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Structure determination of bound nitrogen-based adducts with copper(II) acetylacetonato; an EPR, ENDOR and DFT study

15-Apr-2015 | Emma Carter; Katherine M. Sharples; James A. Platts; Damien M. Murphy, Physical Chemistry Chemical Physics, 2015

The adducts of bis(acetylacetonato)–copper(ii), [Cu(acac)2], formed with a range of nitrogen heterocycles including pyridine (2), methylpyridines (3,4,5), amino-methylpyridines (6,7) and diazines (8,9,10) were investigated in frozen solution using X-band EPR and 1H ENDOR spectroscopy. The small ...

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3,5-Disubstituted-2-(2′-pyridylpyrroles) Ir(III) complexes: Structural and photophysical characterization

12-Apr-2015 | Author(s): Teresa F. Mastropietro , Massimo La Deda , Nicolas Godbert , Loredana Ricciardi , Elisabeta I. Szerb ..., Journal of Organometallic Chemistry, 2015

Publication date: 15 June 2015 Source:Journal of Organometallic Chemistry, Volume 786 Author(s): Teresa F. Mastropietro , Massimo La Deda , Nicolas Godbert , Loredana Ricciardi , Elisabeta I. Szerb , Mauro Ghedini , Iolinda Aiello The synthesis, crystal structure and luminescence ...

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Novel electroanalyical method for the determination of Andrographolide from Andrographis panuculata extract and urine samples

12-Apr-2015 | Author(s): Dalibor M. Stanković , Anchalee Samphao , Darko Kuzmanović , Kurt Kalcher, Microchemical Journal, 2015

Publication date: Available online 9 April 2015 Source:Microchemical Journal Author(s): Dalibor M. Stanković , Anchalee Samphao , Darko Kuzmanović , Kurt Kalcher This paper present, for the first time, electrochemical behavior of diterpene lactone andrographolide and its voltammetric ...

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Electrochemical deposition of bismuth on activated graphene-nafion composite for anodic stripping voltammetric determination of trace heavy metals

12-Apr-2015 | Author(s): Sohee Lee , Sungyool Bong , Jeonghyun Ha , Minjeong Kwak , Seung-Keun Park , Yuanzhe Piao, Sensors and Actuators B: Chemical, 2015

Publication date: August 2015 Source:Sensors and Actuators B: Chemical, Volume 215 Author(s): Sohee Lee , Sungyool Bong , Jeonghyun Ha , Minjeong Kwak , Seung-Keun Park , Yuanzhe Piao In this study, we report the first example of a bismuth film electrode plated in situ using activated ...

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Quantitative analysis of 17 amino acids in tobacco leaves using an amino acid analyzer and chemometric resolution

10-Apr-2015 | Yihang Zeng, Wensheng Cai, Xueguang Shao, Journal of Separation Science, 2015

A method was developed for quantifying 17 amino acids in tobacco leaves by using an A300 amino acid analyzer and chemometric resolution. In the method, amino acids were eluted by the buffer solution on ion‐exchange column. After reacting with ninhydrin, the derivatives of amino acids were ...

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Electrochemical biosensor based on three-dimensional reduced graphene oxide and polyaniline nanocomposite for selective detection of mercury ions

05-Apr-2015 | Author(s): Yanqin Yang , Mengmeng Kang , Shaoming Fang , Minghua Wang , Linghao He , Jihong Zhao , Hongzhong ..., Sensors and Actuators B: Chemical, 2015

Publication date: 31 July 2015 Source:Sensors and Actuators B: Chemical, Volume 214 Author(s): Yanqin Yang , Mengmeng Kang , Shaoming Fang , Minghua Wang , Linghao He , Jihong Zhao , Hongzhong Zhang , Zhihong Zhang Nanorod-like nanocomposite of three-dimensional reduced graphene ...

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Stripping voltammetry microprobe (SPV): Substantial improvements of the protocol

29-Mar-2015 | Author(s): Miguel Gulppi , Jorge Pavez , José H. Zagal , Mamie Sancy , Manuel Azocar , Fritz Sholtz , Maritza ..., Journal of Electroanalytical Chemistry, 2015

Publication date: 15 May 2015 Source:Journal of Electroanalytical Chemistry, Volume 745 Author(s): Miguel Gulppi , Jorge Pavez , José H. Zagal , Mamie Sancy , Manuel Azocar , Fritz Sholtz , Maritza A. Páez The recently introduced new electroanalytical protocol of stripping ...

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Simultaneous determination of synthetic colorants in yogurt by HPLC

29-Mar-2015 | Author(s): Waleska de Araújo Siqueira Bento , Bruno Parente Lima , Ana Paula S. Paim, Food Chemistry, 2015

Publication date: 15 September 2015 Source:Food Chemistry, Volume 183 Author(s): Waleska de Araújo Siqueira Bento , Bruno Parente Lima , Ana Paula S. Paim This article reports on a method to determine synthetic dyes in yogurts and milk drinks. Initially a method for extraction of ...

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Prussian blue/1-butyl-3-methylimidazolium tetrafluoroborate – Graphite felt electrodes for efficient electrocatalytic determination of nitrite

29-Mar-2015 | Author(s): Lei Wang , Simon Tricard , Linghua Cao , Yanling Liang , Jihua Zhao , Jian Fang , Weiguo Shen, Sensors and Actuators B: Chemical, 2015

Publication date: 31 July 2015 Source:Sensors and Actuators B: Chemical, Volume 214 Author(s): Lei Wang , Simon Tricard , Linghua Cao , Yanling Liang , Jihua Zhao , Jian Fang , Weiguo Shen In this study, a novel Prussian blue (PB), ionic liquid 1-butyl-3-methylimidazolium ...

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Photoresponsive molecularly imprinted hydrogel casting membrane for the determination of trace tetracycline in milk

25-Mar-2015 | Qiang Wang, Zhen Lv, Qian Tang, Cheng‐Bin Gong, Michael Hon Wah Lam, Xue‐Bing Ma, Cheuk‐Fai Chow, Journal of Molecular Recognition, 2015

This study aimed to develop a photoresponsive molecularly imprinted hydrogel (MIH) casting membrane for the determination of trace tetracycline (TC) in milk. This MIH casting membrane combined the specificity of MIHs, the photoresponsive properties of azobenzene, and the portable properties of a ...

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