Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Habibollah Eskandari"'
Publikováno v:
شیمی کاربردی روز, Vol 14, Iss 52, Pp 161-182 (2019)
In this research, clinoptilolite was modified in situ by using cetylpyridinium chloride and used for solid phase extraction-determination of sulfasalazine. Characteristics of the adsorbent were determined by scanning electron microscopy, X-ray diffra
Externí odkaz:
https://doaj.org/article/b27e5e0ea87b440fb69a58a128ada6f1
Autor:
Habibollah Eskandari, Simin Isazadeh
Publikováno v:
شیمی کاربردی روز, Vol 7, Iss 23, Pp 71-76 (2012)
Two sensitive and selective spectrophotometric methods are presented for the determination of trace amounts of nitrite and nitrate. It relies on the reaction of nitrite with sulfadimidine (SD) and cisapride (CP) in acidic medium to form diazonium ion
Externí odkaz:
https://doaj.org/article/31279dda64b949f2baa112877bb60773
Publikováno v:
شیمی کاربردی روز, Vol 4, Iss 10, Pp 21-32 (2009)
1-(2-Pyridylazo)-2-naphthol (PAN) has been used for the simultaneous determination of nickel and cobalt at trace levels. PAN complexes of nickel and cobalt in the pH 1.89 form red and green colored complexes, respectively which are soluble in aqueous
Externí odkaz:
https://doaj.org/article/cc91c924c77c432a9178bbd16047d17e
Publikováno v:
E-Journal of Chemistry, Vol 5, Iss 4, Pp 878-883 (2008)
A new method for the solid phase extraction (SPE) and determination of copper ions at low levels is presented. Extraction percent and the effects of some factors were evaluated. The detection limit was in the range of 2.26 µg·L-1. This procedure ha
Externí odkaz:
https://doaj.org/article/5439c2ca7c5e46d49d08c2c43f90d4b1
Autor:
Mohammad Reza Zamanloo, Rogayeh Salmanzadeh, Mehdi D. Esrafili, Bahareh Seyednoruziyan, Gholamhassan H. Imanzadeh, Habibollah Eskandari
Publikováno v:
Journal of Physical Organic Chemistry. 36
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c56e270fed7a43fc30352a318c2029bc
https://doi.org/10.1002/poc.4487
https://doi.org/10.1002/poc.4487
Two new methods were developed for sub-nanomolar electrochemical detection of orange II and sulfasalazine. A hydrated Ni(OH)2/Fe3O4 phase was prepared in situ and used for enrichment of orange II and sulfasalazine. Thereafter, the nanosorbent phase w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ced615b43b623bbb0914722404b33219
Publikováno v:
Bulletin of Environmental Contamination and Toxicology. 102:581-588
This study presents a simple dispersive solid phase extraction (DSPE) technique combined with headspace thermal desorption (HSTD) for extraction and determination of the most significant trihalomethanes (THMs), bromodichloromethane, bromoform, chloro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3170cb87a439c31b00159202d1f7fb34
https://doi.org/10.1007/s00128-019-02567-4
https://doi.org/10.1007/s00128-019-02567-4
Publikováno v:
Measurement. 132:292-302
Oxygenated graphene quantum dots (GQDs) were prepared and used as a new colorimetric reagent for analysis of pharmaceutical amines. Citric acid was thermalized to prepare GQDs with functional groups along their edges. The prepared GQDs were used as a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28335693268986f57c455ee38cfa9a59
https://doi.org/10.1016/j.measurement.2018.09.063
https://doi.org/10.1016/j.measurement.2018.09.063
Publikováno v:
Sensors and Actuators B: Chemical. 275:339-349
Graphene quantum dots (GQDs) with oxygen-containing functional groups along their edges have been prepared by controlled thermalization of citric acid to develop a new spectrophotometric reagent for hypochlorite determination. 2, 4-Dinitrophenylhydra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3b7f39c7b6dddee610431c3bbf096de
https://doi.org/10.1016/j.snb.2018.08.023
https://doi.org/10.1016/j.snb.2018.08.023