title: Hazardous impact of arsenic on tissues of same fish species collected from two ecosystem.
abstract: The purpose of this paper is to develop a database of fish tissues and to evaluate concentration of arsenic (As) in five tissues of fish species collected from Manchar Lake Pakistan and to compare concentration of As in fish tissues of same fish species collected from the Indus River, Pakistan. A sensitive and precise, hydride generation atomic absorption spectrometry (HG AAS) method is presented for the determination of total Arsenic (As). Microwave acid-assisted digestion (MAD) procedure based on the mixture HNO(3)/H(2)O(2) was evaluated. The method was successfully validated against CRM DORM-2 (dogfish muscle). Quantitative As recovery in CRM (DORM-2) was obtained and no statistical differences were found at 95% level by applying the t-test. The limit of detection (LOD) and limit of quantitation (LOQ), for As were established as 0.022 and 0.063 microg g(-1), respectively. The results of this study indicated that As concentration in fish tissues from the Indus River are generally lower than in tissues of fishes from Manchar Lake. Arsenic concentrations in fish tissues of Indus River are although above the respective human health-based concentrations.
authors.affiliation: National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan. aqshah07@yahoo.com
authors.forename: Abdul Qadir
authors.initials: AQ
authors.lastname: Shah
authors.forename: Tasneem Gul
authors.initials: TG
authors.lastname: Kazi
authors.forename: Mohammad Balal
authors.initials: MB
authors.lastname: Arain
authors.forename: Jameel Ahmed
authors.initials: JA
authors.lastname: Baig
authors.forename: Hassan Imran
authors.initials: HI
authors.lastname: Afridi
authors.forename: Ghulam Abbas
authors.initials: GA
authors.lastname: Kandhro
authors.forename: Sumaira
authors.initials: S
authors.lastname: Khan
authors.forename: Mohammad Khan
authors.initials: MK
authors.lastname: Jamali
mesh_terms: D000818:Animals; D001151:Arsenic / Q000032:analysis*; D004284:Dogfish; D017753:Ecosystem; D004782:Environmental Health; D004784:Environmental Monitoring / Q000379:methods*; D005399:Fishes / Q000378:metabolism*; D005618:Fresh Water / Q000032:analysis*; D006801:Humans; D006861:Hydrogen Peroxide; D008872:Microwaves; D018482:Muscle, Skeletal / Q000737:chemistry*; D017942:Nitric Acid; D013054:Spectrophotometry, Atomic / Q000592:standards
chemical_list: D017942:Nitric Acid; D006861:Hydrogen Peroxide; D001151:Arsenic