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provides coniferyl ferulate(CAS#:1220-83-3) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of coniferyl ferulate are included as well.>> amp version: coniferyl ferulate
H Kobayashi 1
Removal efficiencies of sulfamonomethoxine (SMM) and its degradation intermediates formed by treatment with zeolite/TiO2 composites through adsorption and photocatalysis were investigated in fresh aquaculture wastewater (FAWW). Coexistent substances in the FAWW showed no inhibitory effects against SMM adsorption. Although coexistent substances in the FAWW inhibited the photocatalytic decomposition of SMM, the composites mitigated the inhibition, possibly because of concentration of SMM on their surface by adsorption. LC/MS/MS analyses revealed that hydroxylation of amino phenyl and pyrimidinyl portions, transformation of the amino group in the amino phenyl portion into a nitroso group, and substitution of the methoxy group with a hydroxyl group occurring in the initial reaction resulted in the formation of various intermediates during the photocatalysis of SMM. All detected intermediates had a ring structure, and almost all intermediates disappeared at the same time SMM was completely decomposed. Ph-OH formed by hydroxylation of the phenyl portion was detected upon decomposition of SMM during photocatalysis. The removal of Ph-OH by the composites proceeded more rapidly than that by TiO2 alone under ultraviolet irradiation. The SMM and Ph-OH were completely degraded by the composites within 30min, showing that the zeolite/TiO2 composites were effective in removing SMM and its intermediates from FAWW.
Degradation pathways; Fresh aquaculture wastewater; Intermediate behaviors; Sulfamonomethoxine; Zeolite/TiO(2) composites.
Removal Behaviors of Sulfamonomethoxine and Its Degradation Intermediates in Fresh Aquaculture Wastewater Using zeolite/TiO 2 Composites
Youhei Nomura 1, Shuji Fukahori 2, Haruhisa Fukada 3, Taku Fujiwara 4
2017 Oct 15
The distribution of sulfamonomethoxine (SMM) and trimethoprim (TMP) in egg yolk and white was measured during and after administration of a SMM/TMP combination in laying hens in doses of 8 g l(-)(1) and 12 g l(-)(1) in drinking water for 7 days. The SMM concentration reached maximal levels on day 2 of the post-treatment period for both doses (μg kg(-)(1)): 5920 and 9453 in yolk; 4831 and 6050 in white, in doses 1 and 2, respectively. Significant differences in the SMM and TMP concentrations between yolk and white in post treatment period were found. SMM dropped below the LOD (1.9 μg kg(-1)) in yolk after day 16 and 19 for doses 1 and 2. TMP reached maximal levels on day 3 after drug administration for doses 1 and 2 (μg kg(-)(1)): 6521 and 7329 in yolk, 1370 and 1539 in white. TMP residues were measured above LOD (0.3 μg kg(-)(1)) in yolk for both doses on day 37 post-treatment.
Egg; Elimination; LC-MS/MS; Laying hens; Sulfamonomethoxine; Trimethoprim; White; Yolk.
Distribution of Sulfamonomethoxine and Trimethoprim in Egg Yolk and White
Nina Bilandžić 1, Đurđica Božić 2, Božica Solomun Kolanović 2, Ivana Varenina 2, Luka Cvetnić 3, Željko Cvetnić 4
2015 Jul 1