Speciation and separation of Cr VI and Cr III using coprecipitation with Ni2 2 Nitroso 1 naphthol 4 sulfonic acid and determination by FAAS in water and food samples
Yazarlar (3)
Doç. Dr. Özgür Doğan ULUÖZLÜ
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Prof. Dr. Mustafa TÜZEN
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Erciyes Üniversitesi, Türkiye
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale |
| Dergi Adı | Food and Chemical Toxicology |
| Dergi ISSN | 0278-6915 Wos Dergi Scopus Dergi |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Dergi Grubu | Q4 |
| Makale Dili | İngilizce |
| Basım Tarihi | 10-2009 |
| Cilt No | 47 |
| Sayı | 10 |
| Sayfalar | 2601 / 2605 |
| DOI Numarası | 10.1016/j.fct.2009.07.020 |
| Makale Linki | http://linkinghub.elsevier.com/retrieve/pii/S0278691509003470 |
| Özet |
| A speciation procedure for chromium(III) and chromium(VI) in the water and food samples has been established in the presented work. The procedure presented based on quantitative recoveries of Cr(III)>95% using coprecipitation of Ni(2+)/2-Nitroso-1-naphthol-4-sulfonic acid. The total chromium was measured after reduction of Cr(VI) by concentrated H(2)SO(4) and ethanol. The Cr(VI) was calculated as the difference between the total Cr content and the Cr(III) contents. The analytical variables, pH, amounts of precipitate, sample volume for optimum recoveries of Cr(III) were investigated. The influences of the some alkaline and earth alkaline ions and some transition metals on the recoveries of analyte ions were also investigated. The preconcentration factor was 50. The detection limit (3 sigma) of the reagent blank for chromium(III) was 1.33 microg L(-1). The relative standard deviations for determinations were found to be <7%, and % of relative error was calculated <6%. The method was validated by certified reference materials of tea (GBW 07605) and bush branches and leaves (GBW 0703). The procedure was successfully applied to the speciation of chromium in natural water and food samples (fish, white cheese, cow's meat, black tea, boiled wheat). |
| Anahtar Kelimeler |
| Chromium speciation | Coprecipitation | Ni2+/2-Nitroso-1-naphthol-4-sulfonic acid | FAAS | Food samples |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| WoS | 55 |
| Google Scholar | 71 |