Abstract—

The studies of the isotope ratios of earth-abundant stable elements by the classical and laser optical methods are reviewed. These methods have been actively developed in recent years. Supplementing the well-known mass-spectrometric and chromatographic techniques, they are in some respects simpler, more efficient, and not inferior in accuracy. Actually, the case in point is a new class of methods of spectral analysis for gases of complex composition, with enhanced requirements for the selectivity, accuracy, and dynamic range. The technique and results of studying the isotope ratios are discussed. Examples of real applications of these methods are presented, which demonstrate their efficiency in the fields of environmental protection, geophysics, physics of plasma, power engineering, commercial production monitoring, and medical diagnostics.

中文翻译：

---

天然和技术介质同位素组成诊断的光学方法：综述

摘要—

综述了经典和激光光学方法对地球稳定元素同位素比的研究。近年来，已经积极地开发了这些方法。作为对众所周知的质谱和色谱技术的补充，它们在某些方面更简单，更有效，并且准确性也不逊色。实际上，这种情况就是对复杂成分的气体进行光谱分析的一类新方法，对选择性，准确性和动态范围的要求也有所提高。讨论了研究同位素比的技术和结果。给出了这些方法的实际应用示例，这些示例证明了它们在环境保护，地球物理学，等离子物理学，动力工程，商业生产监控和医疗诊断领域的效率。