161 research outputs found
DİLEK KILCAN, GÜLER EKMEKÇİ, HABİBE TEZCAN, BAKIRIN SEÇİMLİ KOLORİMETRİK KATI FAZ EKSTRAKSİYONU/FİBER OPTİK REFLEKTANS SPEKTROSKOPİSİ İLE TAYİNİ, 24. ULUSAL KİMYA KONGRESİ KARAELMAS ÜNİVERSİTESİ, ZONGULDAK
Duygu Aksu, Reşat Apak apid Determination of Calcium in Milk and Water Samples by Reflectance Spectroscopy, Am. J. of Anal. Chem.
Gamze Çetintaş, Asiye Aslıhan Avan, Serkan Naci Koç, İsmail Boz "Preparation of PlatinumNanoparticles-Graphene Modified Electrode and Sensitive Determination of Paracetamol", The 13th edition of Trends in Nanotechnology International Conference (TNT2012), Madrid-Spain, 10-14 September 2012
Filik H., Doğutan M., Çekiç S. D., Apak R. Alüminyum-Galyumun Önderişiklendirilmesi ve Ayrılması için Amberlit XAD-2-5-Miristoil-8-Hidroksikinolin Kelatlayıcı Reçinesinin sentezi. YTÜD
Apak R., Yalcin S. and Demirci Cekic S., "Chelating Ion Exchange for Preconcentration and Speciation in Analytical Chemistry: Selected Examples" (Proceedings of IEW 2006, p.175); International Workshop on Frontiers and Interfaces of Ion Exchange, 11-15 June 2006, Hotel Porto Bello, Antalya,TURKEY.
Dilek Kılcan, Habibe Tezcan, Güler Ekmekci, Highly selective optical fiber sensing for copper ion based on immobilized 1-(o-carboxyphenyl)-3,5-diphenylformazan, 5. Ulusal Analitik Kimya Kongresi Atatürk Üniversitesi, Erzurum
Preconcentration and speciation of chromium(III) in waters by using 5-palmitoyl-8-hydroxyquinoline immobilized on a nonpolar adsorbent
A method for the quantitative separation and preconcentration of trace amount Cr(III) in real samples has been developed. It is based on the sorption of Cr(III) ions onto a column of Amberlite XAD-2 resin functionalized with 5-palmitoyl-8-hydroxyquin oline reagent. The resin was used for speciation and preconcentration of chromium because this functionalized resin is selective for Cr(III) ions. The effect of pH, flow-rate, sorption capacity, reusability and effect of various metal cations and salt anions on the sorption on to the resin were investigated. The sorption is quantitative in the pH range of 4.5-7.0, and Cr(III) ion was desorbed by using hydrochloric acid. The amount of metal ion in the eluate was determined by a flame atomic absorption spectrometer. Total chromium was obtained by an efficient reduction of Cr(VI) to Cr(III) by hydroxylamine. The procedure has been applied to the determination and speciation of chromium in lake water, and in the chromium-plating baths
DİLEK KILCAN, HAYATİ FİLİK İNDİKANIN (İNDOKSİL B-D-GLİKOZİD) BULUTLANMA NOKTASI EKSTRAKSİYONU İLE SPEKTROFOTOMETRİK TAYİNİ, XII. ULUSAL SPEKTROSKOPİ KONGRESİ (ULUSLARARASI KATILIMLI) 18-22 MAYIS 2011, S.32, MANAVGAT/ANTALYA
Gamze Çetintaş, Derya Giray Application of carbon-paste electrode modified with iron(III) -phenylflurone for cyclic voltammetric determination of ascorbic acid, 9th Electrochemistry Meeting in Turkey, 25-29 september, İzmir/Turkey
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