Sbarra A J, Michlewitz H, Selvaraj R J, Mitchell G W, Cetrulo C L, Kelley E C, Kennedy J L, Herschel M J, Paul B B, Louis F
Obstet Gynecol. 1977 Dec;50(6):723-4.
A simple and rapid test that correlates with L/S ratios has been developed. By centrifuging fresh, unfrozen amniotic fluids at 200g for 10 minutes and measuring the optical density at at 650 nm, correlation with L/S ratios is obtained. Optical density readings of 0.15 or greater correlate 100% with L/S ratios of 2.0 or greater. Optical readings below 0.15 correlate 94% with L/S ratios below 2.0.
一种与卵磷脂/鞘磷脂（L/S）比值相关的简单快速检测方法已经研发出来。通过将新鲜、未冷冻的羊水以200g离心10分钟，并在650nm处测量光密度，可得到与L/S比值的相关性。光密度读数为0.15或更高时与2.0或更高的L/S比值的相关性为100%。光密度读数低于0.15时与低于2.0的L/S比值的相关性为94%。
