PubMed · 72328
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M Seller. 1977-11-05. Dark-brown amniotic fluid.. https://doi.org/10.1016/s0140-6736(77)90930-8
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The concentrations of 13 major organic acids in normal human amniotic fluid have been determined by gas chromatography. Each acid showed a large range and an irregular frequency distribution.
Dispersion curves of the longitudinal relaxation T1 of protons in healthy amniotic fluid in a meconium solution are distinct at low Larmor frequencies (V0 less than 100 kHz). We are thus able to distinguish these fluids by T1 measurements in this range.
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