enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Serum-separating tube - Wikipedia

    en.wikipedia.org/wiki/Serum-separating_tube

    The gel in SST II tubes (which appears slightly less opaque) is supposed [weasel words] to have less effect on drug levels in serum. [citation needed] Blood samples should be allowed time to form a clot at room temperature for 30–60 min. [6]

  3. List of unsolved problems in chemistry - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    This article needs attention from an expert in chemistry. The specific problem is: Incomplete list. WikiProject Chemistry may be able to help recruit an expert.

  4. Product (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Product_(chemistry)

    Much of chemistry research is focused on the synthesis and characterization of beneficial products, as well as the detection and removal of undesirable products. Synthetic chemists can be subdivided into research chemists who design new chemicals and pioneer new methods for synthesizing chemicals, as well as process chemists who scale up chemical production and make it safer, more ...

  5. Michael addition reaction - Wikipedia

    en.wikipedia.org/wiki/Michael_Addition_Reaction

    This reaction produced the 1,6-addition product 2 in 0% yield, the 1,6-addition product 3 in approximately 99% yield, and the 1,4-addition product 4 in less than 2% yield. This particular catalyst and set of reaction conditions led to the mostly regioselective and enantioselective 1,6-Michael addition of ethyl sorbate 1 to product 3 .

  6. Standardized test - Wikipedia

    en.wikipedia.org/wiki/Standardized_test

    Standardized tests are designed in such a way that the questions and interpretations are consistent and are administered and scored in a predetermined, standard manner. [1] Any test in which the same test is given in the same manner to all test takers, and graded in the same manner for everyone, is a standardized test.

  7. Hydroxybenzotriazole - Wikipedia

    en.wikipedia.org/wiki/Hydroxybenzotriazole

    Hydroxybenzotriazole (abbreviated HOBt) is an organic compound that is a derivative of benzotriazole.It is a white crystalline powder, which as a commercial product contains some water (~11.7% wt as the HOBt monohydrate crystal).

  8. C1 chemistry - Wikipedia

    en.wikipedia.org/wiki/C1_Chemistry

    C1 chemistry is the chemistry of one-carbon molecules. Although many compounds and ions contain only one carbon, stable and abundant C-1 feedstocks are the focus of research. Four compounds are of major industrial importance: methane, carbon monoxide, carbon dioxide, and methanol. Technologies that interconvert these species are often used ...

  9. Environmental engineering - Wikipedia

    en.wikipedia.org/wiki/Environmental_engineering

    Environmental engineering is a professional engineering discipline related to environmental science.It encompasses broad scientific topics like chemistry, biology, ecology, geology, hydraulics, hydrology, microbiology, and mathematics to create solutions that will protect and also improve the health of living organisms and improve the quality of the environment.