Leiberman J R, Molcho J, Alsheh N, Sasson F, Cohen A
Isr J Med Sci. 1981 Apr;17(4):266-70.
The intrinsic fluorescence of clear amniotic fluid from third-trimester pregnancy is reported. The fluorescence intensity peaked at 405 nm when excited by ultraviolet light in the range of 310 to 360 nm. All of the 33 samples tested fluoresced, and their emission spectrum had the same shape, varying only in magnitude. Changing sample temperature (20 to 50 C) and sample pH (7.2 to 7.7) had little effect on the emission spectrum. The same fluorescence, with higher intensity, was observed when some newborn urine was tested. The fluorescence of amniotic fluid may provide a new tool to determine fetal age, fetal organ maturation, and fetal distress.
报道了妊娠晚期清亮羊水的固有荧光。当在310至360nm范围内的紫外光激发时，荧光强度在405nm处达到峰值。所测试的33个样本均发出荧光，且它们的发射光谱形状相同，仅强度有所不同。改变样本温度（20至50℃）和样本pH值（7.2至7.7）对发射光谱影响很小。当测试一些新生儿尿液时，观察到了相同的荧光，但强度更高。羊水的荧光可能为确定胎儿年龄、胎儿器官成熟度和胎儿窘迫提供一种新工具。
