 
          HCH alpha
        
        
          79
        
        
          109
        
        
          87
        
        
          113
        
        
          121
        
        
          88
        
        
          84
        
        
          135
        
        
          108
        
        
          HCH beta
        
        
          85
        
        
          111
        
        
          90
        
        
          109
        
        
          110
        
        
          85
        
        
          87
        
        
          138
        
        
          109
        
        
          HCH gamma_Lindane
        
        
          87
        
        
          110
        
        
          89
        
        
          115
        
        
          123
        
        
          88
        
        
          81
        
        
          132
        
        
          106
        
        
          Hexaconazole*
        
        
          95
        
        
          97
        
        
          84
        
        
          95
        
        
          103
        
        
          75
        
        
          90
        
        
          111
        
        
          88
        
        
          Imazalil*
        
        
          72
        
        
          97
        
        
          84
        
        
          87
        
        
          102
        
        
          67
        
        
          69
        
        
          96
        
        
          78
        
        
          Iprodione
        
        
          109
        
        
          111
        
        
          86
        
        
          120
        
        
          124
        
        
          94
        
        
          109
        
        
          102
        
        
          84
        
        
          Isofenphos-methyl
        
        
          85
        
        
          111
        
        
          92
        
        
          99
        
        
          112
        
        
          89
        
        
          94
        
        
          128
        
        
          103
        
        
          Kresoxim-methyl
        
        
          86
        
        
          111
        
        
          96
        
        
          114
        
        
          119
        
        
          85
        
        
          86
        
        
          120
        
        
          101
        
        
          Linuron*
        
        
          126
        
        
          118
        
        
          95
        
        
          95
        
        
          100
        
        
          63
        
        
          126
        
        
          133
        
        
          98
        
        
          Malathion
        
        
          108
        
        
          106
        
        
          90
        
        
          83
        
        
          122
        
        
          101
        
        
          150
        
        
          121
        
        
          88
        
        
          Mepanipyrim
        
        
          82
        
        
          111
        
        
          96
        
        
          123
        
        
          138
        
        
          72
        
        
          93
        
        
          121
        
        
          95
        
        
          Metalaxyl*
        
        
          84
        
        
          111
        
        
          91
        
        
          97
        
        
          115
        
        
          90
        
        
          75
        
        
          115
        
        
          95
        
        
          Methacrifos
        
        
          89
        
        
          108
        
        
          78
        
        
          82
        
        
          109
        
        
          96
        
        
          66
        
        
          130
        
        
          103
        
        
          Methamidophos
        
        
          56
        
        
          60
        
        
          63
        
        
          59
        
        
          61
        
        
          50
        
        
          97
        
        
          73
        
        
          51
        
        
          Methidathion
        
        
          110
        
        
          106
        
        
          84
        
        
          99
        
        
          118
        
        
          94
        
        
          106
        
        
          125
        
        
          98
        
        
          Methiocarb**
        
        
          85
        
        
          98
        
        
          81
        
        
          <LOD
        
        
          <LOD
        
        
          75
        
        
          <LOD
        
        
          <LOQ
        
        
          78
        
        
          Metribuzin*
        
        
          87
        
        
          111
        
        
          98
        
        
          89
        
        
          117
        
        
          84
        
        
          94
        
        
          129
        
        
          99
        
        
          Monocrotophos*
        
        
          90
        
        
          92
        
        
          74
        
        
          110
        
        
          99
        
        
          60
        
        
          107
        
        
          87
        
        
          63
        
        
          Myclobutanil
        
        
          91
        
        
          115
        
        
          96
        
        
          104
        
        
          109
        
        
          83
        
        
          77
        
        
          116
        
        
          94
        
        
          Ortho-phenylphenol
        
        
          95
        
        
          102
        
        
          74
        
        
          63
        
        
          75
        
        
          78
        
        
          61
        
        
          120
        
        
          99
        
        
          Oxadiazon
        
        
          84
        
        
          115
        
        
          95
        
        
          111
        
        
          117
        
        
          81
        
        
          69
        
        
          117
        
        
          100
        
        
          Oxadixyl
        
        
          89
        
        
          108
        
        
          87
        
        
          116
        
        
          118
        
        
          84
        
        
          76
        
        
          108
        
        
          93
        
        
          Paclobutrazol
        
        
          81
        
        
          106
        
        
          91
        
        
          95
        
        
          109
        
        
          85
        
        
          90
        
        
          111
        
        
          91
        
        
          Paraoxon-methyl*
        
        
          102
        
        
          108
        
        
          109
        
        
          137
        
        
          146
        
        
          111
        
        
          132
        
        
          117
        
        
          73
        
        
          Parathion (ethyl)*
        
        
          69
        
        
          98
        
        
          101
        
        
          54
        
        
          95
        
        
          95
        
        
          120
        
        
          132
        
        
          100
        
        
          Parathion-methyl
        
        
          83
        
        
          107
        
        
          98
        
        
          108
        
        
          129
        
        
          95
        
        
          101
        
        
          138
        
        
          105
        
        
          Pendimethalin
        
        
          45
        
        
          81
        
        
          118
        
        
          51
        
        
          73
        
        
          85
        
        
          117
        
        
          132
        
        
          96
        
        
          Permethrin
        
        
          109
        
        
          107
        
        
          83
        
        
          109
        
        
          115
        
        
          81
        
        
          91
        
        
          112
        
        
          94
        
        
          Phenthoate*
        
        
          83
        
        
          111
        
        
          105
        
        
          124
        
        
          124
        
        
          95
        
        
          99
        
        
          125
        
        
          97
        
        
          Phosalone
        
        
          115
        
        
          106
        
        
          82
        
        
          97
        
        
          87
        
        
          83
        
        
          103
        
        
          108
        
        
          86
        
        
          Phosmet
        
        
          114
        
        
          87
        
        
          71
        
        
          104
        
        
          115
        
        
          88
        
        
          107
        
        
          85
        
        
          63
        
        
          Phosphamidon
        
        
          109
        
        
          112
        
        
          95
        
        
          115
        
        
          131
        
        
          98
        
        
          53
        
        
          64
        
        
          120
        
        
          Pirimicarb
        
        
          85
        
        
          110
        
        
          87
        
        
          90
        
        
          113
        
        
          90
        
        
          77
        
        
          118
        
        
          94
        
        
          Pirimicarb-p-desmetyl*
        
        
          79
        
        
          99
        
        
          81
        
        
          85
        
        
          106
        
        
          82
        
        
          82
        
        
          122
        
        
          89
        
        
          Pirimiphos methyl
        
        
          90
        
        
          109
        
        
          93
        
        
          116
        
        
          113
        
        
          93
        
        
          71
        
        
          111
        
        
          92
        
        
          Prochloraz*
        
        
          117
        
        
          94
        
        
          72
        
        
          112
        
        
          124
        
        
          87
        
        
          76
        
        
          86
        
        
          71
        
        
          Procymidone
        
        
          85
        
        
          107
        
        
          87
        
        
          84
        
        
          115
        
        
          86
        
        
          82
        
        
          119
        
        
          98
        
        
          Profenofos
        
        
          112
        
        
          107
        
        
          89
        
        
          112
        
        
          108
        
        
          90
        
        
          119
        
        
          89
        
        
          77
        
        
          Propargite
        
        
          104
        
        
          104
        
        
          90
        
        
          <LOD
        
        
          <LOD
        
        
          58
        
        
          62
        
        
          89
        
        
          88
        
        
          Propiconazole
        
        
          89
        
        
          95
        
        
          74
        
        
          102
        
        
          110
        
        
          77
        
        
          79
        
        
          107
        
        
          90
        
        
          Propyzamide
        
        
          84
        
        
          110
        
        
          89
        
        
          100
        
        
          116
        
        
          88
        
        
          90
        
        
          133
        
        
          103
        
        
          Prothiofos
        
        
          73
        
        
          96
        
        
          92
        
        
          95
        
        
          99
        
        
          82
        
        
          89
        
        
          104
        
        
          81
        
        
          Pyraclostrobin
        
        
          100
        
        
          116
        
        
          90
        
        
          128
        
        
          139
        
        
          97
        
        
          101
        
        
          123
        
        
          92
        
        
          Pyridaben
        
        
          111
        
        
          110
        
        
          86
        
        
          108
        
        
          114
        
        
          81
        
        
          92
        
        
          108
        
        
          87
        
        
          Pyrimethanil
        
        
          78
        
        
          103
        
        
          84
        
        
          84
        
        
          103
        
        
          84
        
        
          70
        
        
          118
        
        
          95
        
        
          17
        
        
          
            Table 4 continued
          
        
        
          * spiking levels are 50, 100 & 500 ng/g    ** spiking levels are 100, 200 & 1000 ng/g    <LOD/LOQ – spiking value below LOD/LOQ value
        
        
          
            Compound
          
        
        
          
            Strawberry
          
        
        
          
            Wheat Flour
          
        
        
          
            Leek
          
        
        
          
            Level 1
          
        
        
          
            Level 2
          
        
        
          
            Level 3
          
        
        
          
            Level 1
          
        
        
          
            Level 2
          
        
        
          
            Level 3
          
        
        
          
            Level 1
          
        
        
          
            Level 2
          
        
        
          
            Level 3