core sampler Articles

  • What are Characteristics of good core samplers?

    Perpendicular placement: The core sampler must make a vertical or straight entry into sediments to secure a reliably representative cross-section sample. Penetration: It must penetrate the sediments you expect to find and adaptable for many field situations. Core retention: There should be minimal loss of any part of the sample during return to the surface. Maximum sample ...

  • What are Core Samplers?

    A core, in marine research, is a cylindrical section taken from sediments underlying a water body. Core samplers, the instruments used to obtain cores, range from the simple to the complex. The variety of corer types reflect the breadth and variety of marine research. For example, the simplest corers are hand-operated types used in shallow waters to collect sediment cores containing fauna. ...

  • What are some maintenance Tips for Wildco Core Samplers?

    Cleaning Wildco® corer valves: Keep valves and seats in corer heads free of dirt, grease and oil to maintain a good air seal. It’s best to clean valve and seat after each sample with 70% ethyl alcohol. Chemical removal of rust stains from stainless steel: Stainless steel parts may show a rust stain, indicating an active corrosion cell area which should be deactivated. These are ...

  • The Role of Flow Velocity in the Vertical Distribution of Particulate Organic Matter on Moss-covered Travertine Barriers of the Plitvice Lakes (Croatia)

    We investigated the distribution patterns of particulate organic matter (POM) on travertine barriers in respect to flow velocity. Research was conducted on the barrage-lake system of the Plitvice Lakes, Croatia. Four layers were distinguished within the substrate (moss mat + three travertine layers) in three hydraulic habitats at three sites. Substrate samples were collected monthly with a core ...


    By Springer

  • Small-increment electric soil sampler

    Measurement of soil bulk density and volumetric water content in small (2-cm) depth increments is tedious and time consuming. Most methods require compositing several subsamples to control measurement error, and few are feasible with loose, dry soils. We developed and tested a sampler that uses an electric linear actuator to push an intact soil core out of the sampling tube. The soil core is ...

  • Validation of a New Method for Screening Soil and Water for TCE Contamination

    INTRODUCTION ASTM Method D 7203-06, Standard Test Method for Screening Trichloroethylene (TCE)-Contaminated Media Using a Heated Diode Sensor, (ASTM 2006) can be used to screen a sample of soil or water known to contain the halogenated volatile organic compound (HVOC) TCE. The method calls for measuring the TCE concentration in the headspace above the sample using a heated diode sensor ...

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