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We measured optical density of aqueous extracts of meconium and meconium stained amniotic
fluid at 390 nm, 405 nm, 420 nm, 435 nm, 450 nm by spectrophotometry.
We also applied the spectrophotometric method to the urine from 25 infants with clinical sign of
meconium aspiration and from normal infants.
The absorption band at 450 nm observed on the spectra of urine was estimated as... |
