0188-8897 0188-8897 S0188-88972015000200275 Mexico 00 08 2015 00 08 2015 25 2 275 283

1997 28 841-5 2014 42 3 3 644-8 AOAC (Association of Official Analytical Chemists) 1997 16th 2009 153 1 1 30-8 1981 59 8 8 1479-87 2005 34 2 2 357-64 1986 57 299-309 1983 33 365-71 1993 106 2 2 367-71 2001 1973 19 1 1 1-6 1986 85 2 2 243-7 1995 131 145-52 1998 43 77-92 1975 104 2 2 342-8 1985 81 275-9 1983 IX 477 1979 18 3 3 263-8 1979 16 3 3 233-42 1979 18 3 3 241-52 2011 31 5 5 379-98 2000 57 4 4 839-57 1994 94-7 1995 137 1 1 313-23 1997 54 2 2 396-404 1995 130 1 1 25-34 2007 38 7 7 773-5 1994 38 2 2 217-29 2012 177 2 2 278-92 1979 199 3 3 431-54 1998 42 4 4 243-53 2001 197 229-81 1995 11 111-7 1994 25 3 3 329-39 2003 136 4 4 657-65 1996 103 2 2 167-75 1989 80 337-41 1996 9 3 3 161-7 2000 286 5 5 534-7 1979 16 4 4 351-9 1974 620