Hexamethylcyclotrisiloxane exporter drugs content determination method is introduced from exoltechcom's blog

Spectrophotometry: It is a qualitative, quantitative and structural analysis method based on the absorption characteristics of material molecules to the wavelength of 200-760nm electromagnetic wave. Simple operation, high accuracy and good reproducibility. Light with a long wavelength (low frequency) has less energy, and light with a short wavelength (high frequency) has more energy. Spectrophotometric measurement is the measurement of radiation absorption degree of material molecules to different wavelengths and specific wavelengths.

Hexamethylcyclotrisiloxane exporter measurement:

Determination of hexamethylcyclotrisiloxane exporter, unless otherwise specified, shall be made in preparation of the same batch of test sample solution solvent as ck, use 1 cm quartz cuvette, within the rules of plus or minus 2 nm absorption peak wavelength absorbance test several points, Or by the instrument in the specified wavelength near the automatic scanning determination, to check whether the absorption peak wavelength position of the test product is correct, unless otherwise stipulated, the absorption peak wavelength should be within the range of the specified wavelength ±2nm, and the maximum absorbance wavelength as the measurement wavelength. General test solution absorption reading, in 0.3 ~ 0.7 error is smaller. The width of the slit band of the instrument should be less than the half width of the absorption band of the test product, otherwise the measured absorption will be low; Slit width selection, should reduce the slit width when the absorbance of the test product is no longer increased, because the absorption pool and solvent itself may have blank absorption, determination of absorbance of the test product should be subtracted from the blank reading, or automatically deducted by the instrument after the calculation of the content. When the pH value of the solution has an effect on the test results, the pH value of the test solution and the control solution can be adjusted to be consistent.

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