| 11. | Ethylene glycol in biological fluids can be determined by gas chromatography.
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| 12. | HPLC is used for nonvolatile mixtures that would not be suitable for gas chromatography.
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| 13. | Back in the lab, he analyzed the substance on a gas chromatography mass spectrometer.
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| 14. | To find steroid traces in urine, scientists use gas chromatography and mass spectrometry testing.
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| 15. | Also, gas chromatography "'seems "'much more complicated than paper chromatography.
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| 16. | Gas chromatography and mid-infrared spectroscopy are other methods in use.
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| 17. | Using gas chromatography, the quantity of ethylene they emitted can also easily be measured.
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| 18. | Gas chromatography / mass spectrometry ( GC / MS ) is the recommended confirmatory method.
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| 19. | Martin later worked on gas chromatography, which uses a porous solid to separate chemical vapors.
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| 20. | GC-MS ( Gas Chromatography-Mass Spectroscopy ) is generally considered the gold standard for forensic analysis.
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