органика 171

171.In all physicochemical methods of analysis, two main methodological techniques are used:

• parallel and direct methods

• direct and indirect methods

• digital and analog methods

• electrochemical and chromatographic methods

172.Basic physical and chemical methods of analysis:

• spectral, electrochemical, halogen

• spectral, discrete, halogen

• spectral, electrochemical, chromatographic

• electrochemical, optical, discrete

173. Expand the essence of the direct analysis method.

• This method uses the dependence of the analytical signal on the nature of the analyte and its concentration

• The method assumes strict adherence to the ratio in the range of analyzed concentrations

• The method is based on measuring the wavelength, intensity and other characteristics of light emitted by atoms to the ions of a substance in a gaseous state

• Methodis used to determine the total influence of factors on the generalizing indicator

174. Expand the essence of the graduated plot method.

• This method uses the dependence of the analytical signal on the nature of the analyte and its concentration

• Methodis used to determine the total influence of factors on the generalizing indicator

• The method assumes strict adherence to the ratio in the range of analyzed concentrations.

175.Unit for vibration frequency:

• Hertz

• Ohm

• Vold

• Ampere

176. Expand the essence of emission spectral analysis.

• The method assumes strict adherence to the ratio in the range of analyzed concentrations

• The method is based on measuring the wavelength, intensity and other characteristics of light emitted by atoms to the ions of a substance in a gaseous state

• This method uses the dependence of the analytical signal on the nature of the analyte and its concentration.

• B the analysis method is based on the relationship between the line intensity of each element and the concentration of this element

• Methodis used to determine the total influence of factors on the generalizing indicator

177.The intensity of the spectral line for a thermally equilibrium plasma, the distribution of atoms by degrees of excitation is determined by the law ...

• Boltzmann

• Oma

• Plank

• Joule

• Pendant

178.The essence of the photographic method of quantitative analysis

• This method allows you to get a full range of complex material in one go. As a result, a record is obtained where the intensities of all lines of the spectrum are indicated on the ordinate axis

• This method uses the dependence of the analytical signal on the nature of the analyte and its concentration.

• The method assumes strict adherence to the ratio in the range of analyzed concentrations

• Methodis used to determine the total influence of factors on the generalizing indicator

• The method is based on measuring the wavelength, intensity and other characteristics of light emitted by atoms to the ions of a substance in a gaseous state

   

179. The essence of the quantitative analysis method

• This analysis is based on the relationship between the line intensity of each element and the concentration of this element

• The method assumes strict adherence to the ratio in the range of analyzed concentrations

• Methodis used to determine the total influence of factors on the generalizing indicator.

• This method allows you to get a full range of complex material in one go. As a result, a record is obtained where the intensities of all lines of the spectrum are indicated on the ordinate axis

• This method uses the dependence of the analytical signal on the nature of the analyte and its concentration

180. The intensity of the bands in the absorption spectrum is characterized by ...

• absorption integral

• integral of perturbation

• integral of the parallel

• integral of quantization

• reversed integral