Electrogenerated Chemiluminescence. 65. An Investigation of the Oxidation of Oxalate by Tris(polypyridine) Ruthenium Complexes and the Effect of the Electrochemical Steps on the Emission Intensity

1999 ◽  
Vol 103 (47) ◽  
pp. 10469-10480 ◽  
Author(s):  
Frédéric Kanoufi ◽  
Allen J. Bard
Keyword(s):  
Emission Intensity ◽  
Ruthenium Complexes ◽  
Electrogenerated Chemiluminescence

Quantification of electrogenerated chemiluminescence from tris(bipyridine)ruthenium(ii) and hydroxyl ions

2020 ◽  
Vol 22 (27) ◽  
pp. 15413-15417 ◽  
Author(s):  
Andrea Fiorani ◽  
Giovanni Valenti ◽  
Irkham ◽  
Francesco Paolucci ◽  
Yasuaki Einaga
Keyword(s):  
Emission Intensity ◽  
Reaction Rate ◽  
Electrogenerated Chemiluminescence

In this work, we quantify the electrogenerated chemiluminescence arising from the reaction of electrogenerated tris(bipyridine)ruthenium(iii) with hydroxyl ions, in terms of emission intensity and reaction rate.

Study of Langmuir monolayers of ruthenium complexes and their aggregation by electrogenerated chemiluminescence

Langmuir ◽  
1991 ◽  
Vol 7 (11) ◽  
pp. 2781-2787 ◽  
Author(s):  
Cary J. Miller ◽  
Paul. McCord ◽  
Allen J. Bard
Keyword(s):  
Ruthenium Complexes ◽  
Langmuir Monolayers ◽  
Electrogenerated Chemiluminescence

Self-enhanced electrogenerated chemiluminescence of ruthenium(ii) complexes conjugated with Schiff bases

2015 ◽  
Vol 44 (5) ◽  
pp. 2208-2216 ◽  
Author(s):  
Panpan Li ◽  
Zhaoyu Jin ◽  
Meilian Zhao ◽  
Yanxue Xu ◽  
Yong Guo ◽  
...  
Keyword(s):  
Schiff Bases ◽  
Ruthenium Complexes ◽  
Anion Recognition ◽  
Electrogenerated Chemiluminescence ◽  
Metal Anion ◽  
Free Metal

Self-enhanced electrochemiluminescence based on ruthenium complexes conjugated with Schiff bases is studied and used for co-reactant free metal anion recognition.

Characterization of Amethysts from Sukamara, Central Kalimantan, Using Laser-Induced Breakdown Spectroscopy (LIBS)

2020 ◽  
Vol 1 (2) ◽  
pp. 5-8
Author(s):  
Komang Gde Suastika, Heri Suyanto, Gunarjo, Sadiana, Darmaji
Keyword(s):  
Emission Intensity ◽  
Laser Energy ◽  
Emission Spectra ◽  
Atomic Emission ◽  
Laser Induced Breakdown Spectroscopy ◽  
Chemical Formula ◽  
Central Kalimantan ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Abstract - Laser-Induced Breakdown Spectroscopy (LIBS) is one method of atomic emission spectroscopy using laser ablation as an energy source. This method is used to characterize the type of amethysts that originally come from Sukamara, Central Kalimantan. The result of amethyst characterization can be used as a reference for claiming the natural wealth of the amethyst. The amethyst samples are directly taken from the amethyst mining field in the District Gem Amethyst and consist of four color variations: white, black, yellow, and purple. These samples were analyzed by LIBS, using laser energy of 120 mJ, delay time detection of 2 μs and accumulation of 3, with and without cleaning. The purpose of this study is to determine emission spectra characteristics, contained elements, and physical characteristics of each amethyst sample. The spectra show that the amethyst samples contain some elements such as Al, Ca, K, Fe, Gd, Ba, Si, Be, H, O, N, Cl and Pu with various emission intensities. The value of emission intensity corresponds to concentration of element in the sample. Hence, the characteristics of the amethysts are based on their concentration value. The element with the highest concentration in all samples is Si, which is related to the chemical formula of SiO2. The element with the lowest concentration in all samples is Ca that is found in black and yellow amethysts. The emission intensity of Fe element can distinguish between white, purple, and yellow amethyst. If Fe emission intensity is very low, it indicates yellow sample. Thus, we may conclude that LIBS is a method that can be used to characterize the amethyst samples.Key words: amethyst, impurity, laser-induced, breakdown spectroscopy, characteristic, gemstones

Solid Supported Ruthenium Complexes for Olefin Metathesis

2013 ◽  
Vol 17 (22) ◽  
pp. 2592-2608 ◽  
Author(s):  
Fatma Hamad ◽  
Cheng Kai ◽  
Yuan Cai ◽  
Yu Xie ◽  
Yin Lu ◽  
...  
Keyword(s):  
Olefin Metathesis ◽  
Ruthenium Complexes
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