Featured Research

from universities, journals, and other organizations

New Test Speeds Triclosan Detection In Water

Date:
January 24, 2009
Source:
USDA/Agricultural Research Service
Summary:
A new test for detecting triclosan should expedite environmental monitoring of the antibacterial agent in rivers, wells and other water sources, according to new studies.

ARS has developed a new test for detecting triclosan that should expedite environmental monitoring of this antibacterial agent in rivers, wells and other water sources.
Credit: Ben Mills

A new test for detecting triclosan should expedite environmental monitoring of the antibacterial agent in rivers, wells and other water sources, according to studies by Agricultural Research Service (ARS) and collaborating scientists.

Triclosan's widespread use in household products—from hand soaps and toothpaste to socks and pet shampoos—has led to debate over the chemical's impact on the environment, wildlife, human health and antimicrobial resistance. Existing methods of gathering information on triclosan and its metabolites in the environment are costly to use, require dedicated lab space and necessitate specialized training, according Weilin Shelver.

Shelver, a chemist in the ARS Animal Metabolism-Agricultural Chemicals Research Unit in Fargo, N.D., developed the new triclosan test in collaboration with Jennifer Church, Lisa Kamp and Fernando Rubio, a research team at Abraxis, Inc., of Warminster, Pa.

The new test, called a magnetic particle enzyme immunoassay, isn't intended to replace the gas chromatography-mass spectrometry (GC-MS) methods now used, but rather complement them, especially for routine monitoring of tricolosan in a large number of water samples.

The team evaluated the test by using it to detect triclosan and its derivative, methyl-triclosan, in river water, tap water and sewage samples from three municipal plants in the Red River Basin area shared by North Dakota and Minnesota. River and tap water analyses revealed triclosan and methyl-triclosan levels below 20 parts per trillion (ppt), indicating little contamination of the rivers that supplied the samples.

The team's wastewater analysis showed that, before treatment, triclosan levels sometimes exceeded 3,000 ppt, but after treatment, those levels fell below 500 ppt. According to Shelver, the results confirmed other reports indicating that sewage plants' purification steps removed much, but not all, of the triclosan from water before it is discharged into the environment.

In addition to correlating well with GC-MS analysis during the study's validation phase, the new test proved sensitive enough to distinguish triclosan from chemically similar contaminants.


Story Source:

The above story is based on materials provided by USDA/Agricultural Research Service. Note: Materials may be edited for content and length.


Cite This Page:

USDA/Agricultural Research Service. "New Test Speeds Triclosan Detection In Water." ScienceDaily. ScienceDaily, 24 January 2009. <www.sciencedaily.com/releases/2009/01/090120142556.htm>.
USDA/Agricultural Research Service. (2009, January 24). New Test Speeds Triclosan Detection In Water. ScienceDaily. Retrieved April 24, 2014 from www.sciencedaily.com/releases/2009/01/090120142556.htm
USDA/Agricultural Research Service. "New Test Speeds Triclosan Detection In Water." ScienceDaily. www.sciencedaily.com/releases/2009/01/090120142556.htm (accessed April 24, 2014).

Share This



More Earth & Climate News

Thursday, April 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

UN Joint Mission Starts Removing Landmines in Cyprus

UN Joint Mission Starts Removing Landmines in Cyprus

AFP (Apr. 23, 2014) — The UN mission in Cyprus (UNFICYP) led a mine clearance demonstration on Wednesday in the UN-controlled buffer zone where demining operations are being conducted near the Cypriot village of Mammari. Duration: 01:00 Video provided by AFP
Powered by NewsLook.com
California Drought Is Good News for Gold Prospectors

California Drought Is Good News for Gold Prospectors

AFP (Apr. 22, 2014) — For months California has suffered from a historic drought. The lack of water is worrying for farmers and ranchers, but for gold diggers it’s a stroke of good fortune. With water levels low, normally inaccessible areas are exposed. Duration: 01:57 Video provided by AFP
Powered by NewsLook.com
Raw: MN Lakes Still Frozen Before Fishing Opener

Raw: MN Lakes Still Frozen Before Fishing Opener

AP (Apr. 22, 2014) — With only three weeks until Minnesota's fishing opener, many are wondering if the ice will be gone. Some of the Northland lakes are still covered by up to three feet of ice, causing concern that just like last year, the lakes won't be ready. (April 22) Video provided by AP
Powered by NewsLook.com
Scientists Warn Of Likely El Niño Event This Year

Scientists Warn Of Likely El Niño Event This Year

Newsy (Apr. 22, 2014) — With Pacific ocean water already showing signs of warming, the NOAA says there's about a 66 percent chance the event will begin before November. Video provided by Newsy
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:
from the past week

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