- 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 type of electron diffraction analysis in which the electron beam is transmitted through a thin film or powder whose smallest dimension is no greater than a few tenths of a micrometer.
Industry:Chemistry
A technique of bonded-phase chromatography in which the stationary phase is polar and the mobile phase is nonpolar.
Industry:Chemistry
A material of known composition that is analyzed along with test samples in order to evaluate the accuracy of an analytical procedure. Also known as check sample.
Industry:Chemistry
During absorption spectroscopy, the amount of radiant energy transmitted by the solution under analysis.
Industry:Chemistry
A method of detecting trace inpurities in a gas, in which the absorption of a sample of the gas at various light frequencies is measured by directing a periodically interrupted laser beam through the sample in a spectrophone and measuring the sound generated by the optoacoustic effect at the frequency of interruption of the beam.
Industry:Chemistry
The number of milligrams of copper obtained by the reduction of Benedict’s or Fehling’s solution by 1 gram of carbohydrate.
Industry:Chemistry
A scattered-light procedure for the determination of the weight concentration of particles in cloudy, dull, or muddy solutions; uses a device that measures the loss in intensity of a light beam as it passes through the solution. Also known as turbidimetry.
Industry:Chemistry
Quantitative determination of elements, functional groups, or molecules in organic materials.
Industry:Chemistry
A technique in which the amount of a substance is determined quantitatively by measuring the total amount of electricity required to deplete a solution of the substance.
Industry:Chemistry
Titration in which the end point is indicated by the developing turbidity of the titrated solution.
Industry:Chemistry
