Sentences with phrase «trace chemicals such»

However, studies have shown that they still release highly toxic trace chemicals such as arsenic, cadmium, chromium, lead and mercury.

NIST chemist Tom Bruno, who invented a method for recovering trace chemicals such as environmental pollutants and forensic evidence, uses a portable version of the instrument to sample vapor inside an old paint can.

Not exact matches

A pair of scientists reported at the American Chemical Society meeting here today that they've developed a machine that in just minutes can detect trace compounds in the breath and diagnose diseases such as diabetes, kidney failure, ulcers, and possibly even cancer.

With rare exceptions, no one has been able to trace parasomnias to an obvious problem, such as an anatomical fault or chemical imbalance in the brain.

Medical professionals might also be able to use such a sensor to check a patient's breath for traces of chemicals that indicate liver disease or internal inflammation.

In addition to its importance in the water cycle, as a potentially exploitable water resource and a source of water for brackish coastal environments such as marshes and coastal lagoons, it also can serve as an important source of dissolved chemical compounds such as nutrients and trace and toxic metals.

This means you can use it to find traces of chemical weapons such as sarin or to identify the residue of pesticides on food.

The new portable kit collects trace chemicals while analysis is performed with other instruments such as gas chromatography and mass spectrometry, which can also be made portable.

The artificial seawater media consists of about 60 ingredients that include chemical elements such as calcium, sodium, magnesium plus organic and inorganic nitrogen, carbon, trace metals and B vitamins.

• Safe: free of disease - causing microorganisms (bacteria, viruses, spores); heavy metals; chemicals from industry and agriculture; pharmaceuticals; disinfectants and related by - products; radioactivity; and synthetic fluoride; • Fresh: neither salty nor stagnant; • Clean: physically, biologically and chemically; • Natural: coming from a pristine mountain stream, glacial river or fresh spring; • Hydrating: water with low surface tension and thus better hydrating; • Mineral balanced: contains a wide variety of minerals including trace minerals, excellent ionic activity (Total Dissolved Solids ~ 300 ppm), including cations such as calcium, magnesium, potassium and sodium; and anions such as nitrate, chloride, bicarbonate, sulfate and carbonate.

Within 26 seconds after exposure to chemicals such as cleaning products, traces of these chemicals can be found in every organ in the body.

Unlike table salt which is actually 97.5 percent sodium chloride, 2.5 percent man - made chemicals, such as moisture absorbents and flow agents, natural salt is 84 percent sodium chloride, 16 percent naturally occurring trace minerals, including silicon, phosphorous and vanadium.

Indeed, dirt may often contain chemicals such as fertilizers and traces of toxins such as weed killers and insecticides.

The authors calculated that the risks from these chemical traces meant consumers should not eat more than one salmon meal a month despite the many health benefits conferred by such fish.

The sludge and slurry comprises a «cocktail of antibiotic and chemical traces,» many of which can be traced back to commonly used household products, including personal - care products such as shampoo.