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• W1539898041 abstract "From the time selenium was discovered in 1817 by Berzelius and Gahn [1] until the recognition in the mid 1950s of its toxicity and, subsequently, its essentiality for animal well-being, a large number of its properties have been elucidated. This element ranks seventieth in abundance among the elements and constitutes approximately 105% of the earth's crust. Selenium is located in the VIa Group of the Periodic Table between sulphur and tellurium, and its chemical and physical properties are between these elements, i.e. intermediate between nonmetals and the metals, although similarity in behaviour of selenium and sulphur is more pronounced than that of selenium and tellurium. Its atomic number is 34 and its mass of 78.96 results from the six natural isotopes which exist under normal conditions 74Se (0.87%), 76Se (9.02%), 77Se (7.58%), 78Se (23.52%), 80Se (49.82%) and 82Se (9.19%). Other artificial short-lived man-made isotopes such as 75Se, 77Se are utilized in neutron activation and radiology [2]. Selenium has a melting point of 217 °C and a boiling point of 685 °C. Like sulphur it can exist in three allotropic forms: a gray or “metallic”,thermodynamically stable, hexagonal form; a red monoclinic form; and a vitreous amorphous form. Selenium is mainly found in metal sulphide deposits, mostly of the metals Cu, Zn, Ag, Hg, and Pb and is obtained industrially as a by-product of the processing of these elements. It is mainly used in the electrical and electronic (23%), rubber, plastics and lubricants (13%), ceramics and glass 27%) and other chemical industries [3], Table 1. Selenium pollution is caused by these industries and by fossil fuel combustion which releases the element into the atmosphere. Analytical methodologies and applications for the determination of total selenium at trace level have been developed and used extensively in the last thirty years. The reason for determining selenium are multiple: a) the long established selenium poisoning of domestic animals foraging on seleniferous plants, b) disorders in humans and animals resulting from selenium deficiencies and excesses, c) the nutritional essentiality of the element, d) the protective effect of selenium against the toxicity of the metals such as Hg and As, e) the metabolic interaction between selenium and vitamin E and other antioxidants and f) the reported carcinogenicity, anticarcinogenicity, antimutagenicity and anticlastogenicity and its effect on dietary intake of selenium [4] (Fig.l). Table 1: Industrial uses of different Se compounds (adapted from ref. [3]) It is now well known that it is the chemical form of elements rather than their concentration which determines their role in the living organism. This is particularly so for elements such as, Se, Hg, etc., which exist in many different forms and oxidation states. Natural waters, sediments and air are the most commonly studied environmental media. Robberecht and Van Grieken [5] have extensively reviewed the literature on total selenium in natural waters of river (content 0.016-20 ng.l1), lake (0.1-1.85ng.11), open ocean (0.025-0.2ng.11)and coastal or harbour environments, but an exhaustive review of selenium species in environmental samples has not yet been published." @default.
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• W1539898041 date "1995-01-01" @default.
• W1539898041 modified "2023-09-30" @default.
• W1539898041 title "10. Selenium speciation analyses in water and sediment matrices" @default.
• W1539898041 cites W106984163 @default.
• W1539898041 cites W1590971456 @default.
• W1539898041 cites W1655282285 @default.
• W1539898041 cites W1963518565 @default.
• W1539898041 cites W1964611386 @default.
• W1539898041 cites W1975094509 @default.
• W1539898041 cites W1975308311 @default.
• W1539898041 cites W1978623351 @default.
• W1539898041 cites W1978845745 @default.
• W1539898041 cites W1978888537 @default.
• W1539898041 cites W1981549225 @default.
• W1539898041 cites W1981853689 @default.
• W1539898041 cites W1982956542 @default.
• W1539898041 cites W1982979535 @default.
• W1539898041 cites W1983674204 @default.
• W1539898041 cites W1983685654 @default.
• W1539898041 cites W1983895856 @default.
• W1539898041 cites W1984088749 @default.
• W1539898041 cites W1985508207 @default.
• W1539898041 cites W1988951322 @default.
• W1539898041 cites W1991270016 @default.
• W1539898041 cites W1992370462 @default.
• W1539898041 cites W1992685159 @default.
• W1539898041 cites W1996379459 @default.
• W1539898041 cites W1997153750 @default.
• W1539898041 cites W1998672021 @default.
• W1539898041 cites W1999925519 @default.
• W1539898041 cites W2001324484 @default.
• W1539898041 cites W2003846773 @default.
• W1539898041 cites W2005499209 @default.
• W1539898041 cites W2006723666 @default.
• W1539898041 cites W2007762059 @default.
• W1539898041 cites W2009939372 @default.
• W1539898041 cites W2013781907 @default.
• W1539898041 cites W2022695449 @default.
• W1539898041 cites W2029279274 @default.
• W1539898041 cites W2032207581 @default.
• W1539898041 cites W2034646568 @default.
• W1539898041 cites W2034758455 @default.
• W1539898041 cites W2035620960 @default.
• W1539898041 cites W2036492678 @default.
• W1539898041 cites W2036788540 @default.
• W1539898041 cites W2040782198 @default.
• W1539898041 cites W2044900514 @default.
• W1539898041 cites W2045572202 @default.
• W1539898041 cites W2046123793 @default.
• W1539898041 cites W2049470429 @default.
• W1539898041 cites W2051423026 @default.
• W1539898041 cites W2051723136 @default.
• W1539898041 cites W2055061560 @default.
• W1539898041 cites W2055468643 @default.
• W1539898041 cites W2057451625 @default.
• W1539898041 cites W2057952835 @default.
• W1539898041 cites W2058791546 @default.
• W1539898041 cites W2061310207 @default.
• W1539898041 cites W2063676148 @default.
• W1539898041 cites W2063736416 @default.
• W1539898041 cites W2063964617 @default.
• W1539898041 cites W2066353573 @default.
• W1539898041 cites W2068797519 @default.
• W1539898041 cites W2071262067 @default.
• W1539898041 cites W2071502524 @default.
• W1539898041 cites W2077599613 @default.
• W1539898041 cites W2080308383 @default.
• W1539898041 cites W2088695132 @default.
• W1539898041 cites W2091202236 @default.
• W1539898041 cites W2091744485 @default.
• W1539898041 cites W2092173302 @default.
• W1539898041 cites W2093085079 @default.
• W1539898041 cites W2094769907 @default.
• W1539898041 cites W2124775412 @default.
• W1539898041 cites W2127653651 @default.
• W1539898041 cites W2132459170 @default.
• W1539898041 cites W2332816515 @default.
• W1539898041 cites W41333916 @default.
• W1539898041 cites W4245683629 @default.
• W1539898041 doi "https://doi.org/10.1016/s0167-9244(06)80011-9" @default.
• W1539898041 hasPublicationYear "1995" @default.
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