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羊水含水率高达98～99％,所含固体成分浓度低,故难以检测其红外线吸收光谱。即使对不同光谱法加以处理,也难以检测精确度很高的信号。因此把已知的微量资料检测法改良为红外线内部反射光(attenuated total reflection,ATR)法,通过 ATR 棱镜面作成独一水平光学装置保持羊水,开发了在其原来棱镜上经真空干燥检测的新方法。ATR 棱镜使用不溶于水的硒化锌结晶,应用本法首次成功地精确检测了羊水中的固体成分光谱。且羊水量只需60μl,检测时间包括真空干燥、计算、软盘整理,共需8分钟。获得的光谱中有10个比较清晰且可供分析的峰值,还可取到胎儿的各种情报。其中波长1,460cm~(-1)和830cm~(-1)的两个峰值,仅
Amniotic fluid moisture content as high as 98 ~ 99%, containing low concentrations of solid content, it is difficult to detect the infrared absorption spectrum. Even with different spectroscopic methods, it is difficult to detect highly accurate signals. Therefore, the known micro-data detection method was modified to the infrared internal reflection (ATTR) method, the ATR prism surface made of a single horizontal optical device to maintain amniotic fluid, developed in its original prism vacuum drying detection of new method. ATR prism using water-insoluble zinc selenide crystals, the application of this method for the first time successfully and accurately detected amniotic fluid in the solid component spectrum. And only 60μl of amniotic fluid, testing time, including vacuum drying, calculation, floppy disk finishing, a total of 8 minutes. There are 10 clear peaks in the spectrum available for analysis, as well as various information on the fetus. Among them, two peaks of 1,460cm -1 and 830cm -1 were observed