scholarly journals Rapid Determination of Ethanol in Food by Combination of Quinone-dependent Alcohol Dehydrogenase Reaction and Self-driven Coulometry.

1995 ◽  
Vol 42 (3) ◽  
pp. 163-168
Author(s):  
Kazuyo KAJINO ◽  
Ko FURUKAWA ◽  
Hiroaki EBISUYA ◽  
Masahiro FUKAYA ◽  
Sumio AKITA ◽  
...  
Keyword(s):  
Alcohol Dehydrogenase ◽  
Rapid Determination ◽  
Dehydrogenase Reaction

Rapid determination of erythrocyte pyruvate kinase activity

1993 ◽  
Vol 39 (3) ◽  
pp. 512-516 ◽  
Author(s):  
A Mosca ◽  
A Tagarelli ◽  
R Paleari ◽  
P Scarpelli ◽  
C Brancati
Keyword(s):  
Pyruvate Kinase ◽  
Rapid Determination ◽  
Reference Method ◽  
Normal Subjects ◽  
Reference Intervals ◽  
International Committee ◽  
Pyruvate Kinase Activity ◽  
Dehydrogenase Reaction ◽  
Assay Conditions

Abstract We report a new potentiometric method for determining pyruvate kinase (PK). Enzymatic activity is measured by monitoring the change in pH produced in the reaction buffer under International Committee for Standardization in Haematology (ICSH) standardized assay conditions, and the lactate dehydrogenase reaction is automatically subtracted in each measuring cycle. The analysis, performed at 37 degrees C, requires a 10-microL sample (isolated erythrocytes or whole blood) and is completed in 2.5 min. The intra-assay CV is < 4% (PK between 3 and 35 U/g Hb); the interassay CV is 4.0% (PK 15 U/g Hb); results are linear from 3 to 30 U/g Hb. A good correlation with the ICSH reference method (x) was found: y = 1.011x - 0.05; n = 32; r = 0.9939; Sylx = 0.75 (units: U/g Hb). The reference intervals of the PK activity in isolated erythrocytes (RBC-PK) were estimated in 89 normal subjects. We found that women possess a higher RBC-PK than do men (P < 0.0001) and that the biological variability (CVb) of RBC-PK is 13.5%. Applications of the proposed method to the hematological routine are reported.

Weak Beam Imaging and Diffraction Studies of Stacking Faults in Silicon

1976 ◽  
Vol 34 ◽  
pp. 590-591
Author(s):  
T. Y. Tan ◽  
W. K. Tice
Keyword(s):  
Fast Neutron ◽  
Rapid Determination ◽  
Stacking Faults ◽  
Imaging Method ◽  
Large Reduction ◽  
Dislocation Loops ◽  
Fringe Spacing ◽  
Weak Beam ◽  
Kinematical Theory

In studying ion implanted semiconductors and fast neutron irradiated metals, the need for characterizing small dislocation loops having diameters of a few hundred angstrom units usually arises. The weak beam imaging method is a powerful technique for analyzing these loops. Because of the large reduction in stacking fault (SF) fringe spacing at large sg, this method allows for a rapid determination of whether the loop is faulted, and, hence, whether it is a perfect or a Frank partial loop. This method was first used by Bicknell to image small faulted loops in boron implanted silicon. He explained the fringe spacing by kinematical theory, i.e., ≃l/(Sg) in the fault fringe in depth oscillation. The fault image contrast formation mechanism is, however, really more complicated.

Methods for rapid determination of pecan (Carya illinoensis) seed viability

2017 ◽  
Vol 45 (2) ◽  
pp. 455-464
Author(s):  
T.T. Xue ◽  
J. Liu ◽  
Y.B. Shen ◽  
G.Q. Liu
Keyword(s):  
Rapid Determination ◽  
Seed Viability ◽  
Carya Illinoensis
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