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Development of a “Freeze-Pour” Sample Preparation Method for the GC Analysis of Semivolatile Flavouring Chemicals Present in E-cigarette Refill Liquids

is proposed based on a liquid–liquid extraction (LLE) followed by a freeze-out of the matrix components. The developed method was successfully validated in accordance with the validation requirements ...

Development of a sample preparation method for the GC-analysis of e-cigarette refill liquids

to the column. Different sample clean up techniques were tested. Finally the liquid-liquid extraction (LLE) with freeze out using flash cooling technique was optimized. This sample preparation ...

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