1. Department of Chemistry, University of North Dakota, 151 Cornell St., Mail Stop 9024, Grand Forks, ND 58202, USA
2. Nueta Hidatsa Sahnish College, 220 8th Ave. E, New Town, ND 58763, USA
3. Agilent Technologies, 2850 Centerville Rd., Wilmington, DE 19808, USA
4. SCIEX, 1201 Radio Rd., Redwood City, CA 94065, USA
5. North Dakota Office of the Attorney General, Crime Laboratory Division, 2641 E Main Ave., Bismarck, ND 58501, USA