Simultaneous determination of metal ions as complexes of pentamethylene dithiocarbamate in Indus river water, Pakistan

Arain, M. A.; Wattoo, Feroza Hamid; Wattoo, Muhammad Hamid Sarwar; Ghanghro, Allah Bux; Tirmizi, Syed Ahmed; Iqbal, Javed; Arain, Shahnila Amir

doi:10.1016/j.arabjc.2009.07.007

Cited by 17 publications

(5 citation statements)

References 16 publications

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“…Pairs of free electrons from the sulfur of the Th molecule bind to the metal in a complexation process that commonly occurs with DTC compounds. 31−33 The resulting change in the SERS spectrum, compared to the Raman spectrum, was a new band at 1511 cm −1 , attributed to the C = N stretching vibration, which is possible when the Th molecule is altered. It is important to mention that when Thiram is diluted, it ionizes in the form of thioureide, produced by the tautomeric equilibrium of the DTC ion.…”

Section: Resultsmentioning

confidence: 99%

High Surface-Enhanced Raman Scattering (SERS) Amplification Factor Obtained with Silver Printed Circuit Boards and the Influence of Phenolic Resins for the Characterization of the Pesticide Thiram

et al. 2016

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In this work, low-cost substrates with rough silver surfaces were prepared from commercial copper foil-covered phenolic board (CPB) and an aqueous solution of AgNO3, and were used for surface-enhanced Raman scattering (SERS) and surface-enhanced resonance Raman scattering (SERRS) measurements. A maximum SERS amplification factor of 1.2 × 10(7) was obtained for Rhodamine 6G (R6G), and use of the CPB resulted in a detection limit for Thiram pesticide of 0.5 µmol L(-1) The minimum detection level was limited by residual traces of phenolic groups that originated from the substrate resin, which became solubilized in the aqueous Ag(+) solution. It was found that the bands corresponding to the impurities had less influence in the Thiram analysis, which could be explained by the high affinity of sulfur for Ag surfaces. The influence of impurities in the SERS analyses therefore depended on the linkage between the rough silver surface and the analyte. The findings demonstrated the ease and effectiveness of using CPB to prepare a nanostructured surface for SERS.

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Section: Resultsmentioning

confidence: 99%

High Surface-Enhanced Raman Scattering (SERS) Amplification Factor Obtained with Silver Printed Circuit Boards and the Influence of Phenolic Resins for the Characterization of the Pesticide Thiram

et al. 2016

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“…Figure 7 shows a chromatogram taken for BCR 715 wastewater-SRM, by the HPLC-DAD. (Zhang et al 2005;Chung and Chung 2003;Peng et al 2005;Zhu et al 2007;Arain et al 2009;Amoli et al 2006;Farajzadeh et al 2010;Cheng et al 2008) was shown in Table 3. The limit of detection (LOD) for Co(II) is better than those of the direct HPLC measurements reported in the previous similar papers, also better than those of a combination of preconcentration and HPLC, required laborious and complicated sample preparation steps.…”

Section: Analysis Of Water Samplesmentioning

confidence: 91%

Determination of cobalt, nickel and iron at trace level in natural water samples by in-column chelation-reversed phase high-performance liquid chromatography

Höl

Divrikli

Elçi

2011

Environ Monit Assess

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This paper reports the utilization of 4-(2-pyridylazo) resorcinol (PAR) as a chelating reagent for in-column derivatization and the determination of trace Co, Fe, and Ni ions by reversed-phase high-performance liquid chromatography with photodiode array detector. A good separation of Co, Fe, and Ni chelates were achieved by using an Inertsil ODS-3 column and a mobile phase, consisted of methanol-THF-water mixture (50:5:45) containing ammonium acetate buffer (pH 5.0) and PAR. After full optimization, good repeatability of retention times (relative standard deviation (RSD) < 0.05%) and peak areas (RSD < 1.7%) was achieved as well as a good linearity (r (2) > 0.9991). The detection limits (S/N = 3), expressed as micrograms per liter, were 0.50 (Co), 9.07 (Fe), and 2.00 (Ni). The applicability and the accuracy of the developed method were estimated by the analysis of spiked water samples and certified reference material BCR 715 wastewater-SRM.

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“…28 The strong metal-binding property of dithiocarbamates (DTCs) produces intensely colored complexes with certain metal ions. 6,23,29,30 Metal DTC complexes are usually measured by UV-Vis spectrophotometry for determination of DTCs that have strong absorbance in the UV region after solvent extraction with nonpolar organic solvents. 19,30 However, solvent extraction techniques are time-consuming and demanding, and they usually involve harmful substances.…”

Section: Introductionmentioning

confidence: 99%

A new method for simultaneous determination of trace amounts of Cu(II) and Ni(II) ions by preconcentration and spectrophotometric analysis

Topuz¹,

Adanur²,

Yalçuk³

2017

Turk J Chem

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Simultaneous determination of metal ions as complexes of pentamethylene dithiocarbamate in Indus river water, Pakistan

Cited by 17 publications

References 16 publications

High Surface-Enhanced Raman Scattering (SERS) Amplification Factor Obtained with Silver Printed Circuit Boards and the Influence of Phenolic Resins for the Characterization of the Pesticide Thiram

High Surface-Enhanced Raman Scattering (SERS) Amplification Factor Obtained with Silver Printed Circuit Boards and the Influence of Phenolic Resins for the Characterization of the Pesticide Thiram

Determination of cobalt, nickel and iron at trace level in natural water samples by in-column chelation-reversed phase high-performance liquid chromatography

A new method for simultaneous determination of trace amounts of Cu(II) and Ni(II) ions by preconcentration and spectrophotometric analysis

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