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  2. Good laboratory practice - Wikipedia

    en.wikipedia.org/wiki/Good_Laboratory_Practice

    The GLP amendment Final Rule was published on September 4, 1987 [12] and became effective on October 5, 1987. [ 5 ] The Environmental Protection Agency (EPA) had also encountered similar problems in data submitted to it, and issued its own draft GLP regulations in 1979 and 1980, publishing the Final Rules in two separate parts ( 40 CFR 160 and ...

  3. Headspace gas chromatography for dissolved gas measurement

    en.wikipedia.org/wiki/Headspace_Gas...

    One of the most widely used methods for headspace analysis is described by the United States Environmental Protection Agency (USEPA). Originally developed by the R.S. Kerr USEPA Laboratory in Ada, Oklahoma as a "high quality, defendable, and documented way to measure" methane, ethane, and ethene, [7] [8] RSKSOP-175 is a standard operating procedure (SOP) and an unofficial method employed by ...

  4. Comprehensive two-dimensional gas chromatography - Wikipedia

    en.wikipedia.org/wiki/Comprehensive_two...

    For example, GC Image was the first software developed for two dimensional gas chromatography. Some software [15] packages are used in addition to the normal GC (or GC-MS) packages while others are built as a complete platform, [16] [17] controlling all aspects of the analysis. The new and different way of presenting and evaluating data offers ...

  5. Gas chromatography - Wikipedia

    en.wikipedia.org/wiki/Gas_chromatography

    Gas chromatography (GC) is a common type of chromatography used in analytical chemistry for separating and analyzing compounds that can be vaporized without decomposition. Typical uses of GC include testing the purity of a particular substance, or separating the different components of a mixture. [ 1 ]

  6. 4 Nations Face-Off roster winners, losers: Hughes, Tkachuk ...

    www.aol.com/4-nations-face-off-roster-030143003.html

    The United States, Canada, Finland and Sweden will take part in the Feb. 12-20 tournament. Each team will play three games in a round robin, with the top two advancing to the championship game.

  7. United States Pharmacopeia - Wikipedia

    en.wikipedia.org/wiki/United_States_Pharmacopeia

    The USP is published in a combined volume with the National Formulary (a formulary) as the USP-NF. [2] If a drug ingredient or drug product has an applicable USP quality standard (in the form of a USP-NF monograph), it must conform in order to use the designation "USP" or "NF".

  8. Best Buy broadly misses earnings estimates as consumers pull ...

    www.aol.com/finance/best-buy-expected-see...

    Earnings per share guidance was updated to a range of $6.10 to $6.25, compared to a previous range of $6.10 to $6.35. Barry said the company is at a turning point, as "layers of pressures that ...

  9. Gas chromatography–mass spectrometry - Wikipedia

    en.wikipedia.org/wiki/Gas_chromatography–mass...

    GC–MS is used for the analysis of unknown organic compound mixtures. One critical use of this technology is the use of GC–MS to determine the composition of bio-oils processed from raw biomass. [29] GC–MS is also utilized in the identification of continuous phase component in a smart material, magnetorheological (MR) fluid. [30]