Trace metal determination by chromatography

Nickless, G.

doi:10.1016/s0021-9673(00)80258-7

Cited by 105 publications

(16 citation statements)

References 193 publications

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“…On the other hand, the application of high performance liquid chromatography (HPLC) in the separation and determination of metal ions has increased in recent years. [1][2][3][4][5] The HPLC apparatus is not too expensive and the running cost is very low. In addition, operation of the HPLC is easy and a specific skill is not required.…”

Section: Selective and Sensitive Determination Of Mercury(ii) Ions Inmentioning

confidence: 99%

Selective and Sensitive Determination of Mercury(II) Ions in River Water by an Automatic HPLC System Combined with On-Line Column Enrichment as 2-Mercaptopyrimidine Chelate

Ichinoki

Kodani

Fujii

2009

Journal of Liquid Chromatography & Related Technologies

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A selective and sensitive determination method for mercury (Hg) ions in river water by reversed phase high performance liquid chromatography (HPLC) has been developed. Two mL of water sample containing Hg(II) ions was put into a 4 mL sample tube. To the sample tube, 500 mL of 2 mol=L (M) acetate buffer solution (pH 4.5), and 50 mL of 0.01 M 2-mercaptopyrimidine (MP) were added to form a neutral Hg chelate. The Hg chelate subsequently became preconcentrated in a reversed phase mini column. By switching the valve, the Hg chelate was separated and detected at 255 nm. These processes occur automatically, except for the addition of water samples, buffer, and MP solutions. The correlation coefficients of the calibration curves obtained with 2 mL of mercury standard were more than 0.999 over the range of 20 ng=mL (ppb) to 10 mg=mL (ppm). The detection limit of Hg ions in 2 mL solution was 1.6 ppb, which corresponded to 3 times the standard deviation (N ¼ 10) of the blank peak area. Effects of foreign ions on the determination of 0.2 ppm Hg were investigated with 57 metal ions. Almost none of the ions interfered except for Au(III), Pd(II), Ag(I), and Co(II) ions. The recoveries with spiked river water samples for 5, 0.5, and 0.05 Hg ion (N ¼ 7) were 99.7 AE 0.4%, 100.3 AE 0.3%, and 100.7 AE 0.7%, respectively.

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Section: Selective and Sensitive Determination Of Mercury(ii) Ions Inmentioning

confidence: 99%

Selective and Sensitive Determination of Mercury(II) Ions in River Water by an Automatic HPLC System Combined with On-Line Column Enrichment as 2-Mercaptopyrimidine Chelate

Ichinoki

Kodani

Fujii

2009

Journal of Liquid Chromatography & Related Technologies

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“…This area was reviewed by a number of authors [1][2][3][4]. Since a great diversity of chemical species may exist for a given element, separation is almost always needed for their measurement and 'speciation.'…”

Section: Dynamic Nieusurenient Rangementioning

confidence: 99%

Determination of trace elements by chromatographic methods employing atomic plasma emission spectroscopic detection

Uden

1994

Determination of Trace Elements

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“…The most widely used derivatives are the dithiocarbamates, dithiozonates, ketoenamines, salicylaldimines, dialkyl thiophosphates, 8-hydroxyquinolines and the tetradentate Schiff bases [671,[673][674][675][676]. The most widely used derivatives are the dithiocarbamates, dithiozonates, ketoenamines, salicylaldimines, dialkyl thiophosphates, 8-hydroxyquinolines and the tetradentate Schiff bases [671,[673][674][675][676].…”

Section: Inorganic Anions and Cationsmentioning

confidence: 99%

Sample Preparation for Chromatographic Analysis

Poole

1991

Chromatography Today

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Trace metal determination by chromatography

Cited by 105 publications

References 193 publications

Selective and Sensitive Determination of Mercury(II) Ions in River Water by an Automatic HPLC System Combined with On-Line Column Enrichment as 2-Mercaptopyrimidine Chelate

Selective and Sensitive Determination of Mercury(II) Ions in River Water by an Automatic HPLC System Combined with On-Line Column Enrichment as 2-Mercaptopyrimidine Chelate

Determination of trace elements by chromatographic methods employing atomic plasma emission spectroscopic detection

Sample Preparation for Chromatographic Analysis

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