Table S3: Method performance of UHPLC-MS/MS and GC-MS/MS analyses. Pollen Nectarb Recovery (%) b LC spike: 1 ng/g LC spike: 10 ng/g GC spike: 100 ng/g GC spike: 1 µg/g Linearity of x Pesticide calibration response (r2) MDL (ng/g) MQL (ng/g) (%) Mean RSD Mean RSD 6 acetamiprid 0.9877 17 0 - 0.08 - 0.42 0.28 - 1.4 114 17 110 19 - 4 8 - 2 7 - 0.9951 1 43 - 215 143 - 717 104 10 91 20 -cypermethrin 2 3 boscalid 0.9965 17 - 0.82 - 4.1 2.1 - 10 102 7 109 14 - - carbendazim 0.9817 -18 - 2.4 - 12 12 - 59 93 13 78 9 carboxin 0.9875 -6 0 0.10 - 0.50 0.33 - 1.7 124 1 122 18 - - 6 - - chlorothalonil 0.9958 62a 152 - 760 461 - 2304 116 98 - - chlorpyrifos 0.9985 55 a 38 - 188 100 - 500 104 10 111 12 9 3 chlothianidin 0.9980 -13 0.22 - 1.1 0.76 - 3.8 119 16 120 - - epoxiconazole 0.9959 -11 2.2 - 11 9.1 - 46 140 11 99 15
Table S3: Method performance of UHPLC-MS/MS and GC-MS/MS analyses. Pesticide Linearity of calibration response (r2) (%) Nectarb Recovery (%) MDL (ng/g) MQL (ng/g) LC spike: 1 ng/g GC spike: 100 ng/g LC spike: 10 ng/g GC spike: 1 µg/g Mean RSD Mean RSD acetamiprid 0.9877 17 - - 0.08 - 0.42 0.28 - 1.4 114 17 110 19 -cypermethrin 0.9951 1 - - 43 - 215 143 - 717 104 10 91 20 boscalid 0.9965 17 - - 0.82 - 4.1 2.1 - 10 102 7 109 14 carbendazim 0.9817 -18 - - 2.4 - 12 12 - 59 93 13 78 9 carboxin 0.9875 -6 - - 0.10 - 0.50 0.33 - 1.7 124 1 122 18 chlorothalonil 0.9958 62a - - 152 - 760 461 - 2304 116 7 98 3 chlorpyrifos 0.9985 55 a - - 38 - 188 100 - 500 104 10 111 12 chlothianidin 0.9980 -13 - - 0.22 - 1.1 0.76 - 3.8 119 16 120 6 epoxiconazole 0.9959 -11 2.2 - 11 9.1 - 46 140 11 99 15 6 8 9 2 4 b Pollen 0 3 0 x 2
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