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  2. 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 ]

  3. Headspace - Wikipedia

    en.wikipedia.org/wiki/Headspace

    Headspace or ullage, the unfilled space in a container; Headspace technology, the gaseous constituents of a closed space above liquids or solid emitting and vapors measured using headspace gas chromatography; Headspace (firearms), a chamber measurement; Headroom (photographic framing), a concept of aesthetic composition in imaging

  4. Beatnik (company) - Wikipedia

    en.wikipedia.org/wiki/Beatnik_(company)

    Brian Salter, who had left Beatnik in 1998 but continued to have a close working relationship with the company and its clients, converted several Headspace Music Library tracks into the SMAF format in 2001, to be used as polyphonic ringtones within Japan, where phones largely used Yamaha's MA series of sound chips rather than Beatnik's software ...

  5. Headspace gas chromatography for dissolved gas measurement

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

    The method uses headspace gas injected into a gas chromatographic column (GC) to determine the original concentration in a water sample. [9] A sample of water is collected in the field in a vial without headspace and capped with a Teflon septum or crimp top to minimize the escape of volatile gases. It is beneficial to store the bottles upside ...

  6. Gas chromatography–mass spectrometry - Wikipedia

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

    The mass spectrometry process normally requires a very pure sample while gas chromatography using a traditional detector (e.g. Flame ionization detector) cannot differentiate between multiple molecules that happen to take the same amount of time to travel through the column (i.e. have the same retention time), which results in two or more ...

  7. File:Headspace gas chromatography english vs.svg - Wikipedia

    en.wikipedia.org/wiki/File:Headspace_gas...

    English: Schematic drawing of the headspace analysis in gas chromatography. After thermal equilibration, a sample is taken out of the headspace and the analytical compounds are seperated and identified on the GC column. Main advantage: Even with complex sample matrices (e.g. blood, honey), the GC column is not contaminated with sample components.

  8. Glossary of Carnatic music - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_Carnatic_music

    Sthāyi refers to an octave of music. There are 5 sthāyis in Carnaatic music, namely, Anumandara (lowest), Mandara (literally means chant, which means lower), Madhya (literally means middle), Taara (means higher) and Athitaara (meaning very high). Most artists sing over two octaves or two and a half octaves range (within Mandra, Madhya and ...

  9. Headspace (band) - Wikipedia

    en.wikipedia.org/wiki/Headspace_(band)

    Headspace is an English progressive metal band formed in 2006 by keyboardist Adam Wakeman with former Threshold singer Damian Wilson. [1] Wakeman is also a keyboardist in Ozzy Osbourne 's band. Their first release, an EP entitled I Am... coincided with their support shows with Osbourne on the European Leg of the Black Rain tour in 2007.