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Environmental





            LCMS-IT-TOF

              Screening Analysis of Golf Course Pesticides

                       (×1,000,000)                            The LCMS-8030 was used to simultaneously analyze 21 of the pesti-
                      17.0                                     cide components subject to evaluation by LC/MS, as specified in the
                      16.0

                                                               Provisional Guidance Indicators for the Prevention of Water Pollution
                      15.0

                                                               from Pesticides Used in Golf Courses, published by Japan's Ministry
                      14.0

                                                               of the Environment on September 29, 2010.
                      13.0

                      12.0                                     Good linearity was obtained for all the components in the range of

                      11.0
                                                               0.5 to 100 µg/L.
                                              292.00>211.10 (+)  Thiamethoxam
                      10.0
                                              223.05>126.05 (+)  Acetamiprid

                                              435.05>182.00 (+)  Harosulfuron-methyl
                      9.0
                                              399.10>261.00 (+)  Ethoxysulfuron

                      8.0                     202.10>124.15 (+)  Simazine   Area (x1,000,000)   Area (x1,000,000)

                                              422.05>261.05 (+)  Cyclosulfamuron

                      7.0                     280.00>220.15 (+)  Metalaxyl   Acetamiprid    Isoxathion
                                              404.10>372.05 (+)  Azoxystrobin   0.5-100 µg/L  4.0
                      6.0                                        3.0
                                              270.05>119.10 (+)  Mepronil   R 2 =0.9998   0.5-100 µg/L
                                              303.05>185.15 (+)  Cumyluron                R 2 =0.9998
                      5.0
                                              308.10>70.05 (+)    Tebuconazole         3.0

                      4.0                     342.00>69.10 (+)    Propiconazole
                                                                 2.0
                                              305.05>169.15 (+)  Diazinon
                      3.0                     333.05>180.15 (+)  Butamifos             2.0
                                              314.00>105.05 (+)  Isoxathion
                      2.0
                                              329.05>125.10 (+)  Pencycuron   1.0
                                              346.05>278.15 (+)  Triflumizole          1.0
                        1.0
                                              376.05>190.20 (+)  Oxaziclomefone
                         0                    331.05>181.15 (+)  Pyributicarb          0.0
                                              254.10>228.05 (−)   Propyzamide   0.0
                         0.0  2.5  5.0  7.5  10.0  12.5  15.0  min  396.10>213.10 (−)   Bensulide   0  50  Conc.
                                                                   0       50      Conc.
                                                                               Calibration Curves for
                                                                          Representative Golf Course Pesticides
                        MRM Chromatogram of Golf Course Pesticides
            LCMS-8030
              Analysis of Carbamate Pesticides Using Prominence UFLC and LCMS-2020
              If multiple components need to be analyzed simultaneously, it may be difficult to achieve full separation using HPLC alone. The high
              selectivity offered by mass spectrometers is especially useful in such cases. The figure below shows an example of results from analyz-
              ing carbamate pesticides. Even at low 500 ppb concentrations, the mass spectrometer provided more than adequate detection sensitiv-
              ity. Furthermore, high throughput can be achieved for processing multiple analytes by combining it with a UFLC system.
                          (x10,000,000)
                                                                                      1: Aldicarb sulfoxide
                           TIC
                      1.00  207.00(60.47)  1                                          2: Aldicarb sulfone
                                                  6                                   3: Oxamyl
                           240.00(8.47)
                                                                                      4: Methomyl
                           237.00(14.56)  3  4   5
                                                                                      5: Methiocarb sulfoxide
                           163.00(16.38)  2
                      0.75  242.00(8.49)            7            15                   6: 3-OH Carbofuran
                           220.00(50.06)                                              7: Methiocarb sulfone
                                                                                      8: Aldicarb
                           239.00(1.20)
                           258.00(67.41)                     10                       9: Bendiocarb
                      0.50  222.00(3.94)                      11                      10: Carbofuran
                                                            9                         11: Carbaryl
                           224.00(9.71)                             18  19
                                                                13                    12: Thiodicarb
                           208.00(6.66)
                                                        8     12             20       13: Ethiofencarb
                           226.00(7.43)                            17
                      0.25  202.00(27.56)                       14 16                 14: XMC
                                                                                      15: Pirimicarb
                           355.00(5.65)
                                                                                      16: Isoprocarb
                           180.00(9.38)
                                                                                      17: Trimethacarb
                           194.00(5.73)
                      0.00                                                            18: Fenobcarb
                           411.00
                                                                                      19: Methiocarb
                            1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50 3.75 4.00 4.25 min  20: Benfuracarb
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