Selective Extraction and Recovery of Cytochromecby Liquid−Liquid Extraction Using a Calix[6]arene Carboxylic Acid Derivative

Langmuir ◽  
2005 ◽  
Vol 21 (16) ◽  
pp. 7280-7284 ◽  
Author(s):  
Tatsuya Oshima ◽  
Hiroaki Higuchi ◽  
Keisuke Ohto ◽  
Katsutoshi Inoue ◽  
Masahiro Goto
Keyword(s):  
Carboxylic Acid ◽  
Acid Derivative ◽  
Selective Extraction ◽  
Liquid Extraction ◽  
Liquid Liquid Extraction ◽  
Carboxylic Acid Derivative

scholarly journals Application of the Dehydration Homogeneous Liquid–Liquid Extraction (DHLLE) Sample Preparation Method for Fingerprinting of Honey Volatiles

Molecules ◽  
2021 ◽  
Vol 26 (8) ◽  
pp. 2277
Author(s):  
Piotr M. Kuś ◽  
Igor Jerković
Keyword(s):  
Carboxylic Acid ◽  
Sample Preparation ◽  
Preparation Method ◽  
Liquid Extraction ◽  
Sample Preparation Method ◽  
Phenyllactic Acid ◽  
Homogeneous Liquid ◽  
Liquid Liquid Extraction ◽  
Wide Range ◽  
Chemical Groups

Recently, we proposed a new sample preparation method involving reduced solvent and sample usage, based on dehydration homogeneous liquid–liquid extraction (DHLLE) for the screening of volatiles and semi-volatiles from honey. In the present research, the method was applied to a wide range of honeys (21 different representative unifloral samples) to determine its suitability for detecting characteristic honey compounds from different chemical classes. GC-FID/MS disclosed 130 compounds from different structural and chemical groups. The DHLLE method allowed the extraction and identification of a wide range of previously reported specific and nonspecific marker compounds belonging to different chemical groups (including monoterpenes, norisoprenoids, benzene derivatives, or nitrogen compounds). For example, DHLLE allowed the detection of cornflower honey chemical markers: 3-oxo-retro-α-ionols, 3,4-dihydro-3-oxoedulan, phenyllactic acid; coffee honey markers: theobromine and caffeine; linden honey markers: 4-isopropenylcyclohexa-1,3-diene-1-carboxylic acid and 4-(2-hydroxy-2-propanyl)cyclohexa-1,3-diene-1-carboxylic acid, as well as furan derivatives from buckwheat honey. The obtained results were comparable with the previously reported data on markers of various honey varieties. Considering the application of much lower volumes of very common reagents, DHLLE may provide economical and ecological advantages as an alternative sample preparation method for routine purposes.

scholarly journals A Novel Potent Indazole Carboxylic Acid Derivative Blocks Spermatogenesis and Is Contraceptive in Rats after a Single Oral Dose1

2008 ◽  
Vol 78 (6) ◽  
pp. 1127-1138 ◽  
Author(s):  
Joseph S. Tash ◽  
Barbara Attardi ◽  
Sheri A. Hild ◽  
Ramappa Chakrasali ◽  
Sudhakar R. Jakkaraj ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Acid Derivative ◽  
Carboxylic Acid Derivative

scholarly journals Tantalum and Niobium Selective Extraction by Alkyl-Acetophenone

Metals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 654 ◽  
Author(s):  
Moussa Toure ◽  
Guilhem Arrachart ◽  
Jean Duhamet ◽  
Stephane Pellet-Rostaing
Keyword(s):  
Extraction Efficiency ◽  
Methyl Isobutyl Ketone ◽  
Selective Extraction ◽  
Extraction Process ◽  
Liquid Extraction ◽  
Methyl Isobutyl ◽  
Isobutyl Ketone ◽  
Waste Solution ◽  
Liquid Liquid Extraction ◽  
D Values

A study has been carried out on Ta and Nb recovery by a liquid-liquid extraction process using 4-methylacetophenone (4-MAcPh) as the organic phase. The 4-MAcPh was compared to methyl isobutyl ketone (MIBK) with respect to extraction efficiencies (D values) at different concentrations of H2SO4 in the aqueous phase. The results showed a similar extraction of Nb for both solvents. However, for Ta, extraction efficiency is increased by a factor of 1.3 for 4-MAcPh. In addition, the MIBK solubilized completely after 6 mol∙L−1 of H2SO4 against only a loss of 0.14–4% for 4-MAcPh between 6 and 9 mol∙L−1 of H2SO4. The potential of 4-MAcPh has also been studied to selectively recover Ta from a model capacitor waste solution. The results showed a selectivity for Ta in the presence of impurities such as Ag, Fe, Ni and Mn. The 4-MAcPh also presents the advantage of having physicochemical properties adapted to its use in liquid-liquid extraction technologies such as mixer-settlers.

scholarly journals The Effects of the Indazole Carboxylic Acid Derivative, Tolnidamine, on Testicular Function: I

1985 ◽  
Vol 6 (3) ◽  
pp. 171-178 ◽  
Author(s):  
IRVING M. SPITZ ◽  
GLEN L. GUNSALUS ◽  
JENNIE P. MATHER ◽  
ROSEMARIE THAU ◽  
C. WAYNE BARDIN
Keyword(s):  
Carboxylic Acid ◽  
Acid Derivative ◽  
Testicular Function ◽  
Carboxylic Acid Derivative

scholarly journals Third-Order Nonlinear Optical Properties of a Carboxylic Acid Derivative

2018 ◽  
Vol 65 (3) ◽  
pp. 739-749 ◽  
Author(s):  
Clodoaldo Valverde ◽  
Sizelizio Alves de Lima e Castro ◽  
Gabriela Rodrigues Vaz ◽  
Jorge Luiz de Almeida Ferreira ◽  
Basílio Baseia ◽  
...  
Keyword(s):  
Optical Properties ◽  
Carboxylic Acid ◽  
Acid Derivative ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Third Order ◽  
Carboxylic Acid Derivative

Probing the pH dependent electrochemistry of a novel quinoxaline carboxylic acid derivative at a glassy carbon electrode

2014 ◽  
Vol 147 ◽  
pp. 121-128 ◽  
Author(s):  
Aamir Hassan Shah ◽  
Afzal Shah ◽  
Salah Ud-Din Khan ◽  
Usman Ali Rana ◽  
Hidayat Hussain ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Glassy Carbon Electrode ◽  
Acid Derivative ◽  
Glassy Carbon ◽  
Carbon Electrode ◽  
Ph Dependent ◽  
Carboxylic Acid Derivative
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