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Figure S4Cumulated volatilization fluxesof S-Metolachlor and Benoxacor for the wind-tunnel and field experiments
Compound
CAS number
Ion 1
Ion 2
Retention time (min)
Benoxacor
98730-04-2
120
259
15.0
Metolachlor
51218-45-2
162
238
15.5
Table S3Calibration points for air, soil, and plant residue samples
Split method
TDS3
30 to 325 °C (hold 8 min) at 60 °C/min in the TDS splitless mode
Same conditions with transfer step (transfer into the GC system) operated with split to analyze highly concentrated samples
D1S1
116.260
210
116.281
210
136.51
170
116.406
116.417
136.63
D1S2
116.417
210
116.427
210
136.63
144
116.552
116.563
136.73
D1S3
116.563
200
116.573
200
-
116.698
116.708
-
N1S4
Table S4Recovery results for soil and crop residue samples
Soil
Crop residues
From Aslam et al. (2014)
This study
From Aslam et al. (2014)
rdt (%)
CV (%)
n
Rdt (%)
Air sample analysis
Example n°1
0.1-0.2-0.5-1-5-25 ng
Example n°1
0.2-0.5-1-5-25-100 ng
Example n°1
1-5-25-100-200-500 ng
Example n°1
10-25-50-100-200 ng
Soil sample analysis
Transfer line
325 °C
Cooled injection system
-50 °C to 325 °C (hold 23min) at 12 °C/s (straight glass liner) in the solvent vent mode
Helium flow rate
200mL/min
Supplemental information
Observed volatilization fluxes of S-metolachlor and Benoxacor applied on soil with and without crop residues
Bedos C.1*, Alletto L.2,Durand B.1, Fanucci O.1,Brut A.3,Bourdat-DeschampsM.1,Giuliano S.2, Loubet B.1, Ceschia E.3,Benoit P.1
D2S7
117.604
210
117.604
210
137.57
236
117.740
117.740
137.73
N2S8
117.760
735
117.760
735
137.73
777
118.260
118.260
138.27
D3S9
118.281
210
118.281
210
138.27
207
118.417
118.417
Rdt (%)
rdt (%)
CV (%)
n
Smeto
104
4
5
105
100
76
30
3
OA
57
3
5
30
38
35
8
3
ESA
75
4
5
67
70
42
10
3
Figure S1Picture of the three wind tunnels placed in the field. The arrow with thick dashed line represents the airflowdirectioninside the tunnel(left). Map of the field for the fieldscaleexperiment. The red point indicates the location of the different masts
Number of pages:4
Number of Tables:4
Number of Figures:4
-Air sampling
Table S1Air sampling
Sample number
T-MM1
Duration(min)
T-MM3
Duration(min)
Plot
Duration(min)
Figure S2Latent heat of evaporationtogether with soil surface temperature for the wind-tunnel experiment
Figure S3Ratioof theconcentrations in S-metolachlor andbenoxacorin the airfor each sampling periods (left) and in the applied solution, measured application dose with filters, air concentrations averaged over all sampling periods and cumulated fluxes (right)
138.42
D3S10
118.438
210
118.438
210
138.43
198
118.573
118.573
138.56
D3S11
118.594
210
118.594
210
138.56
208
118.729
118.729
138.71
Table S2Chemical analysis
Splitless method
0.01-0.035-0.07-0.15-0.25-0.375-1 µg/ml
-Recovery tests for soil and crop residue extraction
Soil and crop residues samples were spiked before extraction with a mixture of s-metholachlor, OA and ESA. The concentrations of each compound were 100 µg/kg and 150 µg/kg for soil and crop residue, respectively, corresponding to a final concentration in the extract before analysis of 0.3 µg/mL and 0.1 µg/mL, respectively.
116.7Fra Baidu bibliotek9
795
116.719
795
136.73
777
117.271
117.271
137.27
D2S5
117.292
210
117.292
210
137.27
207
117.427
117.427
137.42
D2S6
117.448
210
117.448
210
137.42
205
117.583
117.583
137.56
Compound
CAS number
Ion 1
Ion 2
Retention time (min)
Benoxacor
98730-04-2
120
259
15.0
Metolachlor
51218-45-2
162
238
15.5
Table S3Calibration points for air, soil, and plant residue samples
Split method
TDS3
30 to 325 °C (hold 8 min) at 60 °C/min in the TDS splitless mode
Same conditions with transfer step (transfer into the GC system) operated with split to analyze highly concentrated samples
D1S1
116.260
210
116.281
210
136.51
170
116.406
116.417
136.63
D1S2
116.417
210
116.427
210
136.63
144
116.552
116.563
136.73
D1S3
116.563
200
116.573
200
-
116.698
116.708
-
N1S4
Table S4Recovery results for soil and crop residue samples
Soil
Crop residues
From Aslam et al. (2014)
This study
From Aslam et al. (2014)
rdt (%)
CV (%)
n
Rdt (%)
Air sample analysis
Example n°1
0.1-0.2-0.5-1-5-25 ng
Example n°1
0.2-0.5-1-5-25-100 ng
Example n°1
1-5-25-100-200-500 ng
Example n°1
10-25-50-100-200 ng
Soil sample analysis
Transfer line
325 °C
Cooled injection system
-50 °C to 325 °C (hold 23min) at 12 °C/s (straight glass liner) in the solvent vent mode
Helium flow rate
200mL/min
Supplemental information
Observed volatilization fluxes of S-metolachlor and Benoxacor applied on soil with and without crop residues
Bedos C.1*, Alletto L.2,Durand B.1, Fanucci O.1,Brut A.3,Bourdat-DeschampsM.1,Giuliano S.2, Loubet B.1, Ceschia E.3,Benoit P.1
D2S7
117.604
210
117.604
210
137.57
236
117.740
117.740
137.73
N2S8
117.760
735
117.760
735
137.73
777
118.260
118.260
138.27
D3S9
118.281
210
118.281
210
138.27
207
118.417
118.417
Rdt (%)
rdt (%)
CV (%)
n
Smeto
104
4
5
105
100
76
30
3
OA
57
3
5
30
38
35
8
3
ESA
75
4
5
67
70
42
10
3
Figure S1Picture of the three wind tunnels placed in the field. The arrow with thick dashed line represents the airflowdirectioninside the tunnel(left). Map of the field for the fieldscaleexperiment. The red point indicates the location of the different masts
Number of pages:4
Number of Tables:4
Number of Figures:4
-Air sampling
Table S1Air sampling
Sample number
T-MM1
Duration(min)
T-MM3
Duration(min)
Plot
Duration(min)
Figure S2Latent heat of evaporationtogether with soil surface temperature for the wind-tunnel experiment
Figure S3Ratioof theconcentrations in S-metolachlor andbenoxacorin the airfor each sampling periods (left) and in the applied solution, measured application dose with filters, air concentrations averaged over all sampling periods and cumulated fluxes (right)
138.42
D3S10
118.438
210
118.438
210
138.43
198
118.573
118.573
138.56
D3S11
118.594
210
118.594
210
138.56
208
118.729
118.729
138.71
Table S2Chemical analysis
Splitless method
0.01-0.035-0.07-0.15-0.25-0.375-1 µg/ml
-Recovery tests for soil and crop residue extraction
Soil and crop residues samples were spiked before extraction with a mixture of s-metholachlor, OA and ESA. The concentrations of each compound were 100 µg/kg and 150 µg/kg for soil and crop residue, respectively, corresponding to a final concentration in the extract before analysis of 0.3 µg/mL and 0.1 µg/mL, respectively.
116.7Fra Baidu bibliotek9
795
116.719
795
136.73
777
117.271
117.271
137.27
D2S5
117.292
210
117.292
210
137.27
207
117.427
117.427
137.42
D2S6
117.448
210
117.448
210
137.42
205
117.583
117.583
137.56