After the sample is ashed in a muffle furnace, the resulting ash is melted with lithium tetraborate at high temperature. The melted sample is dissolved with tartaric acid-hydrochloric acid, diluted with water to a constant volume, and the sample solution is introduced into an inductively coupled plasma emission spectrometer for measurement. , by comparing the emission intensity of the sample solution and the standard solution at a specific wavelength, the concentration of the measured element in the sample solution is obtained.
T/CPCIF 0096-2021 history
2021T/CPCIF 0096-2021 Determination of silicon in polyethylene and polypropylene— Inductively coupled plasma emission spectrometry