0188-4999 0188-4999 S0188-49992006000200083 Mexico Mexico México 00 06 2006 00 06 2006 22 2 83 93

AOAC 1984 14 2004 12 365-71 CONACyT CWMI (Cornell Waste Management Institute 1976 1974 37 2054-62 2000 8 274-92 1991 294 249-59 1977 197-225 1993 2005 21 37-50 1997 26 534-50 1988 1988 25 209-18 Norma Oficial Mexicana 2003 2001 A36 415-36 1976 1992 10-70-72 TMECC 2001 1995 13 509-18 Woods End Research Laboratory 1999