Standards in the extraction phase, a new approach to calibration of microextraction processes.
A standard, preloaded onto the extraction phase prior to the extraction step, partially desorbs to the sample matrix during sampling. The amount lost can be used as a means of calibration.
Department of Chemistry, University of Waterloo, Waterloo, ON, N2L 3G1, Canada.
Yong
Y
Chen
John
J
O'Reilly
Yanxiang
Y
Wang
Janusz
J
Pawliszyn