Sentences with phrase «several chemical tests»
After carrying out several chemical tests, he found the new element had properties similar to iodine.
http://www.chemistrylearner.com/ Not exact matches
Meanwhile, back at the trailer, lab technicians have taken each specimen, tested it in several chemical processes that take roughly three hours and then marked each tag with a notice that reads «negative» — or, very occasionally, «positive.»
Chemical weapon use is very difficult to prove after 48 hours, so suspicions were raised when Syrian authorities only allowed UN weapons inspectors into the area to test yesterday, several days after the attack
Before the vote, several residents at the town board meeting spoke against the purchase, particularly without first having the soil tested for toxic chemicals.
Michael Garle, the project's supervisor, says that several research teams have tried measuring levels of cytokines as an alternative to traditional tests where chemicals are applied to the skin of an animal such as a rabbit.
Instead, they create a library of several hundred fluorophores with varying chemical additions and three - dimensional conformations and then test each in mice to see which are taken up by specific tissues in the body.
However, the precise nature of that role is undergoing a visible change, not only because of the new synthetic methods and technologies now available to the synthetic and medicinal chemist, but also in several key areas, particularly in drug metabolism and chemical toxicology, as chemists deal with the ever more rapid turnaround of testing data that influences their day - to - day decisions.
Several products with HFCS were tested by an agricultural research group which found this toxic chemical and discovered that HMF breaks down into other substances even more deadly.
It is tested several times to give a balanced chemical composition.
The urine sample is tested for several chemical components (glucose, protein, blood and more), as well as any cells (WBC, RBC, epithelial, etc.) and crystals.
Having won several prizes at OSU's eighth annual Engineering Expo in May, including the «Best Chemical Engineering Project,» the team is now hard at work testing and refining the polymer for biodegradability and durability.