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.
Chen
Yong
Y
Department of Chemistry, University of Waterloo, Waterloo, ON, N2L 3G1, Canada.
O'Reilly
John
J
Wang
Yanxiang
Y
Pawliszyn
Janusz
J