Sentences with phrase «in water samples»

To determine the parameters of a customer's aquarium, it's often helpful to have the customer bring in a water sample for analysis.

It can take weeks to get results on the level of bacteria in water samples.

Customers that encounter a tank disaster should be encouraged to bring in water sample for analysis.

In an expedition to the same region four years later, she had the chance to compare the measurements taken at different times, and found significantly less methane in the water samples.

The team are now running further analyses: the noble gases in the water samples will provide a fairly precise age.

Of the three tap water samples analyzed, estradiol and androsterone were detected in tap water in laboratories in France and Spain, while corticosterone was detected in the water sample from the Chinese laboratory.

The chemical PFOA has been detected in water samples taken from the Mohawk River near the Colonie landfill.

The designation came 17 months after a resident first reported that PFOA, a toxic chemical, was detected in water samples in the village's well system at levels exceeding those recommended by the U.S. Environmental Protection Agency.

Mayor John Tkaczyk said a second day of testing showed the absence of Coliform, the bacteria that was found in water samples late last week, prompting the boil water notice and since then, city workers have been treating the water aggressively to clear up the system.

And there is another caveat: the probe «gives us the concentration of manatee DNA in our water sample, but it can't yet tell us how many animals are present,» Hunter said.

To do this we carry out a standard 18 - hour test for the detection and quantification of E. coli in water samples.

Because they are so small, multiple testing methods are used, including cross-polarized light microscopy, scanning electron microscopy and PCR testing of the DNA of larvae in the water sample.

They reported this finding in July after analyzing 50 - plus years of data on light penetration of the ocean surface and plankton abundance in water samples.

Mark, who focuses on the Andes region, developed a method of determining how much of a community's water supply is glacier - fed by analyzing the hydrogen and oxygen isotopes in water samples.

Tiny plankton and bits of plastic commingle in this water sample taken in the vicinity of the so - called «Great Pacific Garbage Patch,» a large area in the North Pacific Ocean known for accumulations of plastic marine debris.

The team found the same regeneration process occurring in water samples taken from the Iowa River, and from a test pond seeded with manure from cattle that had been treated with trenbolone acetate.

This means if urobilin is present in a water sample — and zinc ions have been added — the sample will give off a greenish glow when examined under an ultraviolet light, he says.

«Using this data, the software determines the relevant indicators, which when analysed in water samples with an unknown source of faecal pollution, would allow its source to be determined,» he adds.

In addition to Project BioEYES, the program has expanded to include a new project called Your Watershed, Your Backyard, in which middle - school students grow zebrafish embryos in water samples from their own local watershed to test the effects of pollution.

Indeed, symposium talks covered diverse topics such as using DNA sequencing to track biodiversity in water samples from Monterey Bay (Collin Closek) as well as using crowdsourcing to create an open repository of research talks (Rajan Vaish).

Quantitative real - time PCR (qPCR) DNA - based method specifically for testing Legionella pneumophila in water samples that has the advantage of much greater sensitivity coupled with the potential to provide results in as little as 24 hrs after submission to the lab.

The lesson plans allow students to identify microinvertebrates in their water sample, share their findings on the web site, and analyze the data.

The idea is that they bring in their water sample only when they have a problem, not just to get a free regular checkup.

Duties - Pump, Filter, and Treat Water, Do Backwash to clean Water Filters, Maintain Water Plant, Maintain Boilers, Washer and Dryers, Maintain, fix, and repair broken or Frozen Water and sewer pipes, send in water samples, Do daily, weekly, and monthly water sample tests, Mix Chemicals such as Chlorine, Potassium Permanganate, and Polymers, Supervise alternate Water Plant Operator, Attend Trainings

It wasn't until the 1980s that a team of scientists from the University of Arizona, led by Joan Rose, developed a method to detect their presence in water samples.

CHICAGO — The Chicago Park District banned swimming at North Avenue Beach on Thursday after tests revealed high levels of E. coli bacteria in water samples taken Wednesday.

He has already published papers on six new species he found in the water samples he collected from Sawa Lake in southern Iraq.

According to scientists at Rockefeller University, however, there may be an easier alternative: just look for the animals» DNA in water samples.

As fate would have it, soon after our system was installed, I found an article in The Washington Post about hexavalent chromium, or chromium 6, showing up in water samples from 35 U.S. cities.