Variation of Florisil Activity: Simple Method for Measuring Adsorbent Capacity and Its Use in Standardizing Florisil Columns

1968 ◽  
Vol 51 (1) ◽  
pp. 29-32
Author(s):  
Paul A Mills
Keyword(s):  
Rapid Method ◽  
Lauric Acid ◽  
Sodium Sulfate ◽  
Adsorptive Capacity ◽  
Sulfate Content ◽  
Simple Method ◽  
Simple Proportion ◽  
Hexane Solution ◽  
Adsorbent Capacity

Abstract Sodium sulfate content was found to be the principal cause of variation of adsorbancy between batches of Florisil. A rapid method was developed for determining the adsorptive capacity of Florisil based on the absorption of lauric acid from hexane solution. An excess of lauric acid is used and the amount not adsorbed is measured by alkali titration. Lauric acid adsorbed (mg/g Florisil) is used to calculate, by simple proportion, equivalent quantities of Florisil from batches having different adsorptive capacities.

scholarly journals A Simple Method for Separating Serum Lipoproteins by Electrophoresis on Cellulose Acetate

1970 ◽  
Vol 16 (5) ◽  
pp. 362-365 ◽  
Author(s):  
Margaret J Fletcher ◽  
Maria H Styliou
Keyword(s):  
Lipid Metabolism ◽  
Cellulose Acetate ◽  
Rapid Method ◽  
Serum Lipoproteins ◽  
Simple Method

Abstract A simple, rapid method is described for separating the serum lipoproteins into clear, discrete, and reproducible bands by electrophoresis on cellulose acetate. Sera of patients with primary or secondary hyperlipidemias show patterns reflecting changes in lipid metabolism. The method would be appropriate for use in screening surveys.

Simple Method for Concentration of Cerebrospinal Fluid for Protein Electrophoresis

1965 ◽  
Vol 11 (12) ◽  
pp. 1068-1069 ◽  
Author(s):  
Stanley Burrows
Keyword(s):  
Cerebrospinal Fluid ◽  
Rapid Method ◽  
Protein Electrophoresis ◽  
Protein Solutions ◽  
Simple Method ◽  
Dextran Solution

Abstract A rapid method for concentrating protein solutions is described. It utilizes dialysis against a dextran solution under vacuum.

scholarly journals Simple and Rapid Method for Rat Estrous Cycle Identification Using Crystal Violet- Hormonal Consideration

2020 ◽  
Vol 5 (04) ◽  
pp. 54-59
Author(s):  
Nazia Begum ◽  
Kandavalli Manipriya ◽  
Rahathunnisa Begum ◽  
Veeresh B
Keyword(s):  
Estrous Cycle ◽  
Rapid Method ◽  
Crystal Violet ◽  
Vaginal Smear ◽  
Simple Method ◽  
Ovarian Morphology ◽  
Female Wistar Rats ◽  
Vaginal Cytology ◽  
Histomorphological Changes ◽  
Hormonal Levels

Rat estrous cycle determination or vaginal smear staining is paramount for studies related to endocrinology and reproduction; in the present study; we have reported a simple and rapid method for estrous cycle determination in rats using crystal violet. With this technique, the identification of stages can be done even on the next day. Hormonal variation in blood and histomorphological changes in ovaries at different stages of the estrous cycle were studied in female Wistar rats, which can be used to determine the hormone levels in works related to hormonal drugs, further ovarian morphology can be used to study changes in ovaries during the estrous cycle. This study aims to report a rapid and simple method for vaginal cytology using crystal violet and to report normal hormonal levels and histomorphology of ovaries in various phases of the estrous cycle.

A Simple and Rapid Method for Reducing Radiocesium Concentrations in Wild Mushrooms (Cantharellus and Boletus) in the Course of Cooking

2016 ◽  
Vol 79 (11) ◽  
pp. 1995-1999 ◽  
Author(s):  
GEORG STEINHAUSER ◽  
VERONIKA STEINHAUSER
Keyword(s):  
Rapid Method ◽  
Radioactive Cesium ◽  
Activity Levels ◽  
Nuclear Accidents ◽  
Wild Mushrooms ◽  
Simple Method ◽  
Lower Affinity ◽  
Boletus Edulis ◽  
High Fraction ◽  
High Concentrations

ABSTRACT Many species of mushrooms are known accumulators of radioactive cesium (137Cs and 134Cs). Even years and decades after major nuclear accidents, especially those at Chernobyl and Fukushima, mushrooms exhibit high concentrations of these radionuclides. We investigated a simple method for reducing the activity of radiocesium in wild mushrooms (chanterelles, Cantharellus cibarius; and boleti, Boletus edulis) during cooking. The juice generated while cooking mushrooms contains a relatively high fraction of the total cesium. The amount of juice can be increased by washing the mushrooms with water prior to cooking. By removing the juice, up to 29% of the radiocesium can be easily removed from chanterelles. Because boleti have a lower affinity for cesium, activity levels were lower in boleti than in chanterelles. The fraction of radiocesium in the juice was lower in boleti than in chanterelles.

A rapid method for the assessment of the macromycota. The fungal community of an evergreen cloud forest as an example

1998 ◽  
Vol 76 (4) ◽  
pp. 596-601
Author(s):  
R Guevara ◽  
R Dirzo
Keyword(s):  
Rapid Method ◽  
Fungal Community ◽  
Fungal Diversity ◽  
Cloud Forest ◽  
Simple Method

The macromycota of an evergreen cloud forest was described using a simple method, intended to minimize taxonomic work but still provide an accurate account of diversity. The method showed that the fungal community in the area is spatially structured and that area sampled limited the recording of fungal richness in this study. Parameters derived from the Clench equation suggest that an area of 1 ha will maximize the proportion of recorded taxa and minimize sampling effort.Key words: fungal diversity, macrofungal communities, tropical mycoecology, El Triunfo.

scholarly journals 3D printed fittings and fluidic modules for customizable droplet generators

RSC Advances ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 2822-2828 ◽  
Author(s):  
Sindhu Vijayan ◽  
Michinao Hashimoto
Keyword(s):  
Rapid Method ◽  
Simple Method ◽  
3D Printed ◽  
Droplet Generators

We developed a rapid method to prototype axisymmetric droplet generators using 3D printed fittings and commercially available components. This simple method allowed generating simple and complex emulsions of varying sizes and configurations.

A Simple Method for the Detection of Benzo[a]pyrene in Smoked Foods

1964 ◽  
Vol 47 (5) ◽  
pp. 894-897
Author(s):  
C Genest ◽  
D M Smith
Keyword(s):  
Thin Layer ◽  
Dimethyl Sulfoxide ◽  
Ultraviolet Light ◽  
Rapid Method ◽  
Small Volume ◽  
Simple Method ◽  
Thin Layer Chromatographic Plate ◽  
Chromatographic Plate ◽  
Benzene Extract

Abstract Benzo[a]pyrene can be used as an index of carcinogens in smoke. A simple and rapid method has been developed for determining this substance. The dried food was extracted with ra-hexane, the hexane was then extracted with dimethyl sulfoxide, and the polynuclear hydrocarbon was displaced from this solvent into benzene by water. The benzene extract was reduced to a small volume and an aliquot was spotted on a thin-layer chromatographic plate beside spots of a standard benzo[a]pyrene solution. The plate was chroma tographed with 2,2,4-trimethyl pentane:benzene (97:3). When observed under ultraviolet light at 3660 Å, 0.002 μg of pure benzo[a]pyrene could be found and the addition of 0.01—0.05 ppm to unsmoked foods could be detected. No smoked food examined contained this level of benzo-[a]pyrene.

A Rapid Method to Aromatic Aminoalkyl Esters via the Catalyst-Free Difunctionalization of C–N Bonds

Synthesis ◽  
2018 ◽  
Vol 50 (13) ◽  
pp. 2587-2594 ◽  
Author(s):  
Qiming Zhu ◽  
Peng Yang ◽  
Mingwei Chen ◽  
Jinyu Hu ◽  
Luyi Yang
Keyword(s):  
Nitrogen Source ◽  
Rapid Method ◽  
Multicomponent Reaction ◽  
Alkyl Group ◽  
Potential Drug ◽  
Tertiary Amines ◽  
Simple Method ◽  
Catalyst Free ◽  
Free Process ◽  
Efficient Access

A novel multicomponent reaction involving a direct C–N esterification/arylation has been developed. This catalyst-free process was conducted with cyclic tertiary amines via a facile C–N cleavage to provide the alkyl group and nitrogen source. The operationally simple method to rapidly combine cyclic tertiary amines, haloazaarenes and carboxylic acids (or anhydrides) affords an efficient access to aromatic aminoalkyl esters, potential drug-like products, in good to excellent yields.

Rapid Method for Determining Ultrafiltrable Calcium in Serum

1972 ◽  
Vol 18 (12) ◽  
pp. 1488-1492 ◽  
Author(s):  
Bent Halver
Keyword(s):  
Rapid Method ◽  
Original Method ◽  
Simple Method ◽  
Ph Influence ◽  
Blood Specimens

Abstract A modification of a simple method for determining ultrafiltrable calcium in serum is presented. Because variations of pH influence the values for ultrafiltrable calcium, a correction for changes of pH is suggested in order to avoid anaerobic handling of the blood specimens. By this procedure the original method is made simpler, more rapid, and more accurate.

scholarly journals Simple method for calculating time dependence of individual radionuclide activities in decay series

2007 ◽  
Vol 5 (3) ◽  
pp. 868-879
Author(s):  
Jiří Landa ◽  
Štefan Palágyi
Keyword(s):  
Time Dependence ◽  
Rapid Method ◽  
Matrix Method ◽  
New Method ◽  
Nuclear Chemistry ◽  
Vector Form ◽  
Simple Method ◽  
Mathematical Procedure ◽  
Decay Series ◽  
The Matrix

AbstractA rapid method for calculating the time dependence of activities of individual radionuclides in genetically coupled decay series has been proposed. The method is based on the mathematical procedure, in which the matrix method is used for calculating a set of decay equations given in the vector form. The developed method is computerized and uses the modern Scilab software. This simple method eliminates certain drawbacks of older methods used previously for this purpose and is applicable to even solve calculations which are not easily treatable with the older methods. Some practical examples of such calculations are presented. Moreover, the new method is universal and it also enables a more general approach to the problem of the calculation of decay series in nuclear chemistry.

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