Results 121 to 130 of about 26,523 (162)

Determination of Capsinoids by HPLC-DAD in Capsicum Species

Journal of Agricultural and Food Chemistry, 2009
Capsicum fruits contain a newly discovered phytochemical called capsinoids. Because little is known about the quantities of these compounds in both sweet and pungent pepper fruits, a high-performance liquid chromatography (HPLC) method was developed to identify and quantify the capsinoids (naturally present E-capsiate and dihydrocapsiate) utilizing ...
Satyavan, Singh, Robert, Jarret, Vincent, Russo, George, Majetich, Joel, Shimkus, Rodney, Bushway, Brian, Perkins   +6 more
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Determination of ceftiofur in bovine plasma by HPLC-DAD

Journal of Pharmaceutical and Biomedical Analysis, 2006
Ceftiofur sodium is a third generation broad-spectrum cephalosporin, formulated as an intramuscular injection, which is used to treat respiratory diseases in swine, ruminants and horses. The thioester bond on ceftiofur is rapidly cleaved to give desfuroylceftiofur which is further metabolized to a disulfide dimer and various desfuroylceftiofur-protein ...
G A, Jacobson, S, Martinod, C P, Cunningham   +2 more
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Systematic Toxicological Analysis Using HPLC/DAD

Journal of Forensic Sciences, 1995
Abstract A high-performance liquid chromatographic method with diode-array detection (HPLC/DAD) for systematic toxicological analysis of human blood or plasma samples is presented. After single-step liquid/liquid extraction at pH 9.5 using chloroform/2-propanol/n-heptane (60:14:26, v/v/v), the drugs elute isocratically from a NovaPak C18
A, Tracqui, P, Kintz, P, Mangin
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Determination of Acequinocyl and Hydroxyacequinocyl on Fruits and Vegetables by HPLC-DAD

Journal of Agricultural and Food Chemistry, 2004
A method for determining residues of the new reduced-risk pesticide acequinocyl and its deacetylated derivative hydroxyacequinocyl on fruits and vegetables (grapes, lemons, pears, and tomatoes) by HPLC is described. The pesticides were extracted from the fruits and vegetables with hexane and ethyl acetate solution (1:1, v/v), determined by HPLC-DAD at ...
CABONI, PIERLUIGI, SARAIS, GIORGIA, MELIS, MARINELLA, CABRAS M, CABRAS P.   +4 more
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HPLC-DAD analysis of florfenicol and thiamphenicol in medicated feedingstuffs

Food Additives & Contaminants: Part A, 2019
A simple and reliable method using liquid chromatography with diode array detector was developed for the simultaneous determination of florfenicol and thiamphenicol in medicated feed. The analytes were extracted from the minced feed with methanol and ethyl acetate (1:1, v/v). Next, the extract was further cleaned up by dispersive solid phase extraction
Ewelina Patyra, Krzysztof Kwiatek
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Dissipation of Hexythiozox on Beans Pods by HPLC–DAD

Bulletin of Environmental Contamination and Toxicology, 2012
An effective analytical method for the residue analysis of a novel acaricide hexythiozox and its dissipation in beans pods were studied. Hexythiozox residues were extracted from beans pods samples and the extract was cleaned up according to QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) method and determined by high-performance liquid ...
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Determination of EDTA in feed and premix formulations by HPLC-DAD

Food Chemistry, 2015
A simple analytical method for the quantitative determination of ethylenediaminetetraacetic acid (EDTA) in feed and premix formulations was developed and validated. The method involves an extraction with an acidic ferric chloride solution, to quantitatively convert EDTA species in the samples into the Fe(III)-EDTA complex, and its subsequent detection ...
Francesco, Chiumiento, Antonio, D'Aloise, Francesca, Marchegiani, Valeria, Melai   +3 more
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HPLC–DAD determination of opioids, cocaine and their metabolites in plasma

Forensic Science International, 2006
High performance liquid chromatography with diode array detection (HPLC-DAD) was used to develop a method for the simultaneous determination of morphine, codeine, 6-acetylmorphine (6AM), cocaine, benzoylecgonine (BEG), cocaethylene, methadone and its metabolite, 2-ethylidene-1,5-dimethyldiphenylpyrrolidine (EDDP), in plasma.
P, Fernández, L, Morales, C, Vázquez, A M, Bermejo, M J, Tabernero   +4 more
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[Fingerprints of Tongmai Keli by HPLC-DAD-MS].

Yao xue xue bao = Acta pharmaceutica Sinica, 2012
In order to clarify the chemical composition of Tongmai Keli, a HPLC fingerprint was established, and the 22 peaks were characterized by LC-DAD-MS. The herbal sources of these peaks were assigned. The results implied that genistin 8-C-glucoside, puerarin, daidzein 8-C-apiosyl (1, 6)-O-glucoside, daidzin, and salvianolic acid B were the main ...
Bei-Jia, Li, Cheng, Xiang, Xiu-Wei, Yang, Li-Jun, Wu, De-An, Guo, Min, Ye   +5 more
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Detection of the Antibiotic TMP in the Water with HPLC-DAD

Applied Mechanics and Materials, 2015
Thispaper studies the method of detecting antibiotic trimethoprim (TMP) in theenvironment water, sewage and tap water with high performance liquidchromatography –diode array detector (HPLC-DAD). The chromatographic conditionis confirmed that: the stationary phase is ODS, the mobile phase is acetonitrileand methanoic acid aqueous solution of 0.1%（12:88）,
Xiao Na Ji, Dong Mei Wang, Zhi Min Ren, Hua Yang, Yan Bo Xiao, De Jun Bian   +5 more
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