Sizing

  • The productive environmental laboratory: BSK Labs boosts efficiency with Metrohm IC

    BSK Labs runs a number of environmental laboratories and service centers along the west coast of the US. A total of 70 employees – including microbiologists, chemists, lab technicians, and support staff – make sure that the 200 to 350 samples that come in every week are analyzed. BSK Labs specializes in potable water chemistry, ground water monitoring, storm water runoff, solid waste ...


    By Metrohm AG

  • Sample preparation for the analysis of secondary fuel in cement plants

    Secondary fuel can be a very inhomogeneous sample, containing all types of polymers, paper, wood and low fractions of metal. Also recycled wood or parts of automobile tires might be used as secondary fuel. Before using it as fuel in the production of cement, several chemical analyses are necessary as quality control. Cement is made by heating limestone (calcium carbonate), with small quantities ...


    By Fritsch Milling and Sizing

  • Caltech working to solve the world`s energy problems with the help of inVia

    Fossil fuels are the world's main fuel source for transportation, heating and generating electricity. As a by-product, high levels of CO2 are released into the atmosphere. With the drive for sustainable energy production, a method that generates easily-stored fuel from sunlight—and absorbs CO2—is a very attractive proposition. The California Institute of Technology ...


    By Renishaw plc

  • Sample preparation and analytical techniques for determination of polyaromatic hydrocarbons in soils

    Polyaromatic Hydrocarbons (PAHs) have been determined in soil samples for many years. PAHs can arise in the environment from natural sources, oil and petroleum products and combustion processes. Although oil spills influence PAHS concentrations in local areas, the major sources of PAHS are anthropogenic and derived from land based combustion sources. PAHs are globally distributed and the highest ...

  • News on Air 2013, Volume 1: Products for Sampling

    For decades, Sigma-Aldrich has been a key supplier of innovative & high technology air monitoring products for various areas of gas/air sampling. Enclosed, you will find an overview on new and interesting devices to improve or simplify your air sampling. Supelco and Sigma-Aldrich offer a range of active and passive air sampling products, in addition to various analytical chemistry tools ...


    By Sigma-Aldrich Co., LLC

  • Dialysis with a semipermeable membrane – a new sample-preparation technique for determination of Polybrominated Diphenyl ethers in fatty matrices

    Summary Dialysis with a low-density polyethylene semipermeable membrane (SPM) is an efficient means of removal of lipids in the determination of bioaccumulative, persistent, halogenated organic compounds. In this study an SPM was used for preconcentration of polybrominated diphenyl ethers (PBDE) from food samples. The method is useful for determination of PBDE and other halogenated ...


    By Exposmeter AB

  • 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 ...

  • Method Scaling in Preparative HPLC: Analytical Method & Preparative Method

    VOC:  “I tried to scale up my analytical HPLC method to prep and it didn’t work.” Andy:  This is one of the most common things we hear from chemists wanting to do preparative chromatography. We also hear the following question pretty often too: VOC:  “I have a good analytical HPLC method, how do I scale it to ...


    By Waters Corporation

  • Leader in sample preparation systems benefits from Axetris MFCs’ high dynamic range - Case Study

    Split ratio flexibility of GC injector increased 30-fold A leading manufacturer of analytical sample preparation systems in gas chromatography (GC) switched to Axetris MFCs - and in doing so, simplified their product range, while offering their customers at least 30 times more flexibility in split ratio. The market-leading dynamic range of Axetris mass flow controllers (MFCs)—with ...


    By Axetris Ag

  • Preparing for EPA’s mandatory reporting of greenhouse gases rule

    Recent action by the US EPA to finalize the Mandatory Reporting of Greenhouse Gases (GHG) Rule means that environmental managers must now seriously examine whether they are fully prepared to address the imminent requirements. This article provides some assistance by summarizing key points regarding the final versus proposed rule, providing clarification on key questions that have arisen since the ...


    By Trinity Consultants

  • Low temperature preparation of NaTi2(PO4)3 by sol-gel method

    Bulk and nano sized rhombohedral NaTi2(PO4)3 belonging to NASICON family have been prepared by sol-gel method at low temperatures. The products are characterised by powder X-ray diffraction, Raman, SEM and TEM methods. The phase formation of NaTi2(PO4)3 was started at 550°C. The crystallite sizes of NaTi2(PO4)3 prepared at 550°C and 600°C were found to be 35 nm and 37 nm respectively. ...


    By Inderscience Publishers

  • Evaluation of Sample Pretreatment Procedures for the Determination of Phthalate Esters in Child Care Products and Children’s Toys by GCMS

    The Consumer Product Safety Improvement Act of 2008 (CPSIA-USA) requires testing of child care products and toys in the US for specific phthalate esters by GCMS. The CPSC test method specifies solvent extraction and subsequent GCMS analysis for specific phthalate esters. In this study, analysis by pyrolysis GCMS was investigated as a technique to simplify sample preparation and improve analytical ...

  • Preparation of <25x or >100x dilutions with the rapid prep universal range extension kit

    GENERAL COMMENTS: This procedure describes how to prepare dilutions of less than 25x or greater than 100x using the appropriate RaPID AssaysÒ Sample Diluent and components of the RaPID PrepÔ Universal Range Extension Kit. Preparing dilutions of 25x to 100x are already described in the package insert of the Universal Range Extension Kit. Serial dilutions using components of the ...


  • Erosion control performance of compost prepared from harvested aquatic weed

    A rainfall simulator was used to measure the ability of compost prepared from harvested aquatic weed (AWC) to reduce runoff and erosion from experimental plots compared with a bare earth control and commercially produced composted mulch and soil conditioners. A 1 in 10 year intensity rainfall event (67 mm hr-1) was applied to each plot for 30 min and runoff water was captured and water volume ...


    By BioCycle Magazine

  • ITRC technology overview of passive sampling technologies

    This document presents technical overviews of 12 passive sampling technologies. It describes each technology’s basis of operation, intended applications, advantages, limitations, and development status. Contacts for additional information are provided. This overview is an outgrowth of interest and information generated in preparation of the ITRC Technical and Regulatory Guidance for Using ...


    By EON Products Inc.

  • Analysis of biogenic amines food and physiological samples

    Histamine and other polyamines such as Putrescine, Cadaverine, Spermidine and Spermine are products of decomposition. The level of histamine, in particular, has been used as a regulatory guideline for degree of decomposition in fish. Also, Histamine and Tyramine levels are of interest to producers of wine and cheese. The polyamines, Spermidine, Spermine and Putrescine are elevated in neoplastic ...


    By Pickering Laboratories, Inc.

  • IML Production line

    We can offer you turnkey In Mold labeling system for other different products with different shapes. You can inform us for the below information to get your own particular  I.M.L solution : 1. your product 2D and 3D drawings or samples 2. your ...


    By Focare Mould Co.,Ltd.

  • Sampling guidelines for handheld Raman measurements; what you need to know

    In recent years. Raman spectroscopy has seen increased adoption as the technique of choice for the rapid identification of materials; especially for raw material identification in the pharmaceutical industry, identification of controlled substances and explosives for security applications, polymer material identification for packaging and plastics recycling, and mineral and gemstone ...


    By B&W Tek

  • Sampling and On-Site Analytical Methods for Volatiles in Soil and Groundwater - Field Guidance Manual

    Abstract: Volatile organic compounds (VOCs) are among the most frequently identified contaminants in soil and groundwater samples obtained during the investigation of suspected hazardous waste sites. Because some VOCs and their degradation products are potentially mutagenic, carcinogenic, or teratogenic, their concentrations in these two matrices are key factors in the risk assessment process. ...


    By QED Environmental Systems

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