Simultaneous determination of platinum(II) and palladium(II) by reversed phase high-performance liquid chromatography with spectrophotometric detection after collection on and elution from resin coated with dimethylglyoxal bis(4-phenyl-3-thisomicarbazone)

Hoshi, Suwaru; Higashihara, Koki; Suzuki, Mamiko; Sakurada, Yasutoshi; Sugawara, Kazuharu; Uto, Masayuki; Akatsuka, Kunihiko

doi:10.1016/s0039-9140(96)02064-4

Cited by 33 publications

(9 citation statements)

References 24 publications

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“…Recently, new functional resins with chelating properties, prepared by simple immobilization of organic complexing reagents on different solid support, have gained considerable attention. For preconcentration of platinum Separon SGX C18 in the presence of cationic surfactants was proposed (Otruba, Strnadova, & Skalnikova, 1993), Amberlite XAD-7 resin coated with dimethylglyoxal bis(4-phenyl-3-thiosemicarbazone) was also studied (Hoshi et al, 1997), platinum was preconcentrated with bis(carboxyl-methyl)dithiocarbamate on Amberlite XAD-4 (Lee, Tölg, Beinrohr, & Tschö pel, 1993) and also using pyrrolidinedithiocarbamate on C18-bonded silica gel (Shah & Wei, 1989). The analytical performance of platinum collection using activated alumina was discussed by Cantarero, Gomez, Camara, and Palacios (1994).…”

Section: Introductionmentioning

confidence: 99%

Determination of platinum by graphite furnace atomic absorption spectrometry in foods and beverages using an automated on-line separation-preconcentration system

2006

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Section: Introductionmentioning

confidence: 99%

Determination of platinum by graphite furnace atomic absorption spectrometry in foods and beverages using an automated on-line separation-preconcentration system

2006

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“…Thiosemicarbazide and their derivatives are of current interest with respect to their uses as analytical reagents for high performance liquid chromatographic separations of metal(II) ions as metal chelates [1][2][3], potentiometric sensors [4], analytical detrmenation of metal ions [5] and clinical analysis [6]. Most of these compounds have antifungal [7], antimicrobial [8], antitumor [9], biological activity [10,11] as well as hypoglycemic effects [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Kinetic parameters and thermal decomposition for Novel 1,1-Malonyl-bis(4-p-Chlorophenylthiosemicarbazide) and Cu(II), Co(II), Zn(II) and Sn(II) complexes(H<sub>4</sub>pClMaTS) synthesized by electrochemical method

Amin¹,

Yamany²,

Abo-Aly³

et al. 2011

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HNMR, mass), thermal, and ESR studies. The Raman and infrared spectral studies suggests the tridentate behavior of the ligand from each tail. Since the ligand has two thiosemicarbazide groups, it may acts in an SNO tridentate fashion from each side with one of the two metal ions forming a polynuclear complex coordinating through both of the lone pair of electrons the enolic oxygen of the carbonyl group (C=O), the azomethine nitrogen (C=N) and the thioenol form of the thiocarbonyl group (C=S). The differential thermogravimetric analysis (DTG) curves were used to study the decomposition steps of the isolated complexes using Horowitz-Metzger (HM) and Coats-Redfern (CR) methods. The kinetic thermodynamic parameters such as: E*, ∆H*, ∆S*and ∆G* are calculated from the DTG curves.

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“…This has been proved to be a favorable and reliable technique. [17][18][19][20][21][22][23] However, the routine chromatographic methods have some disadvantages. The used derivatization reagents can not react with palladium, platinum and rhodium simultaneously, 17,18 or with low sensitivity, 19,20 or need long time heating for a complete reaction.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous determination of palladium, platinum and rhodium by on-line column enrichment and HPLC with 2,4-dihydroxybenzylidenethiorhodanine as pre-column derivatization reagent

Dong¹,

Han²,

Hu³

et al. 2006

J. Braz. Chem. Soc.

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Um novo método para determinação simultânea de íons paládio, platina e ródio, como quelatos metal-DHBTR foi desenvolvido. Os íons paládio, platina e ródio foram derivatizados (pré-coluna) com 2,4-dihidroxibenzilidenotiorodanina (DHBTR) para formar quelatos coloridos. Os quelatos Pd-DHBTR, Pt-DHBTR e Rh-DHBTR são absorvidos na coluna de enriquecimento, quando injetados e transportados por uma fase móvel composta por solução tampão de ácido acético-acetato de sódio 0,05 mol L -1 (pH 3,5). Após o término do enriquecimento, ao acionar uma válvula de seis vias, os quelatos retidos foram carregados pela fase móvel, para a coluna analítica. A separação dos quelatos na coluna analítica foi satisfatória com acetonitrila 62% (v/ v) (contendo solução tampão de ácido acético-acetato de sódio (0,05 mol L -1 , pH 3,5) e 0,1% (m/v) de tritonX-100) como fase móvel. Os limites de detecção de paládio, platina e ródio são 3,6 ng L -1 , 3,2 ng L -1 e 4,5 ng L -1 , respectivamente. Este método foi aplicado para a determinação de paládio, platina e ródio em água, urina e amostras de solo, com bons resultados.A new method for the simultaneous determination of palladium, platinum and rhodium ions as metal-DHBTR chelates was developed. The palladium, platinum and rhodium ions were pre-column derivatized with 2,4-dihydroxybenzylidenethiorhodanine (DHBTR) to form colored chelates. The Pd-DHBTR, Pt-DHBTR and Rh-DHBTR chelates can be absorbed onto the front of the enrichment column when they were injected into the injector and sent to the enrichment column with a 0.05 mol L -1 sodium acetate-acetic acid buffer solution (pH 3.5) as mobile phase. After the enrichment had finished, by switching the six ports switching valve, the retained chelates were back-flushed by mobile phase and traveling towards the analytical column. These chelates separation on the analytical column was satisfactory with 62% (v/v) acetonitrile (containing 0.05 mol L -1 of pH 3.5 sodium acetate-acetic acid buffer salt and 0.1% (m/v) of tritonX-100) as mobile phase. The Limits of detection of palladium, platinum and rhodium are 3.6 ng L , respectively. This method was applied to the determination of palladium, platinum and rhodium in water, urine and soil samples with good results.Keywords: palladium, platinum, rhodium, 2,4-dihydroxybenzylidenethiorhodanine, high performance liquid chromatography, on-line enrichment IntroductionEnvironmental contamination by the platinum group elements (PGEs), mainly related to automotive catalytic converters, is exponentially increasing and reliable and accurate quantification is a mandatory task. [1][2][3][4] The wide use of palladium, platinum and rhodium not only in automotive catalytic converters but as a drug (Pt) and in food production (Pd) 5 has led to a more uncontrolled release of those metals in the environment, with respect to the one due to the traditional chemical industry. Moreover, the platinum group elements derived from automotive catalytic converters are released as nanocrystallites (particles with less than 3 mm in ...

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Simultaneous determination of platinum(II) and palladium(II) by reversed phase high-performance liquid chromatography with spectrophotometric detection after collection on and elution from resin coated with dimethylglyoxal bis(4-phenyl-3-thisomicarbazone)

Cited by 33 publications

References 24 publications

Determination of platinum by graphite furnace atomic absorption spectrometry in foods and beverages using an automated on-line separation-preconcentration system

Determination of platinum by graphite furnace atomic absorption spectrometry in foods and beverages using an automated on-line separation-preconcentration system

Kinetic parameters and thermal decomposition for Novel 1,1-Malonyl-bis(4-p-Chlorophenylthiosemicarbazide) and Cu(II), Co(II), Zn(II) and Sn(II) complexes(H<sub>4</sub>pClMaTS) synthesized by electrochemical method

Simultaneous determination of palladium, platinum and rhodium by on-line column enrichment and HPLC with 2,4-dihydroxybenzylidenethiorhodanine as pre-column derivatization reagent

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Simultaneous determination of platinum(II) and palladium(II) by reversed phase high-performance liquid chromatography with spectrophotometric detection after collection on and elution from resin coated with dimethylglyoxal bis(4-phenyl-3-thisomicarbazone)

Cited by 33 publications

References 24 publications

Determination of platinum by graphite furnace atomic absorption spectrometry in foods and beverages using an automated on-line separation-preconcentration system

Determination of platinum by graphite furnace atomic absorption spectrometry in foods and beverages using an automated on-line separation-preconcentration system

Kinetic parameters and thermal decomposition for Novel 1,1-Malonyl-bis(4-p-Chlorophenylthiosemicarbazide) and Cu(II), Co(II), Zn(II) and Sn(II) complexes(H&lt;sub&gt;4&lt;/sub&gt;pClMaTS) synthesized by electrochemical method

Simultaneous determination of palladium, platinum and rhodium by on-line column enrichment and HPLC with 2,4-dihydroxybenzylidenethiorhodanine as pre-column derivatization reagent

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Kinetic parameters and thermal decomposition for Novel 1,1-Malonyl-bis(4-p-Chlorophenylthiosemicarbazide) and Cu(II), Co(II), Zn(II) and Sn(II) complexes(H<sub>4</sub>pClMaTS) synthesized by electrochemical method