All Stories

  1. Trace element distribution and pollution status of surface sediments in lakes impacted by volcanic activity

    Article • Journal of Soils and Sediments, January 2023, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  2. Calibration Approach for Gaseous Oxidized Mercury Based on Nonthermal Plasma Oxidation of Elemental Mercury

    Article • Analytical Chemistry, June 2022, American Chemical Society (ACS)

    Dr Sergio Ribeiro Guevara

  3. An Arsenic-76 radiotracer to study the routes of assimilation, hemolymph distribution, and tissue inventories in the bioindicator organism Pomacea canaliculata

    Article • The Science of The Total Environment, April 2022, Elsevier

    Dr Sergio Ribeiro Guevara

  4. Macro-elements K, Na, Cl, Mg, and Ca in body tissues of false killer whales (Pseudorca crassidens) from the Southern Ocean

    Article • Polar Biology, February 2022, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  5. Mercury transfer in coastal and oceanic food webs from the Southwest Atlantic Ocean

    Article • Marine Pollution Bulletin, February 2022, Elsevier

    Dr Sergio Ribeiro Guevara

  6. Hg2+ incorporation in Andean Patagonian ultraoligotrophic lakes: insights into the role of pelagic protists

    Article • Limnology and Freshwater Biology, January 2022, Limnological Institute SB RAS

    Dr Sergio Ribeiro Guevara

  7. Mercury in Aquatic Systems of North Patagonia (Argentina): Sources, Processes, and Trophic Transfer

    Article • January 2022, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  8. Behavior of KCl sorbent traps and KCl trapping solutions used for atmospheric mercury speciation: stability and specificity

    Article • Atmospheric Measurement Techniques, October 2021, Copernicus GmbH

    Dr Sergio Ribeiro Guevara

  9. Analysis of the volcanic products from Volcán Calbuco.

    Article • Journal of Volcanology and Geothermal Research, September 2021, Elsevier

    Dr Sergio Ribeiro Guevara

  10. Behaviour of KCl sorbent traps and KCl trapping solutions used for atmospheric mercury speciation: stability and specificity

    Article • June 2021, Copernicus GmbH

    Dr Sergio Ribeiro Guevara

  11. Supplementary material to "Behaviour of KCl sorbent traps and KCl trapping solutions used for atmospheric mercury speciation: stability and specificity"

    Article • June 2021, Copernicus GmbH

    Dr Sergio Ribeiro Guevara

  12. Validating an Evaporative Calibrator for Gaseous Oxidized Mercury

    Article • Sensors, April 2021, MDPI AG

    Dr Sergio Ribeiro Guevara

  13. Trace elements in subantarctic false killer whale (Pseudorca crassidens) tissues, including the skin as an offshore bioindicator

    Article • Environmental Science and Pollution Research, February 2021, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  14. Geochemical and mineralogical characterization of sediments from Lake Futalaufquen (42.8°S, Andean Patagonia) to evaluate their potential as paleoclimatic proxies

    Article • Quaternary Research, June 2020, Cambridge University Press

    Dr Sergio Ribeiro Guevara

  15. Mercury is assesed by in an region with volcanic activity

    Article • Atmospheric Pollution Research, December 2019, Elsevier

    Dr Sergio Ribeiro Guevara

  16. Spatiotemporal structuring factors in the Chironomidae larvae (Insecta: Diptera) assemblages of an ultraoligotrophic lake from northern Patagonia Andean range: implications for paleolimnological interpretations

    Article • Hydrobiologia, October 2019, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  17. Stranded false killer whales, Pseudorca crassidens, in Southern South America reveal potentially dangerous silver concentrations

    Article • Marine Pollution Bulletin, August 2019, Elsevier

    Dr Sergio Ribeiro Guevara

  18. A multi-year record of atmospheric mercury species at a background mountain station in Andean Patagonia (Argentina): Temporal trends and meteorological influence

    Article • Atmospheric Environment, July 2019, Elsevier

    Dr Sergio Ribeiro Guevara

  19. Response of Chironomidae to environmental disturbances in a high mountain lake in Patagonia during the last millennium – Corrigendum

    Article • Quaternary Research, May 2019, Cambridge University Press

    Dr Sergio Ribeiro Guevara

  20. The microbial mercury link in oligotrophic lakes: Bioaccumulation by picocyanobacteria in natural gradients of dissolved organic matter

    Article • Chemosphere, May 2019, Elsevier

    Dr Sergio Ribeiro Guevara

  21. Use of chironomids for past environment research

    Article • Quaternary Research, April 2019, Cambridge University Press

    Dr Sergio Ribeiro Guevara

  22. Bromine as indicator of source of lacustrine sedimentary organic matter in paleolimnological studies

    Article • Quaternary Research, March 2019, Cambridge University Press

    Dr Sergio Ribeiro Guevara

  23. Arsenic accumulation in top predator lake fish

    Article • Ecotoxicology and Environmental Safety, January 2019, Elsevier

    Dr Sergio Ribeiro Guevara

  24. Mercury levels in false killer whales stranded in Southern Chile

    Article • Chemosphere, May 2018, Elsevier

    Dr Sergio Ribeiro Guevara

  25. A study of mercury accumulation in plankton using a radiotracer

    Article • Chemosphere, May 2018, Elsevier

    Dr Sergio Ribeiro Guevara

  26. Bioindication of mercury, arsenic and uranium in the apple snail

    Article • Chemosphere, April 2018, Elsevier

    Dr Sergio Ribeiro Guevara

  27. An study on Zinc contents in organisms from a ultraoligotrophic lake

    Article • Environmental Science and Pollution Research, March 2018, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  28. Bioaccumulation of total mercury and methylmercury in the food web of a deep oligotrophic lake

    Article • The Science of The Total Environment, January 2018, Elsevier

    Dr Sergio Ribeiro Guevara

  29. Mercury transformations in coastal waters

    Article • Marine Chemistry, January 2018, Elsevier

    Dr Sergio Ribeiro Guevara

  30. Mercury in an Andean Patagonia fresh water system

    Article • Chemosphere, January 2018, Elsevier

    Dr Sergio Ribeiro Guevara

  31. Silver in a lacustrine systems by analyzing chironomids

    Article • Environmental Science and Pollution Research, November 2017, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  32. Silver in Lake Nahuel Huapi ecosystems after shift in photographic processing from film to digital

    Article • Environmental Pollution, April 2017, Elsevier

    Dr Sergio Ribeiro Guevara

  33. Mercury contamination caused by a chloralkali production facility in Bosnia and Herzegovina

    Article • Analytical Letters, March 2017, Taylor & Francis

    Dr Sergio Ribeiro Guevara

  34. Lake El Toro (Patagonia): the hydrologic history in the past 700 yr from a sedimentary sequence

    Article • Quaternary Research, March 2017, Cambridge University Press

    Dr Sergio Ribeiro Guevara

  35. Records of atmospheric mercury in Patagonia

    Article • Atmospheric Chemistry and Physics Discussions, January 2017, Copernicus GmbH

    Dr Sergio Ribeiro Guevara

  36. Mercury and selenium trophodynamics in a large lake in Patagonia

    Article • Chemosphere, January 2017, Elsevier

    Dr Sergio Ribeiro Guevara

  37. Mercury methylation in marine sediment from the Gulf of Trieste, Adriatic Sea

    Article • Geomicrobiology Journal, October 2016, Taylor & Francis

    Dr Sergio Ribeiro Guevara

  38. Chironomids as indicators of natural and human impacts in paleolimnological research in Patagonia

    Article • Quaternary Research, September 2016, Elsevier

    Dr Sergio Ribeiro Guevara

  39. Hepatic and renal metallothionein concentrations in Commerson's dolphins

    Article • Marine Pollution Bulletin, July 2016, Elsevier

    Dr Sergio Ribeiro Guevara

  40. Heavy metals in riparian vegetation from Northern Patagonia Andean Range

    Article • Environmental Science and Pollution Research, June 2016, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  41. Elemental concentrations in skin and internal tissues of Commerson’s dolphins

    Article • Polar Biology, May 2016, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  42. Records of mercury in southern latitudes over 1600 years: Lake Futalaufquen, Northern Patagonia

    Article • The Science of The Total Environment, May 2016, Elsevier

    Dr Sergio Ribeiro Guevara

  43. New tephra records in northern Patagonia

    Article • Journal of South American Earth Sciences, March 2016, Elsevier

    Dr Sergio Ribeiro Guevara

  44. Natural arsenic in deep oligotrophic Lake Nahuel Huapi

    Article • Chemosphere, February 2016, Elsevier

    Dr Sergio Ribeiro Guevara

  45. Rare earth elements in quartz rich geological samples

    Article • Applied Radiation and Isotopes, January 2016, Elsevier

    Dr Sergio Ribeiro Guevara

  46. Certification of Au concentration in Al–0.1% Au alloy

    Article • Microchemical Journal, January 2016, Elsevier

    Dr Sergio Ribeiro Guevara

  47. Dolphins skin as mercury bioindicator

    Article • Chemosphere, November 2015, Elsevier

    Dr Sergio Ribeiro Guevara

  48. Ultraoligotrophic Lake Nahuel Huapi trophic structure

    Article • Journal of Great Lakes Research, September 2015, Elsevier

    Dr Sergio Ribeiro Guevara

  49. Mercury uptake in plankton from oligotrophic lakes

    Article • The Science of The Total Environment, October 2014, Elsevier

    Dr Sergio Ribeiro Guevara

  50. High mercury in plankton from an ultraoligotrophic lake

    Article • Ecotoxicology, May 2014, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  51. Tephras from volcanoes Calbuco (1961), Chaitén (2008) and Cordón Caulle Complex (1960 and 2011)

    Article • Journal of South American Earth Sciences, January 2014, Elsevier

    Dr Sergio Ribeiro Guevara

  52. Mercury in air in Europe, South America, South Africa and China

    Article • Environmental Geochemistry and Health, December 2013, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  53. Mercury and dissolved organic matter in oligotrophic lakes

    Article • Journal of Environmental Sciences, October 2013, Elsevier

    Dr Sergio Ribeiro Guevara

  54. Mercury and selenium in the food web of a oligotrophic lake from Patagonia

    Article • The Science of The Total Environment, June 2013, Elsevier

    Dr Sergio Ribeiro Guevara

  55. Mercury removal from FGD

    Article • Fuel, May 2013, Elsevier

    Dr Sergio Ribeiro Guevara

  56. Food web structure in an oligotrophic lake from Patagonia

    Article • Limnologica, March 2013, Elsevier

    Dr Sergio Ribeiro Guevara

  57. Monte Carlo for gamma-ray self-shielding corrections

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, March 2013, Elsevier

    Dr Sergio Ribeiro Guevara

  58. Mercury preservation in water samples

    Article • Analytical Methods, January 2013, Royal Society of Chemistry

    Dr Sergio Ribeiro Guevara

  59. Mercury uptake in picocyanobacteria in natural lake water

    Article • E3S Web of Conferences, January 2013, EDP Sciences

    Dr Sergio Ribeiro Guevara

  60. Mercury uptake by plankton in oligotrophic lakes

    Article • E3S Web of Conferences, January 2013, EDP Sciences

    Dr Sergio Ribeiro Guevara

  61. Mercury in sediments from the Adriatic Sea

    Article • E3S Web of Conferences, January 2013, EDP Sciences

    Dr Sergio Ribeiro Guevara

  62. Mercury and Selenium in Commerson’s Dolphins

    Article • Biological Trace Element Research, December 2012, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  63. Heavy metals in dolphins from the South Atlantic

    Article • Environmental Monitoring and Assessment, November 2012, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  64. Bioindication of volatile elements emission by the Puyehue–Cordón Caulle (North Patagonia) volcanic event in 2011

    Article • Chemosphere, July 2012, Elsevier

    Dr Sergio Ribeiro Guevara

  65. Arsenic, cobalt and chromium food web biodilution in a Patagonia mountain lake

    Article • Ecotoxicology and Environmental Safety, July 2012, Elsevier

    Dr Sergio Ribeiro Guevara

  66. Influence of precipitation, landscape and hydrogeomorphic lake features on pelagic allochthonous indicators in two connected ultraoligotrophic lakes of North Patagonia

    Article • The Science of The Total Environment, June 2012, Elsevier

    Dr Sergio Ribeiro Guevara

  67. Heavy metals uptake by apple snails

    Article • Environmental Science and Pollution Research, March 2012, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  68. Mercury methylation and reduction potentials in marine water: An improved methodology using 197Hg radiotracer

    Article • Applied Radiation and Isotopes, January 2012, Elsevier

    Dr Sergio Ribeiro Guevara

  69. Mercury in the biotic compartments of Northwest Patagonia lakes, Argentina

    Article • Chemosphere, June 2011, Elsevier

    Dr Sergio Ribeiro Guevara

  70. Strong reduction of V4+amount in vanadium oxide/hexadecylamine nanotubes by doping with Co2+and Ni2+ions: Electron paramagnetic resonance and magnetic studies

    Article • Journal of Applied Physics, May 2011, American Institute of Physics

    Dr Sergio Ribeiro Guevara

  71. Trophodynamics and distribution of silver in a Patagonia Mountain lake

    Article • Chemosphere, April 2011, Elsevier

    Dr Sergio Ribeiro Guevara

  72. Mercury in an ultraoligotrophic North Patagonian Andean lake (Argentina): Concentration patterns in different components of the water column

    Article • Journal of Environmental Sciences, August 2010, Elsevier

    Dr Sergio Ribeiro Guevara

  73. Sediment records of highly variable mercury inputs to mountain lakes in Patagonia during the past millennium

    Article • Atmospheric Chemistry and Physics, April 2010, Copernicus GmbH

    Dr Sergio Ribeiro Guevara

  74. Tephrochronology of recent events in the Andean Range (northern Patagonia)

    Article • Journal of Quaternary Science, April 2010, Wiley

    Dr Sergio Ribeiro Guevara

  75. Trace Elements in Plankton, Benthic Organisms, and Forage Fish of Lake Moreno, Northern Patagonia, Argentina

    Article • Water Air & Soil Pollution, February 2010, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  76. Sediment records of highly variable mercury inputs to mountain lakes in Patagonia during the past millennium

    Article • Atmospheric Chemistry and Physics Discussions, December 2009, Copernicus GmbH

    Dr Sergio Ribeiro Guevara

  77. Benthic methylmercury production in lacustrine ecosystems of Nahuel Huapi National Park, Patagonia, Argentina

    Article • Chemosphere, October 2009, Elsevier

    Dr Sergio Ribeiro Guevara

  78. Palaeolimnology of Lake Hess (Patagonia, Argentina): multi-proxy analyses of short sediment cores

    Article • Hydrobiologia, May 2009, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  79. Comment on: “Impact of the 1960 major subduction earthquake in Northern Patagonia (Chile, Argentina)” Quartenary Int. 158 (2006) 58–71

    Article • Quaternary International, February 2009, Elsevier

    Dr Sergio Ribeiro Guevara

  80. Puna (Argentina) and northern Chile Ordovician basic magmatism: A contribution to the tectonic setting

    Article • Journal of South American Earth Sciences, February 2009, Elsevier

    Dr Sergio Ribeiro Guevara

  81. Palaeolimnology of Lake Hess (Patagonia, Argentina): multi-proxy analyses of short sediment cores

    Article • January 2009, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  82. Source identification of volcanic ashes by geochemical analysis of well preserved lacustrine tephras in Nahuel Huapi National Park

    Article • Applied Radiation and Isotopes, October 2008, Elsevier

    Dr Sergio Ribeiro Guevara

  83. Iron oxide nanoparticles and VOx/Hexadecylamine nanotubes composite

    Article • Journal of Magnetism and Magnetic Materials, July 2008, Elsevier

    Marcos Malta, Dr Sergio Ribeiro Guevara

  84. Methylmercury production in the water column of an ultraoligotrophic lake of Northern Patagonia, Argentina

    Article • Chemosphere, June 2008, Elsevier

    Dr Sergio Ribeiro Guevara

  85. Measurement of Neutron Capture Resonance Integrals on Bromine Isotopes

    Article • Nuclear Science and Engineering, June 2008, American Nuclear Society (ANS)

    Dr Sergio Ribeiro Guevara

  86. Validation of methodology for determination of the mercury methylation potential in sediments using radiotracers

    Article • Analytical and Bioanalytical Chemistry, March 2008, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  87. Selenium and Mercury in Native and Introduced Fish Species of Patagonian Lakes, Argentina

    Article • Biological Trace Element Research, January 2008, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  88. Pb-210 dating in Patagonia

    Article • The Science of The Total Environment, October 2007, Elsevier

    Dr Sergio Ribeiro Guevara

  89. Magnetic characterization of vanadium oxide/polyaniline nanotubes

    Article • Applied Surface Science, October 2007, Elsevier

    Marcos Malta, Dr Sergio Ribeiro Guevara

  90. Influence of Ni doping on vanadium oxide/hexadecylamine multiwall nanotubes

    Article • Physica B Condensed Matter, September 2007, Elsevier

    Marcos Malta, Dr Sergio Ribeiro Guevara

  91. Methodological considerations regarding the use of inorganic 197Hg(II) radiotracer to assess mercury methylation potential rates in lake sediment

    Article • Applied Radiation and Isotopes, September 2007, Elsevier

    Dr Sergio Ribeiro Guevara

  92. Averaged cross sections for the reactions 68Zn(n,p)68gCu and 68Zn(n,p)68mCu for a 235U fission neutron spectrum

    Article • Applied Radiation and Isotopes, July 2007, Elsevier

    Dr Sergio Ribeiro Guevara

  93. Hg-197 radiotracer in environmental studies

    Article • Analytical and Bioanalytical Chemistry, January 2007, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  94. Fission neutron spectrum averaged cross sections for threshold reactions on arsenic

    Article • Journal of Radioanalytical and Nuclear Chemistry, December 2006, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  95. Geochemical characterization of volcanic ashes from recent events in Northern Patagonia Andean Range by INAA

    Article • Journal of Radioanalytical and Nuclear Chemistry, December 2006, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  96. Trace Elements as Fingerprint of Lake of Provenance and of Species of Some Native and Exotic Fish of Northern Patagonian Lakes

    Article • Biological Trace Element Research, January 2006, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  97. Rb-Cs Ratio as an Indicator of Fish Diet in Lakes of the Patagonia, Argentina

    Article • Biological Trace Element Research, January 2006, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  98. Consequences of the Elimination of Old Leaves upon Spring Phenological Events and the New Leaves Nutrient Concentration in a Wintergreen Woody Species in the Southern Hemisphere

    Article • Plant Ecology, November 2005, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  99. Determination of nuclear constants of reactions induced on zinc by short irradiations with the epithermal and fast components of a reactor neutron spectrum

    Article • Radiochimica Acta, September 2005, De Gruyter

    Dr Sergio Ribeiro Guevara

  100. Heavy metal inputs in Northern Patagonia lakes from short sediment core analysis

    Article • Journal of Radioanalytical and Nuclear Chemistry, August 2005, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  101. Provenance analysis and tectonic setting of late Neoproterozoic metasedimentary successions in NW Argentina

    Article • Journal of South American Earth Sciences, June 2005, Elsevier

    Dr Sergio Ribeiro Guevara

  102. Silver contamination on abiotic and biotic compartments of Nahuel Huapi National Park lakes, Patagonia, Argentina

    Article • The Science of The Total Environment, January 2005, Elsevier

    Dr Sergio Ribeiro Guevara

  103. Environmental changes from sediment records

    Article • Aquatic Conservation Marine and Freshwater Ecosystems, November 2004, Wiley

    Dr Sergio Ribeiro Guevara

  104. Mercury in lichens of Nahuel Huapi National Park, Patagonia, Argentina

    Article • Journal of Radioanalytical and Nuclear Chemistry, January 2004, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  105. Heavy Metal and Other Trace Elements in Native Mussel Diplodon chilensis from Northern Patagonia Lakes, Argentina

    Article • Biological Trace Element Research, January 2004, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  106. 210Pb fluxes in sediment layers sampled from Northern Patagonia lakes

    Article • Journal of Radioanalytical and Nuclear Chemistry, December 2003, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  107. Heavy metals in the vicinity of a chlor-alkali factory in the upper Negro River ecosystem, Northern Patagonia, Argentina

    Article • The Science of The Total Environment, January 2003, Elsevier

    Dr Sergio Ribeiro Guevara

  108. Fission-neutron averaged cross sections for reactor dosimetry

    Article • Journal of Radioanalytical and Nuclear Chemistry, January 2003, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  109. Article • Journal of Radioanalytical and Nuclear Chemistry, January 2003, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  110. Geochemical variability since the Late Pleistocene in Lake Mascardi sediments, northern Patagonia, Argentina

    Article • Journal of South American Earth Sciences, December 2002, Elsevier

    Dr Sergio Ribeiro Guevara

  111. 137Cs fall out historical records and profile measurements

    Article • Journal of Radioanalytical and Nuclear Chemistry, January 2002, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  112. Article • Journal of Radioanalytical and Nuclear Chemistry, January 2002, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  113. Article • Water Air & Soil Pollution, January 2002, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  114. Threshold Reaction Cross Sections of Nickel Isotopes, Averaged Over a235U Fission Neutron Spectrum

    Article • Nuclear Science and Engineering, September 2001, Taylor & Francis

    Dr Sergio Ribeiro Guevara

  115. Article • Journal of Radioanalytical and Nuclear Chemistry, January 2000, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  116. Geochemical tracers of source rocks in a Cretaceous to Quaternary sedimentary sequence (Eastern Sierras Pampeanas, Argentina)

    Article • Journal of South American Earth Sciences, September 1999, Elsevier

    Dr Sergio Ribeiro Guevara

  117. Determination of the fission averaged cross sections of some threshold reactions induced on chlorine, potassium, and calcium, and their role in the development of self-validated methods of neutron activation analysis

    Article • Journal of Radioanalytical and Nuclear Chemistry, July 1999, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  118. Magnetization and electron paramagnetic resonance of Co clusters embedded in Ag nanoparticles

    Article • Journal of Physics Condensed Matter, January 1999, Institute of Physics Publishing

    Dr Sergio Ribeiro Guevara

  119. Neutron activation analysis of Cuban soils

    Article • Journal of Radioanalytical and Nuclear Chemistry, November 1998, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  120. Characterization of Loma Venturilla pegmatites using nuclear techniques

    Article • Journal of Radioanalytical and Nuclear Chemistry, May 1998, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  121. Characterization of the rhyolitic rocks from the Lela ore body using neutron activation analysis

    Article • Journal of Radioanalytical and Nuclear Chemistry, May 1998, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  122. Experimental and Calculated Scandium Threshold Reaction Cross Sections Averaged over a235U Fission Neutron Spectrum

    Article • Nuclear Science and Engineering, November 1997, Taylor & Francis

    Dr Sergio Ribeiro Guevara

  123. Measurement of the50Ti(n,α)47Ca reaction cross section averaged over a235U fission neutron spectrum

    Article • Journal of Radioanalytical and Nuclear Chemistry, October 1997, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  124. Neutron activation analysis of radiopharmaceuticals

    Article • Journal of Radioanalytical and Nuclear Chemistry, September 1997, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  125. Determination of selenium in nickel and cobalt concentrates applying epithermal neutron activation analysis

    Article • Journal of Radioanalytical and Nuclear Chemistry, September 1997, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  126. Analytical and statistical analysis of elemental composition of lichens

    Article • Journal of Radioanalytical and Nuclear Chemistry, August 1997, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  127. Elemental composition of lichens at Nahuel Huapi National Park, Patagonia, Argentina

    Article • Journal of Radioanalytical and Nuclear Chemistry, December 1995, Springer Science + Business Media

    Dr Sergio Ribeiro Guevara

  128. Rare earth geochemistry in sediments of the Upper Manso River Basin, Río Negro, Argentina

    Article • Earth and Planetary Science Letters, June 1995, Elsevier

    Dr Sergio Ribeiro Guevara

  129. Elemental analysis of a concrete sample by capture gamma rays with a radioisotope neutron source

    Article • Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms, March 1995, Elsevier

    Dr Sergio Ribeiro Guevara

  130. The crater lake of Copahue volcano (Argentina)

    Article • Geological Society

    Dr Sergio Ribeiro Guevara