Scopus
YÖKSİS DOI Eşleşti
SJR Q1
Towards multimodal HPLC separations on humic acid-bonded aminopropyl silica: RPLC and HILIC behavior
Talanta · Eylül 2011
YÖKSİS Kayıtları
Towards multimodal HPLC separations on humic acid bonded aminopropyl silica RPLC and HILIC behavior
TALANTA · 2011 SCI-Expanded
Prof. Dr. HÜSEYİN KARA →
YÖKSİS Kayıtları — ISSN Eşleşmesi
Square wave voltammetry based on determination of copper II ions by polyluteolin and polykaempferol modified electrodes
2011 ISSN: 00399140 SSCI
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4 tert butylcalix 4 arene having nitrile pendant groups as Hg2 selective receptors
2013 ISSN: 00399140 SCI-Expanded 7 atıf
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4 tert butylcalix 4 arene having nitrile pendant groups as Hg2 selective receptors
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Application of multivariate chemometric techniques for simultaneous determination of five parameters of cottonseed oil by single bounce attenuated total reflectance Fourier transform infrared spectroscopy
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Preparation of a new 1 3 alternate calix 4 arene bonded HPLC stationary phase for the separation of phenols aromatic amines and drugs
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Development of a pH sensing membrane electrode based on a new calix 4 arene derivative
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Square wave voltammetry based on determination of copper II ions by polyluteolin and polykaempferol modified electrodes
2011 ISSN: 00399140 SCI-Expanded
Prof. Dr. YASEMİN ÖZTEKİN →
Development of poly 3 aminophenylboronic acid modified graphite rod electrode suitable for fluoride determination
2014 ISSN: 00399140 SCI-Expanded
Prof. Dr. YASEMİN ÖZTEKİN →
Development of a pH sensing membrane electrode based on a new calix 4 arene derivative
2015 ISSN: 00399140 SCI-Expanded 3 atıf
Prof. Dr. MUSTAFA YILMAZ →
Application of multivariate chemometric techniques for simultaneous determination of five parameters of cottonseed oil by single bounce attenuated total reflectance Fourier transform infrared spectroscopy
2014 ISSN: 0039-9140 SCI-Expanded
Dr. Öğr. Üyesi FATİH DURMAZ →
Novel magnetite nanoparticle based on BODIPY as fluorescent hybrid material for Ag I detection in aqueous medium
2016 ISSN: 00399140 SCI-Expanded
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Anthracene excimer based turn on fluorescent sensor for Cr3 and Fe3 ions Its application to living cells
2016 ISSN: 00399140 SCI-Expanded
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Novel magnetite nanoparticle based on BODIPY as fluorescent hybrid material for Ag I detection in aqueous medium
2016 ISSN: 00399140 SCI-Expanded
Prof. Dr. ERSİN GÜLER →
Anthracene excimer based turn on fluorescent sensor for Cr3 and Fe3 ions Its application to living cells
2016 ISSN: 00399140 SCI-Expanded
Prof. Dr. ÖZCAN KOÇYİĞİT →
Novel magnetite nanoparticle based on BODIPY as fluorescent hybrid material for Ag I detection in aqueous medium
2016 ISSN: 00399140 SCI-Expanded
Prof. Dr. MUSTAFA ÖZMEN →
Rapid and real-time detection of arginine enantiomers by QCM sensorhaving a Calix[4]arene receptor bearing asymmetric centers
2019 ISSN: 0039-9140 SCI-Expanded
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Application of multivariate chemometric techniques for simultaneous determination of five parameters of cottonseed oil by single bounce attenuated total reflectance Fourier transform infrared spectroscopy
2014 ISSN: 0039-9140 SCI-Expanded
Prof. Dr. HÜSEYİN KARA →
Towards multimodal HPLC separations on humic acid bonded aminopropyl silica RPLC and LEC behavior
2011 ISSN: 0039-9140 SCI-Expanded
Prof. Dr. HÜSEYİN KARA →
Towards multimodal HPLC separations on humic acid bonded aminopropyl silica RPLC and HILIC behavior
2011 ISSN: 0039-9140 SCI-Expanded
Prof. Dr. HÜSEYİN KARA →
Makale Bilgileri
Dergi
Talanta
ISSN00399140
Yayın TarihiEylül 2011
Cilt / Sayfa85 · 1472-1482
Scopus ID2-s2.0-79961127257
Özet
The stationary phase characteristics of the material obtained through immobilization of humic acid (HA) to aminopropyl silica (APS) via amide-bond formation were investigated. The material was characterized in terms of elemental analysis, FTIR, thermogravimetric analyses, pH point of zero charge measurements, potentiometric titrations, and contact angle measurements. Amount of HA bonded to APS was determined from the elemental analysis results, and found as 170 mgHA/gAPS. Stability of the material was studied in aqueous media at different pH values, and amount of HA released at pH = 8 did not exceed 2% of the total immobilized HA. Stationary phase characteristics of the well-characterized material were investigated in an HPLC system by using some low-molecular weight polar compounds (i.e. some nucleosides and nucleobases) as test solutes. Effect of some experimental variables such as column conditioning, composition of mobile phase, and temperature on the chromatographic behavior of the studied compounds was studied. Role of ammonium solutions at different pH values on retentive properties of the species was also studied. Retention factors (k′) versus volume percentage of organic modifier exhibited a U-curve, which was evaluated as an indication for RPLC/HILIC mixed-mode behavior of the stationary phase. Orthogonality between RPLC and HILIC modes was analyzed through geometric approach, and found as 48.5%. Base-line separation for the studied groups of compounds was achieved under each studied mode, and some differentiations were observed in elution order of the compounds depending on the HPLC mode applied. Chromatograms recorded under RPLC and HILIC modes were compared with those recorded on APS under similar conditions, and thus the influence/importance of HA immobilization process was evaluated in detail. In light of the obtained results, immobilized HA is represented as a useful stationary phase for HPLC separations. © 2011 Elsevier B.V. All rights reserved.
Yazarlar (2)
1
Orhan Gezici
2
Huseyin Kara
Anahtar Kelimeler
Chromatography
Humic acid
Immobilization
Nucleobases
Nucleosides
Orthogonality
Stationary phase
Kurumlar
Niğde Ömer Halisdemir University
Nigde Turkey
Selçuk Üniversitesi
Selçuklu Turkey
Scimago Dergi (ISSN Eşleşmesi)
Talanta
Q1
SJR Skoru0,975
H-Index202
YayıncıElsevier B.V.
ÜlkeNetherlands
Analytical Chemistry (Q1)
Spectroscopy (Q1)
Biochemistry (Q2)
Metrikler
28
Atıf
2
Yazar
7
Anahtar Kelime