Solid-phase extraction–gas chromatography–mass spectrometry using a fullerene sorbent for the determination of inorganic mercury(II), methylmercury(I) and ethylmercury(I) in surface waters at sub-ng/ml levels

Dithizone-functionalized solid phase extraction–displacement elution-high performance liquid chromatography–inductively coupled plasma mass spectrometry for mercury speciation in water samples

“…Moreover, the ethylation-based method cannot be used for ethylmercury determination. In recent years, other pre-concentration methods were reported including solid phase micro-extraction [3][4][5], liquid phase micro-extraction [6][7][8], cloud point extraction [9,10] and solid phase extraction (SPE) [11][12][13][14][15][16][17][18][19]. For solid phase micro-extraction, derivatization procedure such as hyride, ethylation or phenylation derivatization is often necessary to transform inoganic mercury (IHg) and organomercurials into their volatile species.…”

Application of Carbon Sorbents for the Concentration and Separation of Metal Ions

“…The analytical potential of fullerene as an adsorbent for organometallic compounds has been explored and used in speciation analysis for discrimination among the different forms of a metal. [78][79][80][81][82] A novel screening method for lead compounds in environmental waters was based on separation of inorganic lead such as PbCrO4 from its trialkyllead species, which then were complexed with DDTC and retained on a C60 fullerene column. 78 Similar methods have been proposed for determination of butyltin and organomercury compounds after formation of neutral complexes with DDTC.…”

“…78 Similar methods have been proposed for determination of butyltin and organomercury compounds after formation of neutral complexes with DDTC. 80,81 Organolead compounds could be also separated on the fullerene derivative with covalently attached DDTC chelating groups. 82 …”

UV Irradiation Controlled Cold Vapor Generation Using SnCl2 as Reductant for Mercury Speciation

“…The most common methods for mercury speciation are gas chromatography (GC) and highperformance liquid chromatography (HPLC) coupled with a mercury-specific detection system including atomic absorption spectrometry (AAS) 3,4 atomic fluorescence spectrometry (AFS), [5][6][7][8][9] atomic emission spectrometry (AES), [10][11][12] or inductively coupled plasma-mass spectrometry (ICP-MS). [13][14][15] Although these detection methods are attractive for mercury speciation because of their high sensitivity and selectivity, the relatively high instrumental and/or running costs as well as relatively complicated instrumentation and operation are the drawbacks of these hyphenated techniques for routine speciation analysis of mercury species. It should be pointed out, however, that the "species resolution" of such methods is much better with chromatographic separation, resulting in more species information.…”