An improved device with an affinity membrane to collect depth specific contamination free water for environmental assessment

The Analyst ◽  
2018 ◽  
Vol 143 (3) ◽  
pp. 662-669 ◽  
Author(s):  
Sweta Binod Kumar ◽  
Hardik Trivedi ◽  
Narshibhai Rameshbhai Baraiya ◽  
Soumya Haldar
Keyword(s):  
Environmental Assessment ◽  
Water Samples ◽  
Free Water ◽  
Marine Water ◽  
Sampling Device ◽  
Affinity Membrane

The prime requirement for marine water studies is a competent sampling device that can collect water samples perfectly without any contamination to avoid false analysis.

scholarly journals Ultrasensitive environmental assessment of xeno-estrogens in water samples using label-free graphene immunosensors

2018 ◽  
Vol 548 ◽  
pp. 102-108 ◽  
Author(s):  
Huw Barton ◽  
Waldir M. Berbel-Filho ◽  
Sofia Consuegra ◽  
Lewis Francis ◽  
Chedly Tizaoui ◽  
...  
Keyword(s):  
Environmental Assessment ◽  
Water Samples ◽  
Label Free ◽  
Free Graphene

Copper complexation capacity of marine water samples from southern California

1980 ◽  
Vol 14 (12) ◽  
pp. 1482-1486 ◽  
Author(s):  
Richard F. Srna ◽  
Kenn S. Garrett ◽  
Sandra M. Miller ◽  
Alan B. Thum
Keyword(s):  
Water Samples ◽  
Southern California ◽  
Marine Water ◽  
Complexation Capacity ◽  
Copper Complexation

DETERMINATION OF HEAVY METALS IN WATER SAMPLES TAKEN FROM THE SHIKH AREA OF THE CASPIAN SEA USING ICP-MS (7500CX) DEVICE

Alchemist ◽  
2020 ◽  
Vol 1 (2) ◽  
pp. 19-24
Author(s):  
S.R. Hajiyeva ◽  
◽  
T.I. Aliyeva ◽  
N.M. Cafarova
Keyword(s):  
Heavy Metals ◽  
Environmental Monitoring ◽  
Water Samples ◽  
Caspian Sea ◽  
Research Laboratory ◽  
Marine Water ◽  
The Caspian Sea ◽  
Icp Ms ◽  
Analytical Research

Water samples were taken from the Shikh shore of the Caspian Sea to conduct the research. In the marine water samples taken from the area, heavy metals were identified using the Agilent 7500 Series ICP-MS device. The analyzes were performed in the Complex Analytical Research Laboratory of the National Department of Environmental Monitoring

Collection and preservation of eDNA from marine water samples v1

2021 ◽  
Author(s):  
Ana Ramón-Laca ◽  
Abigail Wells ◽  
Linda Park
Keyword(s):  
Water Samples ◽  
Room Temperature ◽  
Marine Water ◽  
Water Collection ◽  
Lysis Buffer

This protocol is designed for water collection from Niskin bottles and filtration at sea using reusable filter cups. Aim: to collect and filter 2.5 L of water at each depth from each CTD cast and preserved the filter at room temperature in lysis buffer

scholarly journals Adaptive Water Sampling Device for Aerial Robots

Drones ◽  
2020 ◽  
Vol 4 (1) ◽  
pp. 5 ◽  
Author(s):  
Cengiz Koparan ◽  
A. Bulent Koc ◽  
Charles V. Privette ◽  
Calvin B. Sawyer
Keyword(s):  
Water Quality ◽  
Electrical Conductivity ◽  
Dissolved Oxygen ◽  
Water Samples ◽  
Sensor Node ◽  
Activation Mechanism ◽  
Water Sampling ◽  
Sampling Device ◽  
Sampling Locations

Water quality monitoring and predicting the changes in water characteristics require the collection of water samples in a timely manner. Water sample collection based on in situ measurable water quality indicators can increase the efficiency and precision of data collection while reducing the cost of laboratory analyses. The objective of this research was to develop an adaptive water sampling device for an aerial robot and demonstrate the accuracy of its functions in laboratory and field conditions. The prototype device consisted of a sensor node with dissolved oxygen, pH, electrical conductivity, temperature, turbidity, and depth sensors, a microcontroller, and a sampler with three cartridges. Activation of water capturing cartridges was based on in situ measurements from the sensor node. The activation mechanism of the prototype device was tested with standard solutions in the laboratory and with autonomous water sampling flights over the 11-ha section of a lake. A total of seven sampling locations were selected based on a grid system. Each cartridge collected 130 mL of water samples at a 3.5 m depth. Mean water quality parameters were measured as 8.47 mg/L of dissolved oxygen, pH of 5.34, 7 µS/cm of electrical conductivity, temperature of 18 °C, and 37 Formazin Nephelometric Unit (FNU) of turbidity. The dissolved oxygen was within allowable limits that were pre-set in the self-activation computer program while the pH, electrical conductivity, and temperature were outside of allowable limits that were specified by Environmental Protection Agency (EPA). Therefore, the activation mechanism of the device was triggered and water samples were collected from all the sampling locations successfully. The adaptive water sampling with Unmanned Aerial Vehicle-assisted water sampling device was proved to be a successful method for water quality evaluation.

Discrepancies in Bacterial Recovery from Dental Unit Water Samples on R2A Medium and a Commercial Sampling Device

2004 ◽  
Vol 48 (4) ◽  
pp. 243-246 ◽  
Author(s):  
Richard S. Smith ◽  
Silvia A. Pineiro ◽  
Ruby Singh ◽  
Elaine Romberg ◽  
Mohamed E. Labib ◽  
...  
Keyword(s):  
Water Samples ◽  
Sampling Device
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