The Microtome Method of the Determination of the Absolute Amount of Adsorption

1932 ◽  
Vol 36 (1) ◽  
pp. 300-311 ◽  
Author(s):  
J. W. McBain ◽  
C. W. Humphreys
Keyword(s):  
Absolute Amount ◽  
The Absolute

scholarly journals Hydroxide in olivine: A quantitative determination of the absolute amount and calibration of the IR spectrum

2003 ◽  
Vol 108 (B2) ◽  
Author(s):  
David R. Bell ◽  
George R. Rossman ◽  
Joachim Maldener ◽  
Denis Endisch ◽  
Friedel Rauch
Keyword(s):  
Quantitative Determination ◽  
Ir Spectrum ◽  
Absolute Amount ◽  
The Absolute

Hydroxide in kyanite: A quantitative determination of the absolute amount and calibration of the IR spectrum

2004 ◽  
Vol 89 (7) ◽  
pp. 998-1003 ◽  
Author(s):  
David. R. Bell ◽  
George R. Rossman ◽  
Joachim Maldener ◽  
Denis Endisch ◽  
Friedel Rauch
Keyword(s):  
Quantitative Determination ◽  
Ir Spectrum ◽  
Absolute Amount ◽  
The Absolute

INFLUENCE OF STRESS AND ENDOCRINE FACTORS ON PLASMA PROTEINS IN THE RAT

1959 ◽  
Vol XXXII (IV) ◽  
pp. 552-562 ◽  
Author(s):  
Lennart Enerbäck ◽  
Per M. Lundin ◽  
Jan Mellgren
Keyword(s):  
Serum Protein ◽  
Serum Proteins ◽  
Albino Rats ◽  
Absolute Amount ◽  
Electrophoretic Separation ◽  
Hypophysectomized Rats ◽  
Endocrine Factors ◽  
The Absolute ◽  
Electrophoretic Spectrum

ABSTRACT The effects have been studied in albino rats of experimental stress, adrenalectomy, hypophysectomy and somatotrophin (STH) on the relative serum protein fractions, as determined from estimations of serum protein concentrations and the results of paper electrophoretic separation. In addition, the absolute amounts of serum proteins obtained from concurrent electrophoretic separation, estimation of serum protein concentration and determination of plasma volume were studied. It appeared inter alia that hypophysectomy gave rise to a reduction in the absolute amount of serum proteins, which was due to a reduction in the albumin + alpha1 globulin fraction while the other globulin fractions remained unaffected. STH administration caused an increase in both the albumin and globulin fractions in hypophysectomized rats. Formalin stress was accompanied by changes in the electrophoretic spectrum suggesting an increased globulin synthesis. Since stress is known to give rise to a proliferation of the lymphoid organs which, at least to some extent, is caused by STH we consider it justifiable to conclude that the probable enhancement of globulin synthesis accompanying stress is due to the action of STH.

Polarity Determination in Sphalerite and Wurtzite Structures

1990 ◽  
Vol 48 (2) ◽  
pp. 500-501
Author(s):  
Stuart McKernan ◽  
C. Barry Carter
Keyword(s):  
Opposite Polarity ◽  
Single Domain ◽  
Polar Material ◽  
Electron Microscopic ◽  
Dynamical Interaction ◽  
X Ray ◽  
Polarity Determination ◽  
The Absolute ◽  
Microscopic Techniques

The determination of the absolute polarity of a polar material is often crucial to the understanding of the defects which occur in such materials. Several methods exist by which this determination may be performed. In bulk, single-domain specimens, macroscopic techniques may be used, such as the different etching behavior, using the appropriate etchant, of surfaces with opposite polarity. X-ray measurements under conditions where Friedel’s law (which means that the intensity of reflections from planes of opposite polarity are indistinguishable) breaks down can also be used to determine the absolute polarity of bulk, single-domain specimens. On the microscopic scale, and particularly where antiphase boundaries (APBs), which separate regions of opposite polarity exist, electron microscopic techniques must be employed. Two techniques are commonly practised; the first [1], involves the dynamical interaction of hoLz lines which interfere constructively or destructively with the zero order reflection, depending on the crystal polarity. The crystal polarity can therefore be directly deduced from the relative intensity of these interactions.

A DORIS determination of the absolute velocities of the Sorsdal and Mellor glaciers in Antarctica

2010 ◽  
Vol 45 (12) ◽  
pp. 1523-1534 ◽  
Author(s):  
R. Govind ◽  
J.J. Valette ◽  
F.G. Lemoine
Keyword(s):  
The Absolute

scholarly journals Rapid Organocatalytic Chirality Analysis of Amines, Amino Acids, Alcohols, Amino Alcohols and Diols with Achiral Iso(thio)cyanate Probes

2021 ◽  
Author(s):  
Eryn Nelson ◽  
Jeffrey S. S. K. Formen ◽  
Christian Wolf
Keyword(s):  
Amino Acids ◽  
Absolute Configuration ◽  
Rapid Determination ◽  
Amino Alcohols ◽  
Enantioselective Synthesis ◽  
Widespread Occurrence ◽  
Chiral Compounds ◽  
New Methods ◽  
The Absolute

The widespread occurrence and significance of chiral compounds does not only require new methods for their enantioselective synthesis but also efficient tools that allow rapid determination of the absolute configuration,...

scholarly journals Preparative-scale HPLC Resolution of Metallacyclic η3-Allyltricarbonyliron Complexes and Determination of the Absolute Configuration by X-Ray Crystal Structure Analysis

1999 ◽  
Vol 23 (9) ◽  
pp. 578-579
Author(s):  
Rainer Schobert ◽  
Hermann Pfab ◽  
Jutta Böhmer ◽  
Frank Hampel ◽  
Andreas Werner
Keyword(s):  
Crystal Structure ◽  
Silica Gel ◽  
Structure Analysis ◽  
Absolute Configuration ◽  
Crystal Structure Analysis ◽  
Preparative Scale ◽  
X Ray ◽  
The Absolute

Racemates of (η3-allyl)tricarbonyliron lactone complex Fe(CO)3{η1:η3-C(O)XCH2CHCMeCH2} 1a (X = O) and (η3-allyl)tricarbonyliron lactam complex 2a (X = NMe) are resolved on a preparative scale by HPLC on cellulose tris(3,5-dimethylphenyl)carbamate/silica gel RP-8 and the absolute configuration of (-)-2a is determined by X-ray crystal structure analysis.

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