Determination of metal ions by liquid chromatographic separation of their 2-acetylpyridine-4-ethyl-3-thiosemicarbazone chelates

Main, Mark V.; Fritz, James S.

doi:10.1016/0039-9140(91)80044-z

Cited by 12 publications

(3 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many kinds of reagents (e.g., 8-quinolinol derivatives [1][2][3], azo dyes [4][5][6][7][8], β -diketones [9,10], hydrazones [11][12][13], dithiocarbamate [14][15][16][17], cyclohexanediamine [18,19], porphyrin [20][21][22], etc.) have been examined as precolumn derivation reagents.…”

Section: Introductionmentioning

confidence: 99%

Study on the Determination of Heavy-Metal Ions in Tobacco and Tobacco Additives by Microwave Digestion and HPLC with PAD Detection

Yang

Shi

et al. 2005

J Anal Chem

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Study on the Determination of Heavy-Metal Ions in Tobacco and Tobacco Additives by Microwave Digestion and HPLC with PAD Detection

Yang

Shi

et al. 2005

J Anal Chem

View full text Add to dashboard Cite

“…The RP-HPLC technique has been proved to be a reliable technique for the separation and determination of trace amounts of metal ions. Many kinds of reagents such as 8quinolinol derivatives, 1-3 azo dyes, [4][5][6][7][8] b-diketones, [9][10] hydrazones, [11][12][13] dithiocarbamate, [14][15][16][17] cyclohexanediamine, [18][19] porphyrin [20][21][22] and the like, have been examined as pre-column derivatization regents. Several review articles have appeared on this approach.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Determination of Tin, Nickel, Lead, Cadmium and Mercury in Tobacco and Tobacco Additives by Microwave Digestion and RP‐HPLC Followed by On‐Line Column Enrichment

Chen

Yang²,

Wang³

et al. 2004

J Chinese Chemical Soc

View full text Add to dashboard Cite

A new method for the simultaneous determination of five heavy metal ions, tin, nickel, lead, cadmium and mercury ions as metal-tetra-(2-aminophenyl)-porphyrin (T2APP) chelates was developed using reversed-phase high performance liquid chromatography (RP-HPLC) equipped with a photodiode array detector and combined with an on-line enrichment technique. The tin, nickel, lead, cadmium and mercury ions were pre-column derivatized with T 2APP to form color chelates. The Sn-T2APP, Ni-T2APP, Hg-T2APP, Cd-T2-APP and Pb-T2APP chelates can be absorbed onto the front of the enrichment column when they are injected into the injector and sent to the enrichment column [Waters Xterra TM RP18 (5m, 3.9´20 mm)] with a buffer solution of 0.05 mol/L pyrrolidine-acetic acid (pH = 10.0) as mobile phase. After the enrichment had finished, by switching the six-port switching valves, the retained chelates were back-flushed by mobile phase and traveling towards the analytical column. These chelates separation on the analytical column [Waters Xterra TM RP 18 (5m, 3.9´150 mm)] was satisfactory by gradient elution with methanol (containing 0.05 mol/L pyrrolidine-acetic acid buffer salt, pH = 10.0) and acetone (containing 0.05 mol/L pyrrolidine-acetic acid buffer salt, pH = 10.0) as mobile phase. The linearity range is 0.01~120 mg/L for each metal ion. The detection limits (S/N = 3) of tin, nickel, lead, cadmium and mercury are 4.0 ng/L, 3.5 ng/L, 2.5 ng/L, 3.0 ng/L and 3.0 ng/L, respectively. This method was applied to the determination of tin, nickel, lead, cadmium and mercury ions in tobacco and tobacco additives with good results.

show abstract

“…Many kinds of reagent, such as 8-quinolinol derivatives, 1-3 azo dyes, [4][5][6][7][8] β-diketones, 9-10 hydrazones, [11][12][13] dithiocarbamate, [14][15][16][17] cyclohexanediamine, [18][19] porphyrin [20][21][22] and the like, have been examined as pre-column derivatization regents. Several review articles have appeared concerning this approach.…”

mentioning

confidence: 99%

Determination of Lead, Cadmium and Mercury in Microwave- digested Foodstuffs by RP-HPLC with an On-line Enrichment Technique

Huang

Yang

et al. 2003

ANAL. SCI.

View full text Add to dashboard Cite

A new method for the simultaneous determination of lead, cadmium and mercury ions in microwave-digested foodstuffs by reversed-phase high-performance liquid chromatography combined with on-line enrichment technique has been developed. The foodstuff samples were digested by microwave digestion. The lead, cadmium and mercury ions can be precolumn derivatized with 5,10,15,20-tetrakis(3-aminophenyl)porphine (T3APP) to form color chelates; then, the Hg-T3APP, Cd-T3APP and Pb-T3APP chelates can be enriched and separated on a valve switching HPLC system combined with on-line enrichment technique. The linearity ranges are 0.01 -120 µg/l for each metal ion. The detection limits (S/N = 3) of lead, cadmium and mercury are 1.2 ng/l, 0.5 ng/l and 0.8 ng/l, respectively. This method was applied to the determination of lead, cadmium and mercury in foodstuffs with good results.

show abstract

Determination of metal ions by liquid chromatographic separation of their 2-acetylpyridine-4-ethyl-3-thiosemicarbazone chelates

Cited by 12 publications

References 15 publications

Study on the Determination of Heavy-Metal Ions in Tobacco and Tobacco Additives by Microwave Digestion and HPLC with PAD Detection

Study on the Determination of Heavy-Metal Ions in Tobacco and Tobacco Additives by Microwave Digestion and HPLC with PAD Detection

Simultaneous Determination of Tin, Nickel, Lead, Cadmium and Mercury in Tobacco and Tobacco Additives by Microwave Digestion and RP‐HPLC Followed by On‐Line Column Enrichment

Determination of Lead, Cadmium and Mercury in Microwave- digested Foodstuffs by RP-HPLC with an On-line Enrichment Technique

Contact Info

Product

Resources

About