Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Payman Hashemi"'
Autor:
Fereshte Farajian, Payman Hashemi
Publikováno v:
Acta Chimica Slovenica, Vol 69, Iss 3, Pp 714-721 (2022)
A novel superparamagnetic nano-composite of Fe3O4@SiO2 coated by tragacanth gum (TG) as a natural product has been prepared. The obtained SiO2@Fe3O4@TG nanoparticles were characterized by Fourier transform infrared spectroscopy, energy dispersive X-r
Externí odkaz:
https://doaj.org/article/e65bce896d1e4028b5de2d82e88d1405
Publikováno v:
Chemosensors, Vol 10, Iss 2, p 44 (2022)
Detecting warfarin levels in the blood is of critical importance in anticoagulant therapy because it is imperative that the concentration of the drug is maintained within a specific range. In this paper, we present a proof-of-concept of a novel sensi
Externí odkaz:
https://doaj.org/article/d89bd02ef47c4dbe952d2e15d505e307
Autor:
Tooraj Amini, Payman Hashemi
Publikováno v:
Analytical and Bioanalytical Chemistry Research, Vol 4, Iss 2, Pp 239-247 (2017)
A reversed-phase salt assisted liquid-liquid extraction (RP-SALLE) method was developed for the preconcentration and determination of trace crocin in herbal medicines by high-performance liquid chromatography (HPLC). In developed method, the roles of
Externí odkaz:
https://doaj.org/article/31a2a327b4b2429097a05ae0b3154ec0
Publikováno v:
Analytical and Bioanalytical Chemistry Research, Vol 1, Iss 2, Pp 83-91 (2014)
The volatile components of Citrus aurantium L. flowers were characterized by GC-MS with two different extraction techniques, hydrodistillation (HD) and ultrasonic-assisted headspace solid phase microextraction (UA-HS-SPME). In the SPME method, the vo
Externí odkaz:
https://doaj.org/article/4a68c06078d240b088404253c4b16f44
Publikováno v:
Herbal Medicines Journal, Vol 2, Iss 2 (2017)
Background and Aim: Several gall varieties are found in Lorestan Province, Iran, on Quercus infectoria oak trees, which contain important phenolic compounds. In this work, a miniaturized matrix solid-phase dispersion (MSPD) extraction method has been
Externí odkaz:
https://doaj.org/article/0f60626b97a74ad0b9e81430d8bab496
Autor:
Fariba Nazari Serenjeh, Payman Hashemi
Publikováno v:
Herbal Medicines Journal, Vol 2, Iss 1 (2017)
Background and Aim:The peels of six Iranian pomegranates (Punica granatum L.) cultivars, as a traditional medicine, were treated with a new miniaturized matrix solid-phase dispersion (MSPD) method for the HPLC determination of ellagic acid (EA). Mat
Externí odkaz:
https://doaj.org/article/303a5747e38541fab16fb8fd0cc7e570
Reversed-phase dispersive liquid-liquid microextraction (RP-DLLME) was proposed in the present work to separate and preconcentrate metal cations in sesame oil before their detection through ion chromatography-conductivity detection (IC-CDD). This met
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9d9629138e86b9e725439ea93649c04
https://doi.org/10.21203/rs.3.rs-2913419/v1
https://doi.org/10.21203/rs.3.rs-2913419/v1
Autor:
Masoumeh Firouzy, Payman Hashemi
Publikováno v:
Journal of Chromatographic Science.
A magnetic needle headspace single-drop microextraction (MN-HS-SDME) method coupled to HPLC/UV has been developed. Trihexyl(tetradecyl)phosphonium chloride was employed as an ionic liquid (IL) solvent for the headspace extraction of some chlorophenol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1cd9c08c43ab26a2c139d4ad2dba7ca3
https://doi.org/10.1093/chromsci/bmad011
https://doi.org/10.1093/chromsci/bmad011
Autor:
Sahar Rezaeinejad, Payman Hashemi
Publikováno v:
Food Analytical Methods. 14:2461-2468
A rapid and sensitive method was developed for the preconcentration and quantitation of inorganic anions in virgin olive oil (VOO) by coupling reversed-phase dispersive liquid–liquid microextraction (RP-DLLME) to ion chromatography with conductivit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22c1538ed8657892f6961f2fcf2d2574
https://doi.org/10.1007/s12161-021-02071-8
https://doi.org/10.1007/s12161-021-02071-8