automated sampling Articles

  • Automating Sample Prep – The Questron Story

    We live in challenging times. Everyday, the tabloids, and other media channels are full of worrisome news of our changing environment, caused by humanity with its ever-tightening grasp on our planet. The net result is the ominous and uncertain future of our landscape and our environment. What can we, as corporate citizens, do to help? We, at Questron ( ...

  • Validation of EPA Method 8260C on a Thermo Scientific TRACE 1300 Series GC with New Helium Saver Inlet

    Abstract As helium continues to become more expensive, many labs are searching for more cost effective carrier gas options. This study demonstrates the effectiveness of the Atomx automated sample prep system's nitrogen purge feature in conjunction with Thermo Scientific's TRACE 1300 series Helium Saver inlet at producing quality data while also reducing helium consumption. Calibration and ...


    By Teledyne Tekmar

  • Volatile Organic Compounds in Every Day Food

    Abstract Volatile Organic Compounds (VOCs) have been analyzed in drinking water and pharmaceuticals extensively in recent years. Now, VOCs in food products have became a major interest among researchers. Utilizing an Atomx automated VOC sample prep system in conjunction with a gas chromatograph-mass spectrometer (GC/MS) will allow for the determination of VOCs in food products. The automated ...


    By Teledyne Tekmar

  • Calibrating Gasoline Range Organics (GROs) using an automated dilution scheme with the Atomx Concentrator/Multimatrix Autosampler

    Abstract In developing the Atomx Automated Sample Prep System, Teledyne Tekmar integrated both a P&T concentrator and a multi-matrix autosampler into a single platform system that can be used in the analysis of soil, water, and soils requiring methanol extraction. This “all-in-one” setup has allowed for greatly increased throughput and efficiency through the built in features ...


    By Teledyne Tekmar

  • Automated Consignment Sampling Systems

    Introduction The following is a case study where consignment sampling has been implemented at a UK coal fired power station. Bias-Free Sampling The production of consistent and repeatable ‘bias-free’ samples is not possible but all international sampling standards give precise limits within which systems can be considered as being ...


    By Eriez Magnetics Europe Ltd

  • Privatization and Outsourcing Storm Water Discharge Requirements: Simplification Through Automated Sampling

    ABSTRACT Kelly Air Force Base (KAFB) is a large industrial complex that is currently undergoing a Base Realignment and Closure (BRAC) action. Privatization is occurring concurrently with the base closure and realignment. The base maintains both two Environmental Protection Agency (EPA) National Pollutant Discharge Elimination System (NPDES) and two Texas Natural Resource Conservation ...


    By Weston Solutions, Inc

  • X-Ray Fluorescence-Based Multi-Metal Continuous Emission Monitor

    ABSTRACT: Army demilitarization incinerators will need to comply with the Hazardous Waste Combustor National Emission Standard for Hazardous Air Pollutants that will regulate metals and metal compounds listed under the Clean Air Act Amendments. A large problem for these incinerator operations is limited knowledge of the type and quantity of emitted metals, so that compliance may be determined ...

  • Sensors & Automation to Simplify Bioprocess Operations

    Utilising sensors & automation to simplify bioprocess operations means that more work can be done in less time. By automating the routine tasks carried out in the lab, valuable time can be devoted to more important tasks. Here are two practical examples of automating routine tasks in upstream and downstream bioprocessing with relatively simple instrumentation. Automated ...


    By Broadley-James Ltd

  • Determination of PBDEs in Sediment Samples using Pressurized Solvent Extraction and Automated Soxhlet Extraction

    The efficiency of pressurized solvent extraction (PSE) was investigated by comparing PSE with automated Soxhlet extraction. Sediment samples containing polybrominated diphenylethers (PBDEs) were processed in the SpeedExtractor E-914 for PSE and the Extraction System B-811 for automated Soxhlet extraction. Quantification of PBDEs was performed by GC-MS. This study shows that both techniques are ...


    By BÜCHI Labortechnik AG

  • Analysis of Trichloroanisole in Wine and Cork using a Purge and Trap Multimatrix Autosampler

    Abstract Due to its low odor threshold, 2,4,6-trichloroanisole (TCA), the compound responsible for “cork taint”, requires extremely sensitive analysis. TCA is a fungal metabolite of 2,4,6-trichlorophenol (TCP). Even minute contamination can cause issues with regards to taste. This study will demonstrate a purge and trap method for analyzing wine and cork samples at the ...


    By Teledyne Tekmar

  • Increased sample throughput for ICP-OES applied to U.S. EPA method 200.7

    The application of an SC-FAST sample introduction system to the analysis of natural and certified water samples is described. The SC-FAST system consists of an autosampler, sample loop, switching valve, high efficiency nebulizer and a glass cyclonic spray chamber to perform analysis by direct nebulization. The potential benefits of this introduction system are numerous and include: increased ...


    By PerkinElmer, Inc.

  • Requirements of an Automated Sample Delivery System in Today’s Realm of Ever Increasing Sensitivity Demands Utilizing the Atomx Concentrator/Multimatrix Autosampler

    Abstract As today’s instrumentation and experimental techniques improve on sensitivity and efficiency, we must also provide better ways to decrease carryover and ensure the instrumentation is running at its optimum capability. In this study, data was collected to evaluate carryover of target analytes in subsequent blanks following high concentration samples. The sample analysis was ...


    By Teledyne Tekmar

  • Analytical Trap Comparison for USEPA Method 8260C

    Abstract Purge and trap concentration is a technique that is used for the analysis of Volatile Organic Compounds (VOCs). The major component of any purge and trap system is the analytical trap. This trap is responsible for retaining the VOCs during the purge cycle and then releasing them upon heating and transfer to the GC/MS for separation and detection. While most standard ...


    By Teledyne Tekmar

  • The spectral absorption coefficient at 254 nm as a real-time early warning proxy for detecting faecal pollution events at alpine karst water resources

    Because spring water quality from alpine karst aquifers can change very rapidly during event situations, water abstraction management has to be performed in near real-time. Four summer events (2005–2008) at alpine karst springs were investigated in detail in order to evaluate the spectral absorption coefficient at 254 nm (SAC254) as a real-time early warning proxy for faecal pollution. For the ...


    By IWA Publishing

  • Comparison of BTEXS in Olive Oils by Static and Dynamic HT3 Headspace

    Abstract Purge and trap concentration is a technique that is used for the analysis of Volatile Organic Compounds (VOCs). The major component of any purge and trap system is the analytical trap. This trap is responsible for retaining the VOCs during the purge cycle and then releasing them upon heating and transfer to the GC/MS for separation and detection. While most standard ...


    By Teledyne Tekmar

  • Reducing Cycle Time for Analysis of 1,4-Dioxane using an Atomx Automated Sample Prep System

    Abstract In order to determine the concentration of volatile organic compounds (VOCs) in water and soil matrices the USEPA developed Method 8260C1 in conjunction with preparative Methods 50302 and 50353 . Water and soil samples were analyzed in this study. A working linear calibration curve and Method Detection Limits (MDLs) will be demonstrated for the target compound list. The water study ...


    By Teledyne Tekmar

  • Analysis of Volatile Organic Compounds in Different Beverages

    Abstract Volatile Organic Compounds (VOCs) have been a major concern of the U.S. Environmental Protection Agency (USEPA) leading strict regulations of VOCs present in drinking water. This study will focus on the amount of VOCs present in commercially available beverages. The analysis will utilize the Atomx, an automated VOCs sample prep system with an in-vial purge, in conjunction with gas ...


    By Teledyne Tekmar

  • Validation of Wisconsin Gasoline Range Organics

    Abstract The Wisconsin DNR Modified Gasoline Range Organics (Wisconsin GRO) Method is used to determine gasoline and gasoline components in water and soil. The water samples are analyzed by purge and trap, while the soil samples undergo an additional methanol extraction. For this application note, a working linear calibration curve and quality control checks were evaluted by using a Teledyne ...


    By Teledyne Tekmar

  • What is Chemical Oxygen Demand (COD)?

    Chemical Oxygen Demand (COD) analysis is a measurement of the oxygen-depletion capacity of a water sample contaminated with organic waste matter. Specifically, it measures the equivalent amount of oxygen required to chemically oxidize organic compounds in water. Why Measure COD? COD is used as a general indicator of water quality and is an integral part of all water quality ...


    By MANTECH Inc.

  • Cost effective monitoring strategies in MS4 programs - Case Study

    A Tale of Two Cities: The Evolution of Monitoring Strategies In Municipal Separate Storm Sewer System (MS4) Programs City of Hoover NPDES Permit History On October 12. 2001, the Alabama Department erf Environmental Management (ADEM) issued National Pollutant Discharge Elimination Systems (NPDES) Permit Number ALS000001 for "Birmingham Area Municipal ...


    By In-Situ, Inc.

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