automatic sampling Articles

  • 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

  • Consumption estimation with a partial automatic meter reading deployment

    Automatic water meter reading (AMR) is now the best kind of technology to supply real time information on water consumption. Complete equipment of a district metered area enables the assessment of the total consumption of a finite size population, for a time scale sometimes as short as an hour. However, its cost for generalization can generate high capital expenditures (CAPEX), unaffordable for ...


    By IWA Publishing

  • An Automatic Feedback System for Resonant Column Testing

    A test method and electronic circuitry is described that greatly simplifies measurement of resonant frequency in the resonant column test. It utilizes a feedback system to detect resonance automatically without requiring manual adjustment and also eliminates the need for a sine wave audio oscillator or oscilloscope. A constant and controllable strain level in the soil sample is ensured, ...


    By ASTM International

  • Biochemical acidogenic potential in domestic wastewaters: effect of sampling and storage to characterize daily average composite samples

    To estimate the expectable enhanced biological phosphorus removal value of a wastewater, the concentration of volatile fatty acids (VFAs) and the biochemical acidogenic potential (BAP) are generally determined on grab samples of wastewater, as these variables are prone to rapid change after sampling. However, such sampling technique do not take into account the variations of these parameters ...


    By IWA Publishing

  • Case study - Low-flow groundwater sampling on a nuclear site

    Nuclear licensed site use of low-flow groundwater sampling shows: Reduced time, reduced quantity of purge water – both thus reducing cost - and reduced risk of operator contact especially with potentially radioactive-contaminated purge water thanks to a self-contained enclosed system. One of the biggest headaches on site is the purge water and the expense of getting rid of it – after ...


    By Geotech

  • Application of new least-squares methods for the quantitative infrared analysis of multicomponent samples

    Improvements have been in previous least-squares regression analyses of infrared spectra for the quantitative estimaiton of conecntratons of multicomponent mixtures. Spectral baselines are fitted by least-squares methods, and overlaping spectral features are accouted for in the fitting procedure. Selection peaks above a threshold value reduces computation time and data storage requirements. Four ...


    By CIC Photonics, Inc.

  • ELITe InGenius a new Molecular Diagnostics Sample-to-Result solution and first fully automated sample-to-result solution introduced with transplant monitoring menu

    ELITe InGenius is an integrated sample to-result solution dedicated to Molecular Diagnostics which automatically performs extraction, amplification and result interpretation with an unprecedented flexibility and assay menu possibility. The system combines a universal extraction process in unitary cartridge with individual and independently controlled RT PCR in cassette based format enabling the ...


    By ELITech Group

  • World Oil: Holistic optimization approach improves coring efficiency, sample quality

    To acquire a high-quality core in as few runs as possible, and reduce operational costs, a provider must maximize ROP while ensuring efficient, safe surface handling of the rock sample and coring assembly. To satisfy these requirements, HT30 Max, a full-gauge core barrel system with jam mitigation technology, has been introduced. To improve initial production and ultimate recovery, we must first ...


    By Baker Hughes, a GE company

  • Automatic calibration method for DC-DC power converter with sensorless adaptive voltage positioning controller

    An automatic calibration method for a previously proposed sensorless adaptive voltage positioning (SLAVP) controller is presented in this article. The SLAVP scheme achieves AVP control without the need for current sensing and sampling required by conventional AVP schemes. However, the accuracy of the SLAVP control scheme is sensitive to the power path equivalent DC resistance value, R eq ...


    By Inderscience Publishers

  • Sustained effectiveness of automatic chlorinators installed in community-scale water distribution systems during an emergency recovery project in Haiti

    In 2012 and 2013, as part of relief-to-recovery programming, Child Relief International partnered with Haiti Philanthropy to install automatic tablet-based chlorinators in 79 gravity-fed water distribution systems in Southeast Department, Haiti. We carried out a mixed methods evaluation to assess sustained effectiveness of chlorinators approximately two years after installation, including 18 ...


    By IWA Publishing

  • Analysis of PCBs in emission samples: non ortho, mono-ortho and homolog totals by level of chlorination

    IntroductionPolychlorinated biphenyls (PCBs) are one of the most widespread persistent organic pollutants, identified in every component of the global ecosystem. A production of approximately 2 * 10 9 Kg technical PCB occurred form 1930 to the late 1970 1 and the total amount released into the environment is estimated in 370. 000 2 tonnes. Twelve of the possible 209 PCBs are non- and mono-ortho ...


    By Monitoring Systems GmbH

  • Implementation of an automatic and miniature on-line multi-parameter water quality monitoring system and experimental determination of chemical oxygen demand and ammonia-nitrogen

    An automatic, miniature and multi-parameter on-line water quality monitoring system based on a micro-spectrometer is designed and implemented. The system is integrated with the flow-batch analysis and spectrophotometric detection method. The effectiveness of the system is tested by measuring chemical oxygen demand (COD) and ammonia-nitrogen in water. The results show that the modified system ...


    By IWA Publishing

  • Analysis of Na, K, Ca and Mg in Mineralwater using the Microsampling Method

    Sodium, Potassium, Calcium, and Magnesium belong to the essential mineral substances in the human organism. These elements take influence in the generation of enzymes and hormones, control the osmotic pressure in tissues and body fluids and are important for the exchange procedures in the cell membranes. In this application, the control of Na, K, Ca and Mg in a variety of mineral waters has been ...

  • Water Quality Analysis Safeguarding Families

    Water is intensely purified and treated by water authorities before being ready for thousands of families. Everybody expects clean and safe tap water when turning on their taps. A water quality analysis center in Shanghi, China excels in its water testing and analysis with fully automatic potentiometric titration. Traditional Water Quality Analysis In order to ensure water hygiene and safety ...


    By Mettler - Toledo Int. Inc

  • LIMS and the Automation of the Water Lab

    (Reproduced by permission from Laboratorium Magazine) Europe’s most modern water lab is located in Leeuwarden, in the Netherlands. Vitens made a big splash when it brought this modern building, with its transparent design, into operation in January 2005. Many colleagues from Dutch and foreign labs are eager to visit this installation, where water control samples are routed automatically with the ...


    By STARLIMS Corporation

  • Model-based monitoring of stormwater runoff quality

    Monitoring of micropollutants (MP) in stormwater is essential to evaluate the impacts of stormwater on the receiving aquatic environment. The aim of this study was to investigate how different strategies for monitoring of stormwater quality (combining a model with field sampling) affect the information obtained about MP discharged from the monitored system. A dynamic stormwater quality model was ...


    By IWA Publishing

  • New Automation Guide for Improved Titration Workflows

    Find valuable tips and tricks on how to optimize your titration workflows in the new METTLER TOLEDO Automation Guide. Download the Titration Automation Guide today and learn how titration processes can be automated for highest efficiency and security in the laboratory. Modern laboratories look into automation to address the demands for high throughput and variety of samples and workflows. ...


    By Mettler - Toledo Int. Inc

  • Using Deconvolution Software to Identify Unknown Compounds

    Many software packages for the qualitative and quantitative analysis of GC/MS data allow the operator to indicate the target compounds of interest and generate a report that includes the observed concentration of each target compound in the sample. Given the targeted nature of the analysis, additional (i.e. unexpected) compounds present in the sample are not identified, unless the operator ...


  • Discrete or Continuous Flow Analysis – which is better?

    A wide variety of factors affect the choice of analytical instrument. These include target workload (samples/hour), variety of chemistries, methods required, bench space, staff availability etc. In the following article Lalicia Potter, Technical Sales & Support Director at SEAL Analytical, examines one of the common decisions facing laboratory managers. As the manufacturer of an ...


    By SEAL Analytical, Inc.

  • Design of a Large Calibration Chamber

    The design and operation of a conceptually simple, low-cost chamber for calibration of cone penetrometers and other in situ devices is described. The chamber weighs over 5500 kg and houses a 4400-kg soil sample that is 1.5 m in diameter and height. Operations in the chamber are automated using a self-equilibrating hydraulic insertion frame, a soil pluviation system for sand placement, a vacuum ...


    By ASTM International

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