| 41. | Undecane may also be used as an internal standard in gas chromatography when working with other hydrocarbons.
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| 42. | The principle can be also applied to the fabrication of monolithic HPLC columns or gas chromatography columns.
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| 43. | Have you tried gas chromatography or mass spectrometry to confirm the degree of purity of the evilness?
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| 44. | It is also used in Electron capture detector in gas chromatography for the detection mainly of halogens.
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| 45. | The method of Martin and James, however, became the basis for subsequent developments in gas chromatography .)
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| 46. | "Next, we'll try gas chromatography ."
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| 47. | Researchers at the University of Oxford have identified 110 compounds produced by the violet gland using gas chromatography.
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| 48. | Love says the Oak Ridge team is using mass spectroscopy, gas chromatography and electronic noses for odor analysis.
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| 49. | Hurst and his research team used a mass spectrometer and liquid-gas chromatography equipment to detect traces of cocoa.
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| 50. | She then analyzed the chemical compounds using gas chromatography and found they were different for each type of caterpillar.
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