| Abstract Title: | The use of vacuum assisted headspace solid phase microextraction for analysis of volatiles in Food. |
| Presenter Name: | Dr Kathy Ridgway |
| Company/Organisation: | Element Laboratory Solutions |
| Country: | United Kingdom |
Abstract Information :
Headspace solid phase microextraction (HS-SPME) is a well-established techniques for the volatile profiling of food. However, for some compounds there is a need for long extraction times, or elevated temperatures to obtain sufficient response. However, the use of elevated temperatures can lead to the formation or breakdown of compounds in some food matrices and therefore reducing extraction temperatures offers significant advantages. The application of a vacuum prior to extraction has been shown to reduce the time and temperature required to obtain accurate volatile profiles in a number of food and drink commodities [1- 3] In this contribution, the use of vacuum assisted headspace SPME will be described, both in theoretical terms [4,5] and with a number of application examples. A comparison will be made between results obtained using atmospheric pressure headspace solid phase microextraction (AP-HS-SPME) and vacuum assisted headspace solid phase microextraction (VaC-HS-SPME) for a number of matrices and a simple test mix. The full automation of the procedure will also be presented. References: [1] M, Vakinti et al; J Chrom A. Volume 1602 (2019) 142-149. [2] S.Mascrez et al; Anal Chim Acta Volume 1103 (2020) 106-114. [3] N.Delbecque et al; Anal Chim Acta volume 1192 (2022) 339365. [4] E.Psillakis ; Anal and Bioanal Chemistry (2020) 412:-5989-5997. [5] E Psillakis, Anal Chim Acta 986 (2017) 12-24.
