Solvation of Extracted Complex Metal Acids. III. The HFeCl4-Diethyl Ether System

1967 ◽  
Vol 89 (3) ◽  
pp. 486-489 ◽  
Author(s):  
David A. Meyers ◽  
R. L. McDonald
Keyword(s):  
Diethyl Ether ◽  
Complex Metal ◽  
Ether System

RADIOIMMUNOASSAY OF OESTRONE AND OESTRADIOL IN THE PERIPHERAL PLASMA OF THE DOMESTIC FOWL IN VARIOUS PHYSIOLOGICAL STATES AND OF HYPOPHYSECTOMIZED AND OVARIECTOMIZED FOWLS

1974 ◽  
Vol 75 (1) ◽  
pp. 133-140 ◽  
Author(s):  
B. E. Senior
Keyword(s):  
Bovine Serum Albumin ◽  
Serum Albumin ◽  
Diethyl Ether ◽  
Bovine Serum ◽  
Domestic Fowl ◽  
Laying Hens ◽  
Peripheral Plasma ◽  
The Mean ◽  
Precision And Accuracy ◽  
Chicken Ovary

ABSTRACT A radioimmunoassay was developed to measure the levels of oestrone and oestradiol in 0.5–1.0 ml of domestic fowl peripheral plasma. The oestrogens were extracted with diethyl ether, chromatographed on columns of Sephadex LH-20 and assayed with an antiserum prepared against oestradiol-17β-succinyl-bovine serum albumin using a 17 h incubation at 4°C. The specificity, sensitivity, precision and accuracy of the assays were satisfactory. Oestrogen concentrations were determined in the plasma of birds in various reproductive states. In laying hens the ranges of oestrone and oestradiol were 12–190 pg/ml and 29–327 pg/ml respectively. Levels in immature birds, in adult cockerels and in an ovariectomized hen were barely detectable. The mean concentrations of oestrone and oestradiol in the plasma of four non-laying hens (55 pg/ml and 72 pg/ml respectively) and one partially ovariectomized hen (71 pg/ml and 134 pg/ml respectively) were well within the range for laying hens. It is evident that the large, yolk-filled follicles are not the only source of oestrogens in the chicken ovary.

Excess volumes and refractive indices in the benzene-tert-amyl methyl ether and cyclohexane-tert-amyl methyl ether systems at 298.15 K

1987 ◽  
Vol 52 (12) ◽  
pp. 2839-2843 ◽  
Author(s):  
Jan Linek
Keyword(s):  
Methyl Ether ◽  
Excess Molar Volumes ◽  
Excess Volumes ◽  
Refractive Indices ◽  
Molar Volumes ◽  
Vibrating Tube Densimeter ◽  
Ether System

Excess molar volumes in the benzene-tert-amyl methyl ether and cyclohexane-tert-amyl methyl ether systems were measured by a vibrating-tube densimeter at 298.15 K and compared with the data for the methanol-tert-amyl methyl ether system determined previously. Besides, the refractive indices in both the systems were measured at the same temperature.

scholarly journals N-[(1R)-1-(4-Chlorophenyl)ethyl]-Cyanamide

Molbank ◽  
10.3390/m1198 ◽  
2021 ◽  
Vol 2021 (2) ◽  
pp. M1198
Author(s):  
Rebeca González-Fernández ◽  
Pascale Crochet ◽  
Victorio Cadierno
Keyword(s):  
1H Nmr ◽  
Diethyl Ether ◽  
Title Compound ◽  
Cyanogen Bromide ◽  
Specific Rotation

The title compound was synthesized by electrophilic cyanation of commercially available (R)-4-chloro-α-methylbenzylamine with cyanogen bromide in diethyl ether, and isolated as a yellow oil in 84% yield. It was characterized by 1H and 13C{1H] NMR, IR, HRMS, and specific rotation measurements.

Shedding Light on the Effect of Diethyl Ether Antisolvent on the Growth of (CH3NH3) PbI3 Thin Films

JOM ◽  
2021 ◽  
Author(s):  
Amal Bouich ◽  
Bernabé Mari ◽  
Lahoucine Atourki ◽  
Shafi Ullah ◽  
Mohamed Ebn Touhami
Keyword(s):  
Thin Films ◽  
Diethyl Ether

scholarly journals Cytotoxic and antigenotoxic properties of phenolic compound isolated from the fruit of Terminalia chebula on HeLa cell

2019 ◽  
Vol 8 (1) ◽  
Author(s):  
K. Soumya ◽  
Jesna James ◽  
T. M. Archana ◽  
A. T. Dhanya ◽  
A. P. Shahid ◽  
...  
Keyword(s):  
Dna Damage ◽  
Gallic Acid ◽  
Phenolic Compound ◽  
Diethyl Ether ◽  
Hela Cells ◽  
Protective Role ◽  
Terminalia Chebula ◽  
Diethyl Ether Extract ◽  
Toxic Concentration ◽  
Isolated Compound

Abstract Background DNA in a human cell is subjected to constant assault from both environmental factors and normal metabolic processes. Accumulation of DNA damage drives the progression of many health disorders like aging, cancer, diabetes, and neurodegenerative disorders. Results The present study focuses on the isolation of phenolic compound from the fruit of Terminalia chebula and its protective role on induced DNA damage. Diethyl ether and ethyl acetate extract of Terminalia chebula fruit were subjected to column chromatographic purification, and the fractions obtained were tested for the presence of phenolics. Fraction-12 isolated from diethyl ether extract was identified as gallic acid, which is used for cytotoxic and DNA damage protection activity assays. To select a non-toxic concentration of isolated compound, cytotoxicity was assessed by MTT assay. Gallic acid showed moderate toxicity at the highest concentration tested (i.e., percentage cell viability at 100 μg/ml is 40.51 ± 1.31). Antigenotoxic effect of gallic acid on HeLa cells was carried by alkaline comet assay. The compound showed significant protective abilities against hydrogen peroxide-induced DNA damage in HeLa cells. Conclusion These results show the importance of gallic acid isolated from Terminalia chebula fruit, as protector of oxidative stress-induced DNA damage.

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