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Determination of Some Heavy Metals in Real Samples by FAAS after Preconcentration on 4-Nitro-2-(2-nitro-phenelazo)phenol Modified Activated Carbon

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1TitleTitle of DocumentDetermination of Some Heavy Metals in Real Samples by FAAS after Preconcentration on 4-Nitro-2-(2-nitro-phenelazo)phenol Modified Activated Carbon
2CreatorAuthor's name, affiliation, country AMIR H. M. SARRAFIa*, ELAHE KONOZa* and AZADEH KHANMOHAMMADIb
aDepartment of Chemistry, Faculty of Science, Islamic Azad University,
Central Tehran Branch, Tehran, Iran
a*Department of Chemistry, Faculty of Engineering, Islamic Azad University,
Gachsaran Branch, Gachsaran, Iran
3SubjectDicipline(s) Chemical Science
3SubjectKeywords FAAS, Heavy metals, Solid phase extraction, Activated carbon, 4-Nitro-2-(2-nitro-phenelazo)phenol
4DescriptionAbstract A sensitive and simple method for determination of some heavy metals by flame atomic spectrometry after simultaneous preconcentration of trace heavy metals ions in some cereal and vegetable samples has been reported. The method is based on the adsorption of Cu2+, Fe2+, Zn2+ and Pb2+ on 4-nitro-2-(2-nitro-phenelazo)phenol (NNPP) loaded on activated carbon (AC). The adsorbed metals on activated carbon were eluted using 3 mL 4 mol L-1 nitric acid. The influences of the analytical parameters including pH, flow rate of sample and eluent, type and concentration of eluent, amount of adsorbent and sample volume were investigated. The recoveries of analytes were generally higher than 95%.
5PublishersOrganizing agency, location WWW Publications, India
6Contributor Sponsor(s) -
7DateDate (YYYY-MM-DD) -
8TypeStatus & genre Peer-reviewed Article
8TypeType
9FormateFile Formate PDF
10IdentifierUniform Resource Identifier Click Here
10IdentifierDigital Object Identifier DOI:10.7598/cst2012.168
11SourceJournal/conference title; vol., no. (Year)Chemical Science Transactions, Volume  1 , Number  (3), (2012)
12LanuguageEnglish=en en
13RelationSupp.files
14Coverage -
15CopyrightCopyright and permissions
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