TY - JOUR AU - Sharpless, Katherine AU - Colbert, Jennifer AU - Greenberg, Robert AU - Schantz, Michele AU - Welch, Michael C2 - Fresenius Journal of Analytical Chemistry DA - 2001-06-01 LA - en M1 - 370 PB - Fresenius Journal of Analytical Chemistry PY - 2001 TI - Recent Developments in Food-Matrix Reference Materials at NIST ER -