Featured Research

from universities, journals, and other organizations

New technology lowers cost for groundwater contaminant sensors

Date:
May 12, 2010
Source:
DOE/Oak Ridge National Laboratory
Summary:
Long-term continuous monitoring of groundwater where contaminants are present or suspected could be streamlined with new technology.

Long-term continuous monitoring of groundwater where contaminants are present or suspected could be streamlined with a technology developed at the Department of Energy's Oak Ridge National Laboratory.

Related Articles


While laboratory-based technologies for analysis of water contaminants are time-consuming, labor-intensive and expensive, the method introduced in a paper published in Analytical Chemistry is eloquent. The system combines a membrane tube and an ion mobility analysis system, or analyzer, creating a single procedure for in-situ monitoring of chlorinated hydrocarbons in water.

"Our technology represents a low-cost yet highly accurate way to monitor contaminants in water and air," said Chemical Sciences Division researcher Jun Xu, the lead researcher for the project.

The proprietary system, called membrane-extraction ion mobility spectrometry, is a single compact device able to detect aqueous tetrachloroethylene and tricholoroethylene concentrations as low as 75 micrograms per liter with a monitoring duty cycle of three minutes. Xu noted that this technology would reduce the cost of long-term monitoring of contaminants in groundwater by up to 80 percent.

"Based on this technology, a field-deployable sensor can be made and you would no longer need to have someone take a groundwater sample from a well and ship it to a laboratory for testing," Xu said. "The ORNL sensor does all three of these tasks in one step and very quickly, saving money."

Groundwater monitoring, however, is just one example of the technology's capabilities. The sensor can also be configured to monitor well, tap or river water or other water suspected of having an undesirable or possibly illegal level of contamination. Also, additional membranes with different properties can be installed to enable collection of a wider variety of contaminants.

Co-authors of the paper, titled "Membrane-extraction ion mobility spectrometry for in situ detection of chlorinated hydrocarbons in water," are Yongzhai Du, Wei Zhang, William Whitten and David Watson of ORNL and Haiyang Li of the Dalian Institute of Chemical Physics, Chinese Academy of Science.

UT-Battelle manages ORNL for the Department of Energy's Office of Science. Funding for this research was provided by the Strategic Environmental Research and Development Programs.


Story Source:

The above story is based on materials provided by DOE/Oak Ridge National Laboratory. Note: Materials may be edited for content and length.


Cite This Page:

DOE/Oak Ridge National Laboratory. "New technology lowers cost for groundwater contaminant sensors." ScienceDaily. ScienceDaily, 12 May 2010. <www.sciencedaily.com/releases/2010/05/100506112642.htm>.
DOE/Oak Ridge National Laboratory. (2010, May 12). New technology lowers cost for groundwater contaminant sensors. ScienceDaily. Retrieved November 23, 2014 from www.sciencedaily.com/releases/2010/05/100506112642.htm
DOE/Oak Ridge National Laboratory. "New technology lowers cost for groundwater contaminant sensors." ScienceDaily. www.sciencedaily.com/releases/2010/05/100506112642.htm (accessed November 23, 2014).

Share This


More From ScienceDaily



More Matter & Energy News

Sunday, November 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Toyota's Hydrogen Fuel-Cell Green Car Soon Available in the US

Toyota's Hydrogen Fuel-Cell Green Car Soon Available in the US

AFP (Nov. 21, 2014) Toyota presented its hydrogen fuel-cell compact car called "Mirai" to US consumers at the Los Angeles auto show. The car should go on sale in 2015 for around $60.000. It combines stored hydrogen with oxygen to generate its own power. Duration: 01:18 Video provided by AFP
Powered by NewsLook.com
Google Announces Improvements To Balloon-Borne Wi-Fi Project

Google Announces Improvements To Balloon-Borne Wi-Fi Project

Newsy (Nov. 21, 2014) In a blog post, Google said its balloons have traveled 3 million kilometers since the start of Project Loon. Video provided by Newsy
Powered by NewsLook.com
Raw: Paralyzed Marine Walks With Robotic Braces

Raw: Paralyzed Marine Walks With Robotic Braces

AP (Nov. 21, 2014) Marine Corps officials say a special operations officer left paralyzed by a sniper's bullet in Afghanistan walked using robotic leg braces in a ceremony to award him a Bronze Star. (Nov. 21) Video provided by AP
Powered by NewsLook.com
British 'Bio-Bus' Is Powered By Human Waste

British 'Bio-Bus' Is Powered By Human Waste

Buzz60 (Nov. 21, 2014) British company GENeco debuted what its calling the Bio-Bus, a bus fueled entirely by biomethane gas produced from food scraps and sewage. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins