Isotope Variations of Chlorates and Perchlorates in the Environment
摘要
It is only realised since about 2000 that perchlorate is a naturally occurring anion outside the Atacama desert in Chile (see e.g. DasGupta et al. 2005; Parker et al. 2008). Interestingly this knowledge developed in the same period when the first methods were developed to analyse the stable chlorine isotope compositions of perchlorates (Ader et al. 2001; Sturchio et al. 2003). The analytical methods to analyse the chlorine isotope compositions were quickly followed by methods to analyse the oxygen isotope composition of perchlorates as well (Bao and Gu 2004; Böhlke et al. 2005).