P872: Method writing for an interlaboratory study

Author: Teresa J. Bixby, Lewis University, USA

Co-Author:

Date: 8/6/14

Time: 4:00 PM4:20 PM

Room: MAN 107

Related Symposium: S60

Two sections of Analytical Chemistry allow for a unique experience in method writing and interlaboratory comparison. Each section is asked to develop an analytical method to quantify the mass percent of a dye in a salt and sand mixture. After execution of their own method, the sections swap methods. Analysis includes a comparison of the accuracy, the intra-assay precision, and intermediate precision of the methods. Discussion of insights and improvements to each method help students reflect on the process of method writing.