A sensitive method for the determination of gold and palladium based on dispersive liquid–liquid microextraction combined with flame atomic absorption spectrometric determination using N-(6-morpholin-4-ylpyridin-3-yl)-N′-phenylthiourea

Bahadır, Zekeriyya; Bulut, Volkan Numan; Bektaş, Hakan; Soylak, Mustafa

doi:10.1039/c5ra26575d

Cited by 16 publications

(2 citation statements)

References 41 publications

(38 reference statements)

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“…The sensitive and specific detection of Pd 2+ is hence an important issue in great demand. The conventional method for Pd 2+ detection such as atomic absorption spectrometry and X-ray fluorescence spectrometry is generally expensive and time-consuming. − In this work, the phosphorus-containing fluorescent polymers are explored as a fluorescent chemosensor for Pd 2+ , which enjoys a series of advantages such as rapid detect, low cost, reliability, high sensitivity, and selectivity.…”

Section: Resultsmentioning

confidence: 99%

Room Temperature Multicomponent Polymerizations of Alkynes, Sulfonyl Azides, and Iminophosphorane toward Heteroatom-Rich Multifunctional Poly(phosphorus amidine)s

Tang

2017

Macromolecules

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Multicomponent polymerization (MCP) is a fascinating synthetic method for the construction of polymers with diverse structures and multifunctionalities. As a rapidly developing field, MCP begins to show great impact in polymer chemistry and polymer materials, which attract scientists' attention by their high convenience and efficiency, great structure diversity, high atom economy, and environmental benefit. In this work, a facile one-pot three-component polymerization of diynes, disulfonyl azides, and iminophosphorane is developed to construct N, O, S, and P-containing heteroatom-rich poly(phosphorus amidine)s with advanced functionalities. The optimized MCP proceeds at room temperature in THF under the catalysis of CuI, generating polymers with high molecular weights (up to 85 600 g/mol) in excellent yields (up to 92%). The MCP enjoys general applicability of various monomers including aromatic and aliphatic alkynes, and the only byproduct generated from the polymerization is nitrogen gas, demonstrating high atom economy and environmental benefit. Interestingly, the phosphorus amidine model compounds were found to possess both aggregation-induced emission behavior and thermally activated delayed fluorescence, indicating unique feature of the corresponding polymer materials. The polymers generally enjoy good solubility in polar organic solvents, good film-forming ability, satisfactory thermal stability, and high refractivity. They can also function as fluorescent chemosensors for Pd 2+ ions detection with high sensitivity (K q up to 207 600 M −1 ) and selectivity. This MCP provides an efficient approach for the synthesis of heteroatom-rich multifunctional polymer materials, which directly construct the luminescent phosphorus amidine moiety in situ, demonstrating high synthetic efficiency and the potential application in material science.

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Section: Resultsmentioning

confidence: 99%

Room Temperature Multicomponent Polymerizations of Alkynes, Sulfonyl Azides, and Iminophosphorane toward Heteroatom-Rich Multifunctional Poly(phosphorus amidine)s

Tang

2017

Macromolecules

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“…In order to reduce the sample preparation time of HPLC, DLLME is introduced for the pre-treatment of samples to enrich the target components, accelerate the detection process, and reduce the waste generated during the HPLC process (Berijani et al, 2006 ; Leong and Huang, 2008 ; Farajzadeh et al, 2009 ). In the DLLME process, a ternary solvent system comprising extraction and dispersion solvents is used, which can accelerate the dispersion of an organic extraction solvent into an aqueous sample to achieve highly efficient extraction (Yan and Wang, 2013 ; Russo et al, 2014 ; Shrivas and Kapadia, 2015 ; Bahadir et al, 2016 ), therefore, DLLME coupled with HPLC (DLLME-HPLC) is a sensitive, stable, accurate, rapid and inexpensive method to analyze VVOCs with poor volatilities. Wu et al ( 2019 ) used DLLME-HPLC to rapidly determine tetramethyl-pyrazine in vinegar, indicating that this method is sensitive, stable, and accurate.…”

Section: Analytical Methods For the Vinegar Volatile Organic Compoundsmentioning

confidence: 99%

Vinegar Volatile Organic Compounds: Analytical Methods, Constituents, and Formation Processes

et al. 2022

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Vinegar is an acid condiment shared all over the world. According to the raw materials, vinegar can be mainly divided into fruit and cereal ones, both of which possess unique aroma and flavor characteristics and corresponding volatile organic compounds (VOCs). Many studies about vinegar VOCs' (VVOCs) sorts, analytical methods, and forming mechanisms have been done. In this review, the main categories of vinegar and their distribution in the world are briefly introduced, then VVOCs' analytical and identified methods, types, and forming processes are summarized. Additionally, the VVOCs' research directions are discussed and prospected. According to the searched literatures, this study is the first to systematically review the analytical methods, sorts, and formation mechanisms of VVOCs, which will make the readers better understand the vinegar's aromas and flavors and their producing mechanisms.

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Dissolved carbon dioxide flotation-assisted in-syringe dispersive liquid–liquid microextraction coupled with microsampling flame atomic absorption spectrometry for selective determination of palladium in water samples

Seidi

2017

J IRAN CHEM SOC

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A sensitive method for the determination of gold and palladium based on dispersive liquid–liquid microextraction combined with flame atomic absorption spectrometric determination using N-(6-morpholin-4-ylpyridin-3-yl)-N′-phenylthiourea

Abstract: A new method for the determination of gold and palladium was developed by dispersive liquid–liquid microextraction separation-preconcentration and flame atomic absorption spectrometry detection.

Cited by 16 publications

References 41 publications

Room Temperature Multicomponent Polymerizations of Alkynes, Sulfonyl Azides, and Iminophosphorane toward Heteroatom-Rich Multifunctional Poly(phosphorus amidine)s

Room Temperature Multicomponent Polymerizations of Alkynes, Sulfonyl Azides, and Iminophosphorane toward Heteroatom-Rich Multifunctional Poly(phosphorus amidine)s

Vinegar Volatile Organic Compounds: Analytical Methods, Constituents, and Formation Processes

Dissolved carbon dioxide flotation-assisted in-syringe dispersive liquid–liquid microextraction coupled with microsampling flame atomic absorption spectrometry for selective determination of palladium in water samples

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