TY - JOUR AU1 - Walker, Reed AU2 - TI - Report on Copper JF - Journal of AOAC INTERNATIONAL DO - 10.1093/jaoac/14.4.450 DA - 1931-11-15 UR - https://www.deepdyve.com/lp/crossref/report-on-copper-wJReLO8J2s SP - 450 EP - 452 VL - 14 IS - 4 DP - DeepDyve ER -