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Learn More. Testing for cocaine and other drugs usually involves two steps: a quick on-site prescreen, and then a more accurate confirmatory test at a distant laboratory.

Now, researchers report development of a backpack-sized device that can perform highly accurate and sensitive tests anywhere within 15 minutes. Aaron Wheeler and colleagues explain that the current two-stage system of testing urine for drugs of abuse is expensive and time-consuming. The samples also could get lost or Newest dating websites while in transport.

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The ideal solution, they say, is to skip the prescreening step and instead bring the lab to the cocaine — but in an easy-to-use, portable package. They put together a compact system that can do all the steps — testing drugs of abuse from urine with a microfluidic device coupled to a Erotic online free movies mass spectrometer that can identify the substances. The backpack-sized instrument could analyze cocaine, benzoylecgonine a metabolite of cocaine and codeine in four samples in less than 15 minutes.

The amount of cocaine they could detect was compatible with limits set by the United Nations Office on Drugs and Crime.

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The researchers say the device could be used for many different kinds of tests in which laboratory-quality are needed quickly. National Science Foundation. Careers Launch Naughty babysitter sex stories grow your career with career services and resources. Develop and grow in your career Find and land a job Explore career options Find networking opportunities Professional Communities Career Events. Communities Find a chemistry community of interest and connect on a local and global level.

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Funding Funding to support the advancement of the chemical sciences through research projects. As part of a portable cocaine test that takes just minutes, this microfluidic device extracts drugs of abuse from dried urine samples. Share this :.