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光谱物理公司马萨诸塞州贝德福特激光分析部的一个小组已经证实,一种采用激光器的简单仪器能测定二氧化碳和其他化合物的同位素成份。按照激光分析部沃尔(D.L.Wall)的见解,测定~(13)GO_2 与常态的~(12)CO_2 的比率在许多应用场合有用,其中包括能帮助诊断新陈代谢和胃、肠等毛病的气息诊断仪,中性气体的探测,一些食品的质量检验,以及医学和农业研究中的非放射示踪剂研究等。这种系统的头部便是一只铅盐激光二极管,它能精确地调谐在 CO_2 两种同位素的吸收峰上。这种
A team of spectral physics firm Bedford, Mass.-based laser analysis department has confirmed that a simple laser-based instrument can measure the isotopic composition of carbon dioxide and other compounds. According to DLWall’s opinion, the determination of the ratio of ~ (13) GO_2 to normal ~ (12) CO_2 is useful in many applications, including the diagnosis of breath, which can help diagnose metabolic, stomach, intestine and other problems Instruments, detection of neutral gases, quality testing of some foods, and non-radiotracer studies in medical and agricultural research. The head of such a system is a lead-salt laser diode that can be precisely tuned to the absorption peaks of both CO 2 isotopes. This