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. Author manuscript; available in PMC: 2016 May 2.
Published in final edited form as: MAGMA. 2009 Sep 25;22(6):343–352. doi: 10.1007/s10334-009-0184-0

Fig. 1.

Fig. 1

500 MHz 1H MR spectra of the same amniotic fluid sample obtained using a a 4 mm HR-MAS probe and b a conventional 5 mm inverse probe. Both samples were 90% aqueous with 10% D2O added to provide a lock signal. For HR-MAS, the sample was vortexed and an aliquot was analyzed; for the inverse probe, the sample was centrifuged and the supernatant was analyzed