Bound Residue

2016 ◽  
Author(s):  
Gerald R. Stephenson ◽  
Ian G. Ferris ◽  
Patrick T. Holland ◽  
Monica Nordberg
Keyword(s):  
Bound Residue

Kinetics of extractable residue, bound residue and mineralization of a novel herbicide, ZJ0273, in aerobic soils

Chemosphere ◽  
2009 ◽  
Vol 76 (8) ◽  
pp. 1036-1040 ◽  
Author(s):  
Haiyan Wang ◽  
Qingfu Ye ◽  
Ling Yue ◽  
Zhiyang Yu ◽  
Ailiang Han ◽  
...  
Keyword(s):  
Bound Residue ◽  
Kinetics Of

Degradation, Metabolism, and Bound-Residue Formation and Release of Tetrabromobisphenol A in Soil during Sequential Anoxic–Oxic Incubation

2013 ◽  
Vol 47 (15) ◽  
pp. 8348-8354 ◽  
Author(s):  
Jie Liu ◽  
Yongfeng Wang ◽  
Bingqi Jiang ◽  
Lianhong Wang ◽  
Jianqiu Chen ◽  
...  
Keyword(s):  
Tetrabromobisphenol A ◽  
Bound Residue

scholarly journals Analysis of Photochemically Induced Cotton Bound Residues of Deltamethrin by an Immunoassay Technique

2009 ◽  
Vol 92 (6) ◽  
pp. 1815-1820
Author(s):  
Hamdy R Soltan ◽  
Fawkia A Abd El-Megeed ◽  
Fathia I Mustafa ◽  
Hanafy M Ismail
Keyword(s):  
Parent Compound ◽  
High Specificity ◽  
Test System ◽  
Cross Reactivity ◽  
Competitive Elisa ◽  
Dot Blot ◽  
Bound Residues ◽  
Elisa Format ◽  
Photodegradation Products ◽  
Bound Residue

Abstract A sensitive and selective indirect competitive ELISA was developed for the detection of deltamethrin bound residues on cotton texture. Cross-reactivity studies with the main deltamethrin photodegradation products showed high specificity of deltamethrin polyclonal antibody to the parent compound. No cross-reactivity was measured with deltamethrin photodegradtion products derived from the alcohol moiety (3-phenoxybenzaldhyde, phenoxybenzyl alcohol, cyanohydrin, and 3-phenoxybenzoic acid), and lesser amounts were observed with the acid moiety (deltamethric acid). The dot-blot immunoassay was performed on cotton fabric discs spiked with deltamethrin and irradiated to assess the suitability of this system to detect bound residue. The dot-blot immunoassay results revealed that the bound form of deltamethrin has binding affinity with deltamethrin antibody similar to the parent compound. In addition, the test system was used to detect bound and free residues of deltamethrin on cotton samples exposed to three cycles of simulated sunlight and water wash. The results obtained suggest that the competitive ELISA format can be used as a tool for monitoring free and bound residues of deltamethrin impregnated on cotton targets.

Overview on Bound Residue Issue–Regulatory Aspects

1990 ◽  
Vol 22 (6-8) ◽  
pp. 595-599 ◽  
Author(s):  
Gerald B. Guest ◽  
Suzanne C. Fitzpatrick
Keyword(s):  
Regulatory Aspects ◽  
Bound Residue

Photochemically Induced Bound Residue Formation of Carbamazepine with Dissolved Organic Matter

2017 ◽  
Vol 51 (10) ◽  
pp. 5523-5530 ◽  
Author(s):  
Julia Raeke ◽  
Oliver J. Lechtenfeld ◽  
Bettina Seiwert ◽  
Till Meier ◽  
Christina Riemenschneider ◽  
...  
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Bound Residue

Degradation and bound-residue formation of nonylphenol in red soil and the effects of ammonium

2014 ◽  
Vol 186 ◽  
pp. 83-89 ◽  
Author(s):  
Jie Liu ◽  
Jun Shan ◽  
Bingqi Jiang ◽  
Lianhong Wang ◽  
Bin Yu ◽  
...  
Keyword(s):  
Red Soil ◽  
Bound Residue

scholarly journals Enzymatic Transformation and Bonding of Sulfonamide Antibiotics to Model Humic Substances

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
J. Schwarz ◽  
H. Knicker ◽  
G. E. Schaumann ◽  
S. Thiele-Bruhn
Keyword(s):  
Humic Substances ◽  
Trametes Versicolor ◽  
Agricultural Soils ◽  
Covalent Binding ◽  
Extraction Procedure ◽  
Resonance Spectroscopy ◽  
Substituted Phenols ◽  
Scanning Calorimetry ◽  
Enzymatic Transformation ◽  
Bound Residue

Sulfonamides are consumed as pharmaceutical antibiotics and reach agricultural soils with excreta used as fertilizer. Subsequently, nonextractable residues rapidly form in soil, which has been researched in a couple of studies. To further elucidate conditions, strength, and mechanisms of the fixation to soil humic substances, three selected sulfonamides were investigated using the biochemical oligomerization of substituted phenols as a model for the humification process. Catechol, guaiacol, and vanillin were enzymatically reacted using laccase fromTrametes versicolor. In the presence of the substituted phenols alone, the concentration of sulfonamides decreased. This decrease was even more pronounced when additional laccase was present. Upon the enzymatic oligomerization of the substituted phenols to a humic-like structure the sulfonamides were sorbed, transformed, sequestered, and nonextractable bound. Sulfonamides were transformed depending on their molecular properties. Fractions of different bonding strength were determined using a sequential extraction procedure. Isolated nonextractable products were analyzed by chromatographic, spectroscopic, and calorimetric methods to identify coupling and bonding mechanisms of the sulfonamides. Differential scanning calorimetry measurements suggested cross-linking of such incorporated sulfonamides in humic oligomers. Nuclear magnetic resonance spectroscopy measurements showed clear differences between the vanillin-sulfapyridine oligomer and the parent sulfapyridine indicating bound residue formation through covalent binding.

Use of 15N-depleted artificial compost in bound residue studies

Chemosphere ◽  
2005 ◽  
Vol 59 (5) ◽  
pp. 649-658 ◽  
Author(s):  
Anne Berns ◽  
Ralph Vinken ◽  
Marko Bertmer ◽  
Andrea Breitschwerdt ◽  
Andreas Schäffer
Keyword(s):  
Bound Residue

Trenbolone Acetate: Experiences with Bound Residues in Cattle Tissues

1978 ◽  
Vol 61 (5) ◽  
pp. 1274-1279
Author(s):  
John Joseph Ryan ◽  
Bernd Hoffmann
Keyword(s):  
Proteolytic Enzymes ◽  
Weight Fraction ◽  
Bovine Liver ◽  
Water Soluble ◽  
Insoluble Residue ◽  
High Molecular Weight Fraction ◽  
Trenbolone Acetate ◽  
Bound Residues ◽  
Bound Residue

Abstract Two heifers were implanted with 300 mg of the radiolabeled anabolic steroid, trenbolone acetate (TBA). After a 60 day slaughter and a 60 day removal followed by 76 day slaughter, total 3H-content in various tissues was 0.5—25 ng/g equivalents of TBA. Radioimmunoassay of the tissues showed that only 1-5% of the total residue present was TBA, its main metabolite trenbolone (TBOH), and TBOH glucuronide, plus up to 5% of other organic-soluble material. Of the radioactivity remaining about half was directly water-soluble, and the insoluble residue could be made water-soluble by treatment with the proteolytic enzymes pepsin and trypsin. These 2 portions were purified with Sephadex G-25 to give a low and high molecular weight fraction. Raney nickel reduction of sulfur bonds in either fraction released up to 50% of radioactivity into the organic phase. TLC showed that the latter contained 2 components which had characteristics similar to TBOH and its metabolites, and thus were at least partly drug-related metabolites. In vitro experiments with bovine liver also showed a small but definite protein binding. It is proposed that in dealing with these covalently bound residues, priority be given to the reactive drug intermediate and the type of binding to macromolecules rather than to the presence of the bound residue itself.

Sign in / Sign up

Export Citation Format

Share Document