Advances in chelating exchange ion chromatography for the determination of trace metals using dye-coated columns

Jones, Phil; Challenger, Owen J.; Hill, Steve J.; Barnett, Neil W.

doi:10.1039/an9921701447

Cited by 32 publications

(13 citation statements)

References 3 publications

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“…As stated previously Jones and coworkers were the first to show the potential of HPCIC using IDA substrates. They showed that the analysis of samples with high salt content, such as concentrated KCl and Na 2 SO 4 , was easily realized [73,74]. They also found that one of the consequences of using IDA phases was that it could be too selective for some metals when using simple acidic eluents.…”

Section: Applicability Of Hpcicmentioning

confidence: 99%

Recent developments in the high‐performance chelation ion chromatography of trace metals

Nesterenko¹,

Jones

2007

J of Separation Science

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Review Recent developments in the high-performance chelation ion chromatography of trace metalsThere have been a number of significant developments in the high-performance chelation ion chromatography (HPCIC) of trace metals in recent years. This review focuses on these developments, while giving important information on the fundamental parameters controlling the chelation sorption mechanism, including type of chelating group, stability constants, kinetics, and column temperature. The discussion pays particular attention to the types and properties of efficient chelating stationary phases which have been fabricated for certain groups of metals. The review also describes a number of major improvements in postcolumn reaction detection including the use of the latest reagents and noise reduction strategies to improve sensitivity and reduce LOD. In the final section, an indication of the applicability of HPCIC to a range of complex sample types is given with some key examples and chromatograms using the latest high-efficiency chelating phases.

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Section: Applicability Of Hpcicmentioning

confidence: 99%

Recent developments in the high‐performance chelation ion chromatography of trace metals

Nesterenko¹,

Jones

2007

J of Separation Science

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“…Many types of ion exchange resins and chelates such as polystyrene [1][2][3][4], poly vinyl resin [5] and polyacrylate [6] were used for solid phase extraction of metal ions.…”

Section: Introductionmentioning

confidence: 99%

Studies on the sorption of praseodymium (III), holmium (III) and cobalt (II) from nitrate medium using TVEX–PHOR resin

El‐Dessouky

El-Sofany

Daoud

2007

Journal of Hazardous Materials

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“…One cubic centimeter of the 5.0 × 10 -3 mol dm -3 DFO aqueous solution and 5 cm 3 of the 5 mol dm -3 H2SO4 or HCl solution were added. Distilled water was added to adjust the volume to 25 cm 3 and then the sample solution was allowed to stand for 5 min. A 0.5 g sample of the sulfuric acid-treated silica gel was placed in a glass filter (volume: 25 cm 3 ; pore size: 16 -40 µm).…”

Section: Solid-phase Extraction Proceduresmentioning

confidence: 99%

“…Many types of ion exchange resins and chelate resins such as polystyrenes, [1][2][3][4] polyvinyl resin, 5 polyacrylate 6 and silica gels [7][8][9][10] were used for the solid-phase extraction of metal ions. Especially, silica gel has been widely applied as an ion exchange support for cationic species such as metal ions and cationic metal-chelates, because silica gel has many silanol groups on its surface.…”

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confidence: 99%

Solid-phase Extraction of High Oxidation State Metal Ion-Desferrioxamine B Chelates Using Sulfuric Acid-treated Silica Gel

Takahashi

Igarashi

2000

ANAL. SCI.

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Many types of ion exchange resins and chelate resins such as polystyrenes, 1-4 polyvinyl resin, 5 polyacrylate 6 and silica gels [7][8][9][10] were used for the solid-phase extraction of metal ions. Especially, silica gel has been widely applied as an ion exchange support for cationic species such as metal ions and cationic metal-chelates, because silica gel has many silanol groups on its surface. However, many solid-phase extraction methods using silica gel are based on the ion exchange reaction of the silanol group. Thus, it was very difficult to extract metal ions and/or metal-chelates which were only generated in a strong acidic aqueous solution. On the other hand, chemically modified silica gels such as octadecyl silicate (ODS) were developed to extract not only cationic compounds but also neutral and/or negatively-charged compounds. However, in strongly acidic media, it was also difficult to extract the cationic compounds. Moreover, when the modified group was released, these supports could not be recycled.In searching for a support which can be used in a strongly acidic media and then recycled, we found that a silica gel which had been heated in concentrated sulfuric acid acts as an effective ion exchange support for cationic compounds in acidic aqueous solution.On the other hand, the authors have already reported that desferrioxamine B (DFO, Fig. 1), one of the hydroxamate type siderophores, specifically reacts and forms chelates with seven high oxidation state metal ions {Ti(IV), Zr(IV), V(V), Nb(V), Ta(V), Mo(VI) and W(VI)}. Homogeneous liquid-liquid extraction of these metal-chelates was then developed. 11 In this paper, the solid-phase extraction of these metal-chelates from strongly acidic aqueous solution using sulfuric acid-treated silica gel was studied. Experimental Materials and apparatusSilica gel (for thin layer chromatography, particle size: <46 µm) was received from Wako Pure Chemicals. Sulfuric acid and hydrochloric acid were purchased from Kanto Chemicals. Desferrioxamine B was obtained from Ciba-geigy as its methanesulfonate salt. Each metal ion standard solution (1000 ppm) was obtained from Kanto Chemicals. All other reagents used were of analytical reagent grade as received from Kanto Chemicals, unless otherwise described.A Nippon Jarrell-Ash ICAP-575 instrument was used for the ICP atomic emission spectrometry (ICP-AES). A JASCO Herschel FT/IR-410 instrument was used for the FT-IR. Preparation of sulfuric acid-treated silica gelA 40-cm 3 volume of sulfuric acid was added to 10 g of the silica gel and the mixture was then heated at 120˚C for 30 min. After heating, the silica gel was filtered to remove the sulfuric acid. Here, 5 different samples of the sulfuric acid-treated silica gel were prepared under the proposed condition and then solidphase extraction of the V(V)-DFO chelate was performed. As a result, 3.8% of relative standard deviation was obtained. It clearly shows that these silica gels have the same performance. The obtained sulfuric acid-treated silica gel was stored in a d...

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Advances in chelating exchange ion chromatography for the determination of trace metals using dye-coated columns

Cited by 32 publications

References 3 publications

Recent developments in the high‐performance chelation ion chromatography of trace metals

Recent developments in the high‐performance chelation ion chromatography of trace metals

Studies on the sorption of praseodymium (III), holmium (III) and cobalt (II) from nitrate medium using TVEX–PHOR resin

Solid-phase Extraction of High Oxidation State Metal Ion-Desferrioxamine B Chelates Using Sulfuric Acid-treated Silica Gel

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