Abstract
In order to obtain a well understanding of the toxicity and ecological effects of trace elements in the environment, it is necessary to determine not only the total amount, but also their existing species. Speciation analysis has become increasingly important in making risk assessments of toxic elements since the toxicity and bioavailability strongly depend on their chemical forms. Effective separation of different species in combination with highly sensitive detectors to quantify these particular species is indispensable to meet this requirement. In this paper, we present the recent progresses on the speciation analysis of trace arsenic, mercury, selenium and antimony in environmental and biological samples with an emphasis on the separation and detection techniques, especially the recent applications of high performance liquid chromatography (HPLC) hyphenated to atomic spectrometry or mass spectrometry.
Highlights
IntroductionAs important components of the environment, play crucial roles in the functioning of life
Trace elements, as important components of the environment, play crucial roles in the functioning of life
Hg was measured after the tissues were digested in either formic acid or tetramethylammonium hydroxide (TMAH) following the reduction of both species by exposure the solution to UV irradiation, during which MeHg was selectively quantitated by adding of 10% v/v acetic acid into TMAH solution
Summary
As important components of the environment, play crucial roles in the functioning of life. Of some unusual (arsenolipids) are mainly found in fish oils, fish liver, sashimi tuna, algae, et al. chemical species in biosamples or other complex samples probably exist. Are mainly found in fish oils, fish liver, sashimi tuna, algae, et al. some unusual tetramethylarsonium ion (TETRA), glyceryl phosphorylarsenocholine (GPAsC), and dimethylchemical species in biosamples or other complex samples probably exist. Even though several reviews have been dedicated to the speciation analysis of As, Hg, Se, and Sb [25,26,27,28,29,30,31,32], this presented work reviews and discusses the different separation and detection methods for the speciation analysis of trace As, Hg, Se and Sb in environmental and biological samples with an emphasis on the hyphenated techniques
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