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N. N. Kulikova I. V. Mekhanikova E. P. Chebykin E. V. Vodneva O. A. Timoshkin A. N. Suturin 《Water Resources》2017,44(3):497-511
Mass-spectrometry with inductively coupled plasma was used to determine the element composition of 19 amphipod species, most of which are widespread in the stony littoral of Lake Baikal. Amphipod composition was found to be dominated by Ca > P ≥ S > K ≥ Na > Cl > Mg > Sr ≥ Br ≥ Si. The concentrations of all elements determined in amphipods is greater than the respective concentrations in water. The amphipods were found to concentrate P > Br > Cu > Zn > Cd to the greatest extent relative to the element composition of water and Br > P ≥ I > Ca > S > Cl ≥ As > Sr relative to that of the stone substrate. The concentrations of Cr, Mn, Fe, Co, Cu, Zn, As, Mo, Cd, Pb, and Hg in 2003–2006 in the amphipods of the stony littoral of Baikal was not greater than their concentrations in the amphipods from conventionally non-polluted or weakly polluted aquatic ecosystems. The obtained results can be used as background values in environmental monitoring. 相似文献
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Comparison of Synchrotron Radiation X-Ray Fluorescence with Conventional Techniques for the Analysis of Sedimentary Samples 总被引：3，自引：0，他引：3
Michael A. Phedorin Vladislav A. Bobrov Evgeny P. Chebykin Evgeny L. Goldberg Michael S. Melgunov Svetlana V. Filippova Konstantin V. Zolotarev 《Geostandards and Geoanalytical Research》2000,24(2):205-216
A comparison is made of elemental analyses of sediment samples (lake bottom sediments and sediments from the petroliferous Bazhenovka Formation) by five competitive methods (synchrotron radiation X-ray fluorescence (SR-XRF), INAA, ICP-MS, AAS and traditional XRF). The object of this study was to identify the most suitable analytical techniques for applications in sedimentary geochemistry. Advantages and shortcomings of the five techniques were considered with respect to applications related to studies of palaeo-climate changes recorded in sedimentary cores from Lake Baikal and the geochemical stratigraphy of the Bazhenovka Formation, which is rich in organic material. We have concluded that SR-XRF was the best technique for producing extensive analytical data series, from the point of view of its speed, ease of application, cost, non-destructive nature and sensitivity, which allowed for the simultaneous determination of more than twenty elements of geochemical interest in small samples of sediments. An additional benefit of the method was demonstrated when used for the independent certification of geological reference materials. International reference samples BIL-1 and SDO-1 were certified by means of this method without use of reference materials. Analyses were based on the physics of the theory of energy transport. 相似文献
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Firsova Alena D. Chebykin Eugene P. Kopyrina Liubov I. Rodionova Elena V. Chensky Dmitry A. Gubin Nikita A. Panov Vsevolod S. Pogodaeva Tatyana V. Bukin Yurij S. Suturin Alexandr N. Likhoshway Yelena V. 《Journal of Paleolimnology》2021,66(4):407-437
Journal of Paleolimnology - In this study, radiocarbon-dated geochemical and diatom records from Lake Vorota located within the informal meteorological ‘pole of cold’ of the northern... 相似文献
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N. N. Kulikova E. A. Volkova N. A. Bondarenko E. P. Chebykin E. V. Saibatalova O. A. Timoshkin A. N. Suturin 《Water Resources》2018,45(6):908-919
ICP-MS method was used to study the element composition of green algae Ulothrix zonata (F. Weber et Mohr) Kützing, sampled in the coastal zone of the Southern Baikal. Dominating in Ulothrix composition are S, Ca, P, Mg and microelements Fe, Al, Ti, Mn, Sr, Ba, Cu, Zn, La, Ce, As, Br, and Pb. The concentrations of all analyzed elements in alga thallomes is greater than the respective concentrations in coastal zone water. The dry mass of U. zonata accumulates more P, As, S, I, Br, Ni, Cd, Ca, and Mg than the stone substrate does. The effect of U. zonata on the formation of element composition of water medium in the coastal zone is demonstrated. 相似文献
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N.A. Onishchuk T.V. Khodzher E.P. Chebykin E.V. Chipanina 《Geography and Natural Resources》2009,30(4):345-349
Presented are the results from investigating the lead isotopic composition in atmospheric precipitation in the Baikal region and Primorski Krai. It is established that at three stations of the Baikal region, differing in their physical-geographical location and in the degree of anthropogenic influence, the isotopic ratios are similar to those for lead ores of Kazakhstan, the main supplier of lead to Russia. Atmospheric precipitation in Primorski Krai is intermittently influenced by the trans-boundary transport of atmospheric impurities from industrial areas of China. 相似文献
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Y/Ho Ratios in the Late Cenozoic Basalts from the Eastern Tuva, Russia: An ICP-MS Study with Enhanced Data Quality 总被引：1，自引：0，他引：1
Alexei V. Ivanov Sergei V. Rasskazov Evgeny P. Chebykin Margarita E. Markova Elena V. Saranina 《Geostandards and Geoanalytical Research》2000,24(2):197-204
A set of forty seven Late Cenozoic basaltic rocks from the Eastern Tuva (southern Siberia, Russia) have been studied by ICP-MS using In as an internal standard. Yttrium and Ho concentrations, determined along with other trace elements, varied systematically from one analytical run to another and covered the entire charge-and-radius-controlled field within the range 24 < Y/Ho < 34, so obscuring any geochemical interpretation. A correction procedure was therefore developed in which the Y/Ho ratios were recalculated using concentrations of these elements determined in international and in-house reference materials (BHVO-1, AGV-1, BIR-1 and U-94-5). Statistical analysis of the recalculated data set revealed two groups of samples not related by their genesis but rather by their respective analytical runs. Fourteen samples originally analysed in five different runs were then re-measured by the same instrument in peak-hopping mode using only specific mass peaks (m/z = 89, 115 and 165). All of these samples yielded Y/Ho ratios in a narrow range between 29 and 31, thus illustrating how analytical problems in the determination of Y and Ho by routine ICP-MS procedures can be overcome. Finally, a mean value of Y/Ho = 30.3 ± 1.1 (1s) was derived for the basaltic rocks of the Eastern Tuva. This is close to the value of 28.8 accepted for chondrites and for ocean island basalts. Despite the uniform Y/Ho ratio, the element concentrations in basaltic rocks from the Eastern Tuva show systematic enrichment in heavy rare earth elements and yttrium from the Miocene to the Quaternary. 相似文献
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The elemental composition of suspended particles in surface waters of Lake Baikal has been studied by ICP MS along a transect of the zone affected by the Selenga River. The amount of terrigenous suspension in water was estimated from Al content, which decreases in a saltatory manner along the transect: 6.5–8.3 km offshore it decreases by an order of magnitude; 11–14 km offshore, by other 20 times; in the pelagic zone it remains almost unchanged. During the study period (late June 2001), the distribution limit of suspension from the Selenga River in the lake’s surface waters lays 11–14 km offshore.It has been found that pelagic suspension is more than 20 times richer in Ca, P, Zn, Cu, Ni, Sn, Mo, Bi, S, and Cd than littoral one (6.5 km offshore) in the zone affected by the Selenga River. This is mainly due to fine suspension (<1.2 μm), which was considerably richer in Ca, P, Zn, Cu, Ni, Sn, Mo, Sb, and Cd than coarser ones in the river.Fine suspension in Lake Baikal, both in the zone affected by the river and in the pelagic zone, is considerably (2–35 times) richer in most elements, except for typical terrigenous ones, than river one. This suggests that element enrichment takes place in the lake, probably owing to bioaccumulation and chemisorption. These processes may be affected by additional factors, because fine suspension from the zone affected by the river differs significantly from pelagic one in elemental composition. 相似文献
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