- 行业: Printing & publishing
- Number of terms: 178089
- Number of blossaries: 0
- Company Profile:
McGraw Hill Financial, Inc. is an American publicly traded corporation headquartered in Rockefeller Center in New York City. Its primary areas of business are financial, publishing, and business services.
A form of gas chromatography in which the moving phase is a gas and the stationary phase is a surface-active sorbent (charcoal, silica gel, or activated alumina). Abbreviated GSC.
Industry:Chemistry
An absorbent-packed tube used to capture the carbon dioxide formed during the microdetermination of carbon-hydrogen by the Pragl combustion procedure.
Industry:Chemistry
An error introduced in an analytical determination of a saline liquid such as sea water; caused by the effect of the neutral ions in the solution on the color of the pH indicator, and hence upon the apparent pH.
Industry:Chemistry
A type of column chromatography which separates molecules on the basis of size; higher-molecular-weight substances pass through the column first. Also known as molecular exclusion chromatography; molecular sieve chromatography.
Industry:Chemistry
Carbon deposited by evaporation onto a specimen to protect and prepare it for electron microscopy.
Industry:Chemistry
Milligrams of potassium hydroxide required to saponify the fat, oil, or wax in a 1-gram sample of a given material, using a specific American Society for Testing and Materials test method.
Industry:Chemistry
Analysis by chromatography in which the stationary phase consists of beads of porous polymeric material such as a crosslinked dextran carbohydrate derivative sold under the trade name Sephadex; the moving phase is a liquid.
Industry:Chemistry
A device used in the quantitative analysis of the carbon and hydrogen content of organic compounds.
Industry:Chemistry
A nonchelating dye used to improve the colorimetric end point of a complexometric titration; a dye addition forms a complementary pair of colors with the metalized and unmetalized forms of the end-point indicator.
Industry:Chemistry
A measure of the amount of protective colloid which must be added to a standard red gold sol mixed with sodium chloride solution to prevent the solution from causing the sol to coagulate, as manifested by a change in color from red to blue.
Industry:Chemistry
