Enrichment and determination of Ni2+ ions in water samples with a diamino-4-(4-nitro-phenylazo)-1H-pyrazole (PDANP) by using FAAS

Çiftçi, Harun; Yalçin, Halil; Eren, Erdal; Ölçücü, Ali; Şekerci, Memet

doi:10.1016/j.desal.2010.02.018

Cited by 32 publications

(13 citation statements)

References 19 publications

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“…Generally, recovery values increase with increasing amount of resin. But, to attain the expected increase in recovery values with increasing amount of resin, the volume of the eluent should be increased in same ratio 22. Because of this statement, decrease in recovery values was obtained for the experiments in which resin amount was higher than 700 mg when the volume of eluent was held constant at 5 mL.…”

Section: Resultsmentioning

confidence: 99%

Separation and Preconcentration of Cobalt Using a New Schiff Base Derivative on Amberlite XAD‐7

Çiftçi

2010

CLEAN Soil Air Water

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In this study, a new solid-phase extraction procedure has been developed for preconcentration and determination of Co ions in different water samples by flame atomic absorption spectrometry (FAAS). Cobalt was preconcentrated as N,N 0 -bis(pyridine-2-ylmethyl)benzene-1,4-diamine (Co-BPMBDA) from sample solutions using a column containing Amberlite XAD-7 and was determined. In order to achieve the best performance for the method, effects of several parameters such as pH, concentrations of ligand, sample flow rate, eluent, and matrix ions on the method efficiency were investigated. Under optimum conditions, the preconcentration factor was found to be 200 for 1000 mL waters samples. Detection limit based on the 3S b criterion was calculated as 0.24 mg/L for 100 mL of sample solution and relative standard deviation was found to be 1.8%. The method was applied to determine the trace amounts of cobalt in water samples.Keywords: Amberlite XAD-7; Cobalt; Preconcentration; FAAS; Solid-phase extraction IntroductionCobalt is an important element for industry and for biological systems. Cobalt is present in vitamin B 12 and is an essential micronutrient for all living systems [1]. Drinking water, food, and inhalation are common ways of cobalt contamination for living organisms. The deficiency of cobalt in human and animal bodies results in anemia [2], while large amounts of cobalt causes to toxic effects (mechanism to fail in asthma, kidney and liver disorders, heart growth and expansion, sinus tachycardia), usually after occupational exposure to cobalt dust (cobalturia, cobaltemia) [3, 4]. There are two main alternative sources of cobalt for aquatic environment: Natural sources and anthropogenic sources. The natural sources include volcanic emissions, the weathering of rocks by the action of water and decomposition of plant waste. The main human-related sources of cobalt to aquatic environment are sewage and industrial waste [5].Since one of the routes of incorporation of cobalt into the human body is by ingestion, its determination in drinking water, food, and environmental samples such as soil and dust becomes very important [6].Several analytical techniques including electrothermal atomic absorption spectrometry (ETAAS) [7], inductively coupled plasma optical emission spectrometry (ICP-OES) [8], inductively coupled plasma mass spectrometry (ICP-MS) [9], flame atomic absorption spectrometry (FAAS) [10], and high performance liquid chromatography (HPLC) [11,12] have been devised for the determination of cobalt in different matrixes.Due to the high complexity of the matrixes and the low level of cobalt ions in the aquatic samples, separation, and preconcentration step prior to cobalt analysis are needed [13,14]. There are many methods for preconcentration such as, coprecipitation, solvent extraction, electrochemical deposition, membrane extraction, and solid-phase extraction [15][16][17]. Solid-phase extraction (SPE) has become a preferred method at enrichment of many metal ions prior to their analysis by FAAS and other tec...

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Section: Resultsmentioning

confidence: 99%

Separation and Preconcentration of Cobalt Using a New Schiff Base Derivative on Amberlite XAD‐7

Çiftçi

2010

CLEAN Soil Air Water

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“…The RSD of the method was < 1.32. A comparison of the characteristic data between some existing reported methods and the proposed method for separation/preconcentration and determination of Ni(II) by FAAS [36][37][38][39][40][41][42][43][44][45][46][47][48] is given in Table 4. As Table 4 shows, the proposed method exhibits a comparable capacity factor, a low detection limit and a wide linear range, as well as being a convenient, safe, simple, and inexpensive method for the determination of trace quantities of Ni(II) in real samples giving satisfactory results.…”

Section: Resultsmentioning

confidence: 99%

Preconcentration of Ni(II) on Silica gel Loaded with New Synthesized Schiff base and Their Determination by FAAS

Masoudinia¹,

Nateghi²,

Khosousi³

2014

Orient J Chem

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Flame atomic absorption spectrometry (FAAS), is often used for the determination of trace metal ions. The direct determination of metal ions at trace level is limited due to their low concentration and matrix interferences. Therefore, a preconcentration or separation step is frequently necessary to improve the detection limit and sensitivity. For this purpose, several separation and preconcentration procedures such as solvent extraction, co- ORIENTAL JOURNAL OF CHEMISTRY ABSTRACTA preconcentration method was developed for the determination of trace amounts of Ni(II) by atomic absorption spectrometry. The method is based on the retention of the metal cations by modified silica gel adsorbent. The adsorbed metals were then eluted with nitric acid and the Ni(II) was determined by flame atomic absorption spectrometry. The optimal extraction and elution conditions were studied. The effects of diverse ions on the preconcentration were also investigated. A preconcentration factor of 100 can easily be achieved. Calibration graph was obtained and the detection limit of the method for Ni(II) was 1.3 ng mL -1 . The relative standard deviation (RSD) of 0.66-1.32 % was obtained. The method was applied successfully to the determination of Ni(II) in water samples.

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“…Determination of nickel is performed by several techniques such as x-ray absorption spectroscopy [15], flame and electro thermal atomic absorption spectrometry [16][17][18][19][20], atomic emission spectrometry [21], spectrophotometry [22,23] and fluorescence spectroscopy [24]. Among the methods, spectrophotometric methods offer many appealing characteristics including: simple instrumentation, rapid response times and easy operation.…”

Section: Introductionmentioning

confidence: 99%

An Optical Chemical Sensor For Monitoring Of Nickel In Waters And Hydrogen Peroxide Samples

Babaee

Pakdehi

Nabavi

2016

JNDC

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Enrichment and determination of Ni2+ ions in water samples with a diamino-4-(4-nitro-phenylazo)-1H-pyrazole (PDANP) by using FAAS

Cited by 32 publications

References 19 publications

Separation and Preconcentration of Cobalt Using a New Schiff Base Derivative on Amberlite XAD‐7

Separation and Preconcentration of Cobalt Using a New Schiff Base Derivative on Amberlite XAD‐7

Preconcentration of Ni(II) on Silica gel Loaded with New Synthesized Schiff base and Their Determination by FAAS

An Optical Chemical Sensor For Monitoring Of Nickel In Waters And Hydrogen Peroxide Samples

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