Chlorine ion detection method based on chlorosilane derivatization

The invention discloses a chlorine ion detection method based on chlorosilane derivatization. The method comprises the steps that inorganic acid is added into a sample for acidification, a silanization reagent with a boiling point range of 100-300 DEG C is added, a reaction is performed under the te...

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Bibliographic Details
Main Authors DU JINGRU, ZHANG HUARONG, JIANG KEZHI
Format Patent
LanguageChinese
English
Published 21.02.2020
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:The invention discloses a chlorine ion detection method based on chlorosilane derivatization. The method comprises the steps that inorganic acid is added into a sample for acidification, a silanization reagent with a boiling point range of 100-300 DEG C is added, a reaction is performed under the temperature of 25-60 DEG C for 5-60 min, the pH value of an alkaline solution is regulated to 1.0-10.0, an organic solvent insoluble in water is adopted for extraction, and a silanization product solution is obtained; and the obtained silanization product solution is subjected to gas chromatography orgas chromatography-mass spectrometry analytical detection, and an external standard method is adopted to quantitatively analyze fluorine ions in the aqueous solution. According to the detection method, chlorosilane with a high boiling point is adopted, the boiling point of a fluorine ion silanization product is increased, the sensitivity, selectivity and accuracy of the detection method are improved, experimental operati
Bibliography:Application Number: CN201911071391