scholarly journals Characterization of Firing Range Soil from Camp Edwards, MA, and the Efficacy of Acid and Alkaline Hydrolysis for the Remediation of M1 105mm M67 Propellant

2013 ◽  
Author(s):  
David B. Gent ◽  
Jared L. Johnson ◽  
Ian T. Osgerby
Keyword(s):  
Alkaline Hydrolysis ◽  
Firing Range ◽  
Firing Range Soil

Stabilization of Pb2+ and Cu2+ contaminated firing range soil using calcined oyster shells and waste cow bones

Chemosphere ◽  
2013 ◽  
Vol 91 (9) ◽  
pp. 1349-1354 ◽  
Author(s):  
Deok Hyun Moon ◽  
Kyung Hoon Cheong ◽  
Jeehyeong Khim ◽  
Mahmoud Wazne ◽  
Seunghun Hyun ◽  
...  
Keyword(s):  
Firing Range ◽  
Firing Range Soil

scholarly journals Characterization of sedimentary humic matter by alkaline hydrolysis

1983 ◽  
Vol 5 (3) ◽  
pp. 131-142 ◽  
Author(s):  
Richard A. Bourbonniere ◽  
Philip A. Meyers
Keyword(s):  
Alkaline Hydrolysis ◽  
Humic Matter

Identification and structural characterization of four novel degradation products and a process impurity of isavuconazonium sulfate for injection formulation bulk by LC-ESI-QTOF-MS/MS

2019 ◽  
Vol 26 (2) ◽  
pp. 144-152
Author(s):  
Venkata Rama Prabhakara Sastry Regella ◽  
Venkatesan Chidambaram Subramanian ◽  
Sarveswara Sastry Bhetanabhotla
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Tandem Mass Spectrometry ◽  
Structural Characterization ◽  
Alkaline Hydrolysis ◽  
Degradation Products ◽  
Water Soluble ◽  
Tandem Mass ◽  
Light Conditions

Isavuconazonium sulfate is a highly water-soluble pro-drug of active triazole isavuconazole. The degradation profile of isavuconazonium sulfate for injection formulation bulk under acid hydrolysis, alkaline hydrolysis, oxidation, heat, and light conditions was studied using LC-PDA/MS technique. Four degradation products (DP1 to DP4) and one process impurity (PI1) were identified in isavuconazonium sulfate formulation bulk and characterized the identified impurities by liquid chromatography-electron spray ionization-quadruple-time of flight tandem mass spectrometry. Isavuconazole (DP1) was found to be one of the major degradation products of isavuconazonium sulfate.

Characterization of lignin residues derived from the alkaline hydrolysis of glycol lignin

1990 ◽  
Vol 68 (1) ◽  
pp. 82-89 ◽  
Author(s):  
Ronald W. Thring ◽  
Esteban Chornet ◽  
Jean Bouchard ◽  
Pierre F. Vidal ◽  
Ralph P. Overend
Keyword(s):  
Alkaline Hydrolysis ◽  
Size Exclusion ◽  
Absorption Intensity ◽  
Molecular Weights ◽  
Carbon Carbon Bonds ◽  
Lower Oxygen ◽  
Exclusion Chromatography ◽  
Hydrolysis Of ◽  
C Nmr

Lignin residues from the alkaline hydrolysis of solvolytic lignin have been characterized by elemental analysis, size exclusion chromatography, Fourier transform infrared spectroscopy, 13C NMR, and for methoxyl content. All lignin residues were found to have higher carbon and lower oxygen contents than the original glycol lignin. Methoxyl contents decreased with increasing severity of treatment. All treated lignins have lower molecular weights than the original, which is indicative of the extensive depolymerization of glycol lignin by alkaline hydrolysis. The appearance of new bands in the 3050–2800 cm−1 and 900–800 cm−1 regions in the infrared spectra along with increasing absorption intensity under more severe conditions demonstrates that, despite the tendency to depolymerization, new carbon–carbon bonds are formed due to repolymerization reactions. 13C NMR revealed that extensive cleavage of the side chains and β-O-4 interunit linkages had occurred during alkaline hydrolysis and that the new bonds formed due to condensation reactions at higher severities are of the methine, methylene, methyl and carboxyl types. Keywords: residual lignins, alkaline hydrolysis, characterization.

Characterization of silicone phases by alkaline hydrolysis and CGC analysis

1985 ◽  
Vol 8 (9) ◽  
pp. 513-515 ◽  
Author(s):  
I. Temmerman ◽  
P. Sandra ◽  
M. Verzele
Keyword(s):  
Alkaline Hydrolysis

Alkaline Hydrolysis/Polymerization of 2,4,6-Trinitrotoluene:  Characterization of Products by13C and15N NMR

2004 ◽  
Vol 38 (7) ◽  
pp. 2224-2231 ◽  
Author(s):  
Kevin A. Thorn ◽  
Philip G. Thorne ◽  
Larry G. Cox
Keyword(s):  
Alkaline Hydrolysis

Stabilization of lead and copper contaminated firing range soil using calcined oyster shells and fly ash

2013 ◽  
Vol 35 (6) ◽  
pp. 705-714 ◽  
Author(s):  
Deok Hyun Moon ◽  
Jae-Woo Park ◽  
Kyung Hoon Cheong ◽  
Seunghun Hyun ◽  
Agamemnon Koutsospyros ◽  
...  
Keyword(s):  
Fly Ash ◽  
Firing Range ◽  
Copper Contaminated ◽  
Firing Range Soil

AN ASSAY PROCEDURE AND PARTIAL CHARACTERIZATION OF A FACTOR IN YEAST AUTOLYSATE ESSENTIAL FOR THE GROWTH OF ACETOBACTER GLUCONICUM STRAIN 2G

1958 ◽  
Vol 4 (5) ◽  
pp. 463-468 ◽  
Author(s):  
C. L. Goldman ◽  
W. Litsky ◽  
M. Mandel ◽  
H. N. Little
Keyword(s):  
Experimental Evidence ◽  
Ethyl Ether ◽  
Alkaline Hydrolysis ◽  
Partial Characterization ◽  
Yeast Autolysate ◽  
Assay Procedure ◽  
Cationic Resin ◽  
Unknown Factor ◽  
Growth Promoting

An assay procedure is described for an unknown factor in yeast autolysate essential for the growth of the assay organism, Acetobacter gluconicum strain 2G. The experimental evidence appears to suggest the following characteristics for the substance or substances in yeast autolysate: unaffected by acid or alkaline hydrolysis; more soluble in alcohol and acetone than chloroform; extractable by ethyl ether at pH 2.0, but not at pH 10; and growth-promoting activity is associated with material adsorbed by an anionic but not by a cationic resin. The evidence appears to indicate that the growth-promoting activity in yeast autolysate is associated with acidic substances.

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