A salt-concentration gradient method for the determination of the maximum salt concentration for microbial growth

1966 ◽  
Vol 32 (1) ◽  
pp. 256-260 ◽  
Author(s):  
E. H. Battley ◽  
Elaine J. Bartlett
Keyword(s):  
Salt Concentration ◽  
Gradient Method ◽  
Concentration Gradient ◽  
Microbial Growth

Self-diffusion study of bile salt-monoolein micelles determination of the intermicellar bile salt concentration

1983 ◽  
Vol 80 ◽  
pp. 315-323 ◽  
Author(s):  
Marc Lindheimer ◽  
Jean-Claude Montet ◽  
Roselyne Bontemps ◽  
Jacques Rouviere ◽  
Bernard Brun
Keyword(s):  
Bile Salt ◽  
Salt Concentration ◽  
Diffusion Study ◽  
Bile Salt Concentration ◽  
Self Diffusion

Comparison of several methods for semiquantitative determination of urinary protein.

1977 ◽  
Vol 23 (5) ◽  
pp. 876-879 ◽  
Author(s):  
W L Gyure
Keyword(s):  
Serum Albumin ◽  
Salt Concentration ◽  
Urine Samples ◽  
Urine Protein ◽  
Sulfosalicylic Acid ◽  
Green Method ◽  
Semiquantitative Determination ◽  
Acid Method ◽  
Bromcresol Green

Abstract Two types of urine protein dipsticks and the sulfosalicylic acid method were compared for their accuracy and specificity, with use of urine samples supplemented with various proteins. Dipsticks yield accurate results when the protein under consideration is restricted to albumin; the sulfosalicylic acid method accurately determines many kinds of proteins in addition to albumin. Detergents affect each of the methods, but changes in salt concentration only affect results by dipstick procedures. Dipsticks, which are based on the protein-error principle for indicators, are subject to some of the conditions that apply to the bromcresol green method for serum albumin determination.

scholarly journals Does Non-ionizing Radiant Energy Affect Determination of the Evaporation Rate by the Gradient Method?

1991 ◽  
Vol 96 (1) ◽  
pp. 35-46 ◽  
Author(s):  
Sveinn Kjartansson ◽  
Karen Hammarlund ◽  
Per Åke Öberg ◽  
Gunnar Sedin
Keyword(s):  
Gradient Method ◽  
Evaporation Rate ◽  
Radiant Energy

Quantitative Nephelometric Microdetermination of Alpha-Globulins in Serum and Cerebrospinal Fluid

1956 ◽  
Vol 2 (3) ◽  
pp. 195-213 ◽  
Author(s):  
Abraham Saifer ◽  
Michael C Zymaris
Keyword(s):  
Cerebrospinal Fluid ◽  
Quantitative Determination ◽  
Salt Concentration ◽  
Protein Fraction ◽  
Specific Interaction ◽  
Normal Serum ◽  
Electrophoretic Method ◽  
Serum Fractions ◽  
Standard Serum

Abstract 1. A micronephelometric method is presented for the quantitative determination of total α-globulins in both serum and cerebrospinal fluid. The method is based on the relatively specific interaction of this protein fraction with the cationic detergent, Octab, at pH 6.65 in collidine-NaCl (.08M) buffer. 2. The various Cohn's protein fractions (Method 6) (25) were investigated with the nephelometric procedure. In comparison with normal serum, Fractions IV-6, IV-1, and IV-4, respectively showed the greatest detergent reactivity per milligram of α-globulin. 3. The variations of such factors as the concentrations of reagents, protein/detergent ratio, and salt concentration were reinvestigated. 4. Analysis of 14 normal and 33 pathologic sera gave excellent checks with the total α-globulin values obtained with the Tiselius electrophoretic method. 5. Application of the procedure to the analysis of the α-globulin content of cerebrospinal fluid required the addition of standard serum to 0.5-ml. aliquots of spinal fluid for stoichiometric results.

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