Measurement of mercury methylation in sediments by using enriched stable mercury isotopes combined with methylmercury determination by gas chromatography–inductively coupled plasma mass spectrometry

Fluxes of methylmercury to the water column of a drainage lake: The relative importance of internal and external sources

“…One reason is that it is not possible to quantitatively assay rates of either mercury methylation or demethylation in lakes and wetlands (Rudd 1995). State-of-the-art isotopic methods continue to be limited by the inability to determine the fraction of the added labeled substrate that is available to the methylating or demethylating bacteria (Hintelmann et al 1995).…”

Acoplamento cromatografia gasosa - espectrometria de absorção atômica em estudos de especiação: uma revisão

“…A maior parte dos sistemas visa o acoplamento direto da cromatografia, em linha, a técnicas de detecção diversas, como AAS, ICP-MS [10][11][12][13][14][15][16][17][18][19][20][21] , ICP-AES 10,22-29 , AFS30, MIP 10,21,[31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46] etc. Ou seja, os diferentes equipamentos relativos a essas técnicas analíticas tornam-se os detectores, postados à saída da coluna de separação.…”

Application of ultrafiltration and stable isotopic amendments to field studies of mercury partitioning to filterable carbon in lake water and overland runoff

“…This ICP-MS was fitted with a continuous flow injector analyzer system, and an inline gold amalgamation system that allows for rapid sample throughput and low-level detection. The method, modeled after the pioneering work of Hintelmann et al (1995) and Hintelmann and Evans (1997) the averaged native concentration, multiplied by the natural abundance of the isotope in question. DOC samples were collected in pre-ashed glass bottles, and stored dark in a cold room.…”