sample preparation equipment Articles

  • On the right track

    High-speed train manufacturer, CAF, rely on world-class beamforming technology to reduce the noise generated by their trains – helping to make high-speed trains a more viable option for travellers and operators alike. Because of its relatively low levels of CO2 emissions, train travel is considered one of the ...

  • Two Detector Solution to Analyzing Sulfur

    Sulfur compounds are reactive, corrosive to pipes, and destructive to catalysts in petroleum refineries. Sulfur emission are strictly regulated globally. When released into the atmosphere sulfur dioxide converts to sulfuric acid resulting in adverse effects on human health and the environment. Sulfur detection is found useful in many other industries; therefore, detection of sulfur compounds in ...


    By Restek Corporation

  • 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

  • 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

  • Will the equipment match the regulatory method?

    Anyone involved in field analysis of oil in water will con tinually get the question "Does your equipment match the regulatory method?" Zj 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 regulatory ...


    By Spectro Scientific

  • 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 ...


  • Preparation of thiabendazole standards for use in applications of the benomyl/carbendazim rapid assay

    GENERAL COMMENTS: This procedure describes the preparation of thiabendazole (TBZ) standards used in applications of the Benomyl/Carbendazim RaPID Assay. Standard concentrations of 10, 50 and 250 ng/mL (ppb) TBZ and a control concentration of 100 ppb TBZ are prepared by making appropriate dilutions of a concentrated TBZ solution in the Benomyl/Carbendazim Sample Diluent. The standards and ...


  • The 10 Key Factors in Selecting a Stack Sampling Firm

    Summary: This document is a summary of the key factors that you should take into consideration when hiring a stack testing firm.This has been prepared in conjunction with the ASTM criteria for standard practice of testing companies.The ASTM criteria has been supplemented, based on 125 years of direct testing experience, which is the combined years of experience of the individuals that contributed ...

  • 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

  • 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.

  • Simple Shear of an Undisturbed Soft Marine Clay in NGI and Torsional Shear Equipment

    A series of undrained, simple shear tests were performed on undisturbed, soft, marine clay from the continental slope of Israel in a direct simple shear device (NGI) and in a new torsional shear apparatus. The new apparatus is described, and the problematics of simple shear testing in both devices are discussed. Most previous torsional shear testing on clays reported in the literature has been ...


    By ASTM International

  • A novel fiber coating for solid phase microextraction and its application for the extraction of n-alkane from aqueous sample

    Base on the previous work in laboratory, a novel polyaniline doped with polydimethylsiloxane coating was developed on a stainless steel wire for solid phase microextraction (SPME) by electroplating method. This electroplating method not only has advantages of ease preparation and simple equipments required, but also increases the lifetime of the SPME fiber. The composite fiber ...


    By IOS Press

  • Newcastle College achieves results with ELE materials testing equipment

    ELE International has supplied the School of Technology at Newcastle College with a complete suite of construction materials testing equipment and environmental instrumentation for use in its new on-site laboratory. The technology is enabling the college to give students invaluable first hand experience of materials testing procedures. The School of Technology teaches Higher National Diplomas in ...

  • Detection of chlorpyrifos in air using low volume polyurethane foam (PUF) sampling with immunoassay

    MATRIX: Air samples ANALYTE: Chlorpyrifos RANGE OF DETECTION: 0.088 to 1.200 mg/m3 MATERIALS: Chlorpyrifos RaPID AssayÒ Kit and Sample Diluent. Reagents: methanol (pesticide grade). Equipment: 40 mL glass vials with Teflon lined caps, 13 x 100 mm glass test tubes, 5 mL and 20 mL serological pipets, micropipet ...


  • Detection of carbendazim in soil

    MATRIX: Soil ANALYTE: Carbendazim, a metabolite of benomyl RANGE OF DETECTION: 37.5 to 750 ppb MATERIALS: Benomyl/Carbendazim RaPID Assay kit and Sample Diluent Reagents: methanol (pesticide grade), sodium hydroxide (ACS grade), distilled or deionized water. Equipment: reciprocating shaker, plastic bottles ...


  • Detection of pentachlorophenol in soil

    MATRIX: Soil ANALYTES: Pentachlorophenol (PCP) RANGE OF DETECTION: 100 ppb to 10 ppm MATERIALS: Pentachlorophenol RaPID AssayÒ kit and Sample Diluent Reagents: methanol (reagent grade), sodium hydroxide (ACS grade), distilled or deionized water. Equipment: reciprocating shaker, plastic bottles (polypropylene or ...


  • Guidance Manual for First Nations Wastewater Treatment Plant Monitoring

    XCG Consultants Ltd., was retained by Indian and Northern Affairs Canada (INAC) and the Ontario First NationsTechnical Services Corporation (OFNTSC) to prepare a guidance manual for First Nations wastewater treatmentplant monitoring. The Guidance Manual was prepared to provide Ontario First Nations’ Wastewater Treatment Plant(WWTP) management and operations staff with guidelines for designing and ...


    By XCG Consultants Ltd.

  • Analysis of Automotive Polymers - Case Study

    The above criteria are important to the professional scientist or laboratory chemist. Introduction Polymers are present in daily life. From the wrappings around the food we eat to the sacks used for the garbage, polymers are practically everywhere. The automobile is no exception. Polymers comprise greater than 40% of a modern automobile; the carpet, seats, padding, knobs, ...


    By Specac Limited

  • 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 ...


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