Volumetric, Viscometric and Spectroscopic Properties of Glycylglycine in Citrate and Acetate Buffer Solutions at Different Temperatures

2021 ◽  
Author(s):  
Poonam Patyar ◽  
Gurpreet Kaur
Keyword(s):  
Spectroscopic Properties ◽  
Acetate Buffer ◽  
Buffer Solutions ◽  
Different Temperatures

scholarly journals Temperature-Dependent Stimulated Emission Cross-Section in Nd3+:YLF Crystal

Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 431
Author(s):  
Giorgio Turri ◽  
Scott Webster ◽  
Michael Bass ◽  
Alessandra Toncelli
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Room Temperature ◽  
Radiative Decay ◽  
Emission Cross Section ◽  
Spectroscopic Properties ◽  
Stimulated Emission ◽  
Different Temperatures ◽  
Stimulated Emission Cross Section ◽  
Semi Empirical

Spectroscopic properties of neodymium-doped yttrium lithium fluoride were measured at different temperatures from 35 K to 350 K in specimens with 1 at% Nd3+ concentration. The absorption spectrum was measured at room temperature from 400 to 900 nm. The decay dynamics of the 4F3/2 multiplet was investigated by measuring the fluorescence lifetime as a function of the sample temperature, and the radiative decay time was derived by extrapolation to 0 K. The stimulated-emission cross-sections of the transitions from the 4F3/2 to the 4I9/2, 4I11/2, and 4I13/2 levels were obtained from the fluorescence spectrum measured at different temperatures, using the Aull–Jenssen technique. The results show consistency with most results previously published at room temperature, extending them over a broader range of temperatures. A semi-empirical formula for the magnitude of the stimulated-emission cross-section as a function of temperature in the 250 K to 350 K temperature range, is presented for the most intense transitions to the 4I11/2 and 4I13/2 levels.

Effect of Ethanol on Enzymatic Activity of Fungal Laccases

1999 ◽  
Vol 19 (6) ◽  
pp. 589-600 ◽  
Author(s):  
J. Rodakiewicz-Nowak ◽  
J. Haber ◽  
N. Pozdnyakova ◽  
A. Leontievsky ◽  
L. A. Golovleva
Keyword(s):  
Enzymatic Activity ◽  
Coriolus Versicolor ◽  
Acetate Buffer ◽  
Fungal Laccases ◽  
Mixed Inhibition ◽  
Inhibition Model ◽  
Buffer Solutions ◽  
Panus Tigrinus ◽  
Yellow Laccase

Blue laccase from Coriolus versicolor and blue and yellow laccases from Panus tigrinus were isolated, purified and studied in acetate buffer solutions, with and without addition of various amounts of ethanol, using syringaldazine and 2,6-dimethoxyphenol as substrates. Effect of ethanol on blue laccases could be successfully described using the mixed inhibition model, over the range of 0–2.5 M ethanol concentrations. Yellow laccase from P. tigrinus behaves differently, which may be explained by the presence of some extra molecules in its structure, which possibly stabilize the enzyme and might be exchanged in ethanol solutions.

Degradation of mitomycin C in acid phosphate and acetate buffer solutions

1986 ◽  
Vol 32 (2-3) ◽  
pp. 111-121 ◽  
Author(s):  
J.H. Beijnen ◽  
R.H. Fokkens ◽  
H. Rosing ◽  
W.J.M. Underberg
Keyword(s):  
Mitomycin C ◽  
Acetate Buffer ◽  
Acid Phosphate ◽  
Buffer Solutions

The Cathodic and Anodic Behavior of Iron in Acetate Buffer Solutions

1990 ◽  
Vol 137 (10) ◽  
pp. 3023-3029 ◽  
Author(s):  
K. Takahashi ◽  
B. MacDougall ◽  
M. J. Graham
Keyword(s):  
Acetate Buffer ◽  
Anodic Behavior ◽  
Buffer Solutions
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