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Fig. 1 | Chemistry Central Journal

Fig. 1

From: Freeze-drying: an alternative method for the analysis of volatile organic compounds in the headspace of urine samples using solid phase micro-extraction coupled to gas chromatography - mass spectrometry

Fig. 1

Intensity of compounds present in the reference solution throughout the experiment. A stock of reference solution was prepared at the beginning of the experiment. A 2 ml sample of the reference solution was analysed on the same days that urine samples were processed. The intensities of reference compounds were normalized by their intensities detected on day 1

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BMC Chemistry

ISSN: 2661-801X

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