Features of the composition of vanadyl porphyrins in the crude extract of asphaltenes of heavy oil with high vanadium content

2016 ◽  
Vol 34 (2) ◽  
pp. 177-183 ◽  
Author(s):  
M. R. Yakubov ◽  
D. V. Milordov ◽  
S. G. Yakubova ◽  
D. N. Borisov ◽  
P. I. Gryaznov ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Crude Extract ◽  
Vanadium Content

A Study of the Short Range Pollution Around a Power Plant Using Heavy Fuel Oil by Analysing Vanadium in Lichens

1983 ◽  
Vol 15 (1) ◽  
pp. 89-93 ◽  
Author(s):  
S. Nygård ◽  
L. Harju
Keyword(s):  
Power Plant ◽  
Chemical Analysis ◽  
Heavy Oil ◽  
Short Range ◽  
Vanadium Content ◽  
Fuel Oil ◽  
Plasma Emission ◽  
Hypogymnia Physodes ◽  
Heavy Fuel Oil ◽  
Dc Plasma

AbstractThe vanadium content of the lichen Hypogymnia physodes was determined in the vicinity of a power plant using heavy oil as fuel. For the chemical analysis a DC plasma emission spectrometer was used. Air dried samplesof the lichen contained between 1–4 and 57 parts per million (ppm) of vanadium. The highest concentrations were found in specimens collected less than 1 km from the power plant. Lichens collected 50 km from the plant contained less than 2 ppm of vanadium.

A Comparative Analysis of Vanadyl Porphyrins Isolated from Heavy Oil Asphaltenes with High and Low Vanadium Content

2022 ◽  
Author(s):  
S. G. Yakubova ◽  
G. R. Abilova ◽  
E. G. Tazeeva ◽  
D. I. Tazeev ◽  
N. A. Mironov ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Heavy Oil ◽  
Vanadium Content

Antiandrogenic effect of crude extract of C-heavy oil

2000 ◽  
Vol 12 (1-2) ◽  
pp. 97-102 ◽  
Author(s):  
Ryoichi Kizu ◽  
Katsuaki Ishii ◽  
Jun Kobayashi ◽  
Takuma Hashimoto ◽  
Eitetsu Koh ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Crude Extract ◽  
Antiandrogenic Effect

The Heavy Oil Engine—II

1918 ◽  
Vol 86 (2222supp) ◽  
pp. 78-80
Author(s):  
Charles E. Lucke
Keyword(s):  
Heavy Oil

Genotoxicity evaluation in vitro by comet assay of compound and crude extract obtained from P. Pubescens Benth.

Planta Medica ◽  
2015 ◽  
Vol 81 (11) ◽  
Author(s):  
VHS Souza ◽  
A Paula OHohne ◽  
R Grando ◽  
N de Cassia de Almeida Queiroz ◽  
GM Pastore ◽  
...  
Keyword(s):  
Comet Assay ◽  
Crude Extract

Phytochemical screening for identification of bioactive compounds of Lantana camara Linn. (Verbenaceae) responsible for larvicidal action against Aedes triseriatus Say, 1823 (Diptera : Culicidae)

ENTOMON ◽  
2019 ◽  
Vol 44 (2) ◽  
pp. 117-126
Author(s):  
Rhitayu Chakraborti ◽  
Probir Kumar Bandyopadhyay
Keyword(s):  
Ethyl Acetate ◽  
Bioactive Compounds ◽  
Active Ingredient ◽  
Crude Extract ◽  
Ethyl Acetate Extract ◽  
Lantana Camara ◽  
Mosquito Larvae ◽  
Aedes Triseriatus ◽  
Phytochemical Screening ◽  
Lc50 Value

Study to assess the larvicidal property of Lantana camara leaves against Aedes triseriatus larvae found that the ethyl acetate extract had profound larvicidal action with the crude extract having a LC50 value of 409.831ppm. GC-MS analysis of the ethyl acetate extract confirmed the presence of twenty-one compounds out of which beta-caryophyllene covered the highest percentage of the chromatogram area. Further tests with beta-caryophyllene against the mosquito larvae proved it to be the active ingredient of L. Camara with a LC50 value of 104.243ppm.

Evaluation of a crude extract administration of Cnidoscolus chayamansa in normal and diabetic Wistar rats

2014 ◽  
Author(s):  
Francis Echeverria-Bobadilla ◽  
Andrea Ceballos-Arana ◽  
Daniel Sanchez-Ruz ◽  
Elda Pacheco-Pantoja
Keyword(s):  
Crude Extract ◽  
Wistar Rats ◽  
Cnidoscolus Chayamansa
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