Yazar "Asan, A" için listeleme
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Determination of major phenolic compounds in water by reversed-phase liquid chromatography after pre-column derivatization with benzoyl chloride
Asan, A; Isildak, I (Elsevier Science Bv, 2003)A simple reversed-phase LC method capable of detecting ng/ml quantities of phenolic compounds in water is described. Pre-column derivatization with benzoyl chloride is used for the separation and determination o-cresol, ... -
Flow-injection spectrophotometric determination of cobalt(II) at low mu g 1(-1) levels with 4-benzylpiperidinedithiocarbamate
Andac, M; Asan, A; Isildak, I; Cesur, H (Elsevier Science Bv, 2001)A rapid, sensitive and reproducible flow-injection (FI) analysis method is described for the spectrophotometric determination of cobalt(II) using 4-benzylpiperidinedithiocarbamate as a chromogenic reagent. The method ... -
Flow-injection spectrophotometric determination of copper (II) ion at low mu g L-1 levels
Asan, A (Gordon Breach Publishing, Taylor & Francis Group, 2001)A highly selective, sensitive and fast determination of trace amounts of copper (II) ion is described. The method is based on the formation of the coloured Cu(II)-N,N'-o-phenylenebis(salicylaldimine) (PBS) complex, which ... -
Flow-injection spectrophotometric determination of copper(II) ion at low mu g L-1 levels using 4-benzylpiperidinedithiocarbamate
Asan, A; Andac, M; Isildak, I (Japan Soc Analytical Chemistry, 2001)… -
Flow-injection spectrophotometric determination of nanogram levels of iron(III) with N,N-dimethylformamide
Asan, A; Andac, M; Isildak, I (Japan Soc Analytical Chemistry, 2003)A simple and fast flow-injection spectrophotometric method has been described for the determination of iron(III). The method is based on the measurement of absorbance intensity of the complex that is formed between iron(III) ... -
A rapid HPLC determination of C-2-C-7 aliphatic diamines by precolumn derivatization with acetylacetone in methanol-water
Asan, A; Isildak, I (Springer-Verlag Wien, 1999)A rapid reversed-phase high performance liquid chromatographic analysis for the determination of seven aliphatic diamines in water is described. Precolumn derivatization with acetylacetone is used for traces of aliphatic ... -
A simple and selective flow-injection spectrophotometric determination of copper(II) by using acetylsalicylhydroxamic acid
Asan, A; Isildak, I; Andac, M; Yilmaz, F (Elsevier Science Bv, 2003)A new simple, and rapid flow-injection spectrophotometric method is developed for the determination of trace amounts of Cu(II) by using a new chromogenic reagent acetylsalicylhydroxamic acid (ACSHA). The method is based ... -
Simultaneous detection of monovalent anions and cations using all solid-state contact PVC membrane anion and cation-selective electrodes as detectors in single column ion chromatography
Isildak, I; Asan, A (Elsevier Science Bv, 1999)The overall efficiency of ion chromatographic procedures allows the possibility of routine separation and detection of common inorganic and organic anions and cations at low levels in a simultaneous system. A simple and ... -
Spectrofluorometric determination of mercury(II) with murexide
Andac, M; Asan, A; Isildak, I (Springer/Plenum Publishers, 2003)A very sensitive and selective spectrofluorometric method has been developed for Hg(II) determination in pharmaceutical and environmental samples. The method is based on measuring the decrease in fluorescence intensity of ... -
Spectrophotometric determination of copper(II) at low mu g 1(-1) levels using cation-exchange microcolumn in flow-injection
Isildak, I; Asan, A; Andac, M (Elsevier Science Bv, 1999)A simple spectrophotometric flow-injection method is reported for the highly sensitive and fast determination of copper(II). The method is based on the formation of coloured Cu(II)-(4-methylpiperidinedithiocarbamate)(2) ... -
Spectrophotometric flow-injection analysis of mercury(II) in pharmaceuticals with p-nitrobenzoxosulfamate
Andac, M; Asan, A; Bekdemir, Y; Kutuk, H; Isildak, I (Elsevier, 2003)A new, simple and rapid spectrophotometric FI method for the accurate band precise determination of Hg(II) in pharmaceutical preparations has been developed. The method is based on the measuring the decrease of absorbance ...