0188-8897 0188-8897 S0188-88972015000200303 Mexico Mexico 00 08 2015 00 08 2015 25 2 303 306

Association of Official Analytical Chemists 1995 16th 2010 24 4 4 805-12 2002 33 4 4 458-65 1997 157 3-4 3-4 251-62 2011 107 834-44 2009 291 115-23 2009 84 91-111 1983 49 1 1 265-77 1987 18 293-320 2006 147 195-203 1996 147 249-59 2010 537