2011
DOI: 10.4028/www.scientific.net/amr.356-360.35
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Sorption and pH Effect on Selected Antibiotics in Soils

Abstract: This study was to investigate sorption behavior of selected antibiotics in soils. The pH effect on sorption was also studied. Results showed organic matter was an important factor in the sorption of sulfamethoxazole and sulfapyridine to soil, while trimethoprim could be easily sorbed on different types of soils, and displayed a higher sorption potential than sulfamethoxazole and sulfapyridine. The extent of sulfamethoxazole sorption on selected soils was highest at low pH and decreased with increasing pH. An i… Show more

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Cited by 3 publications
(4 citation statements)
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“…This behavior infers that interaction with the soil surface area is not the main driving force for TMP adsorbing to or remaining in the soil profile. As was observed in previous research, TMP may become sequestered in the pore space [42]. Grinding the soil appears to have the same effect as sonicating the soil before extraction, since the recoveries with grinding and freeze-drying the soil are comparable to and even better than the recoveries found in the literature that ranged from 65-77%.…”
Section: Trimethoprimsupporting
confidence: 76%
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“…This behavior infers that interaction with the soil surface area is not the main driving force for TMP adsorbing to or remaining in the soil profile. As was observed in previous research, TMP may become sequestered in the pore space [42]. Grinding the soil appears to have the same effect as sonicating the soil before extraction, since the recoveries with grinding and freeze-drying the soil are comparable to and even better than the recoveries found in the literature that ranged from 65-77%.…”
Section: Trimethoprimsupporting
confidence: 76%
“…Although the necessity of an extracting solution with a high organic phase correlates with past literature for the soil extraction of TMP (Figure 2, Table S1), the overall recoveries of TMP during this study were significantly lower than past extraction studies [41,42] where extractions with sonification and ultrasonification systems resulted in 63-77% recoveries. Based on the higher recoveries with sonification, TMP may be forming complexes with soil particles, establishing strong interactions with sorption sites, or becoming sequestered in pore spaces and, therefore, requiring physical disruption to remove the antibiotic compound from the soil matrix [43].…”
Section: Trimethoprimsupporting
confidence: 65%
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“…The following supporting information can be downloaded at: , Figure S1: Absolute errors (AE) distributions of K f and K d estimation across different OC and pH ranges in sub-datasets “a” and “b” using the pedotransfer equations given in Table 4 ; Table S1: Statistical characteristics of basic properties of the soils used for individual target antibiotics; Table S2: SCP sorption parameters and associated soil properties; Table S3: SMT sorption parameters and associated soil properties; Table S4: SDZ sorption parameters and associated soil properties; Table S5: SMX sorption parameters and associated soil properties; Table S6: OTC sorption parameters and associated soil properties; Table S7: TC sorption parameters and associated soil properties; Table S8: CTC sorption parameters and associated soil properties; Table S9: pH distribution of the soils in sub-datasets “A” (for K f ) and “B” (for K d ) and main antibiotic species in soil water; Table S10: SDM sorption parameters, associated soil properties, and the performance of the model established for SMT in this study. References [ 76 , 77 , 78 , 79 , 80 , 81 , 82 , 83 , 84 , 85 , 86 , 87 , 88 , 89 , 90 , 91 , 92 , 93 , 94 , 95 , 96 , 97 , 98 , 99 , 100 , 101 , 102 , 103 , 104 , 105 , 106 , 107 , 108 , 109 , 110 , 111 , 112 , 113 , 114 ...…”
mentioning
confidence: 99%