Reaction of Some Metallic Oxides with Liquid Dinitrogen Tetroxide. Oxides of the First and Second Periodic Groups and Lead1

1953 ◽  
Vol 75 (22) ◽  
pp. 5747-5748 ◽  
Author(s):  
John R. Ferraro ◽  
George Gibson
Keyword(s):  
Metallic Oxides ◽  
Dinitrogen Tetroxide ◽  
Periodic Groups

Simultaneous Determination of Serum Cholesterol and Triglycerides after Preliminary Column Chromatography

1975 ◽  
Vol 21 (3) ◽  
pp. 428-431 ◽  
Author(s):  
Godfrey Moses ◽  
Edwin Olivero ◽  
Thomas F Draisey
Keyword(s):  
Phase Separation ◽  
Simultaneous Determination ◽  
Column Chromatography ◽  
Serum Cholesterol ◽  
Simultaneous Estimation ◽  
Traditional Methods ◽  
Metallic Oxides ◽  
Centrifugation Step ◽  
Stability Results

Abstract An isopropanolic extract of serum can be made suitable for the simultaneous estimation of cholesterol and triglycerides by passing it through a commercially-available chromatographic column containing activated metallic oxides in which alumina predominates. No centrifugation step nor phase separation is required. Use of the purified extract allows existing methods to be simplified and shortened without loss of reproducibility or stability. Results compare well with those obtained by traditional methods.

scholarly journals Certain locally nilpotent varieties of groups

2003 ◽  
Vol 67 (1) ◽  
pp. 115-119
Author(s):  
Alireza Abdollahi
Keyword(s):  
Prime Power ◽  
Power Exponent ◽  
Variety Of Groups ◽  
Periodic Groups ◽  
Locally Nilpotent

Let c ≥ 0, d ≥ 2 be integers and be the variety of groups in which every d-generator subgroup is nilpotent of class at most c. N.D. Gupta asked for what values of c and d is it true that is locally nilpotent? We prove that if c ≤ 2d + 2d−1 − 3 then the variety is locally nilpotent and we reduce the question of Gupta about the periodic groups in to the prime power exponent groups in this variety.

scholarly journals X. An account of some experiments on the combinations of different metals and chlorine, &c

1812 ◽  
Vol 102 ◽  
pp. 169-204 ◽  
Keyword(s):  
Metallic Oxides ◽  
Humphry Davy ◽  
Principal Subject

My brother, Sir Humphry Davy, appears to me to have demonstrated, in his last Bakerian Lecture, the existence of a class of bodies similar to metallic oxides, and consisting of metals in union with chlorine or oxymuriatic acid. These combinations are the principal subject of the following pages. I shall do myself the honour of giving an account of the experiments I have made to ascertain the proportions of their constituent parts, and likewise of describing some that have not yet been noticed.

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