Document Details

Document Type : Article In Journal 
Document Title :
Part 1. Spectrophotometric determination of trace mercury (II) in dental-unit wastewater and fertilizer samples using the novel reagent 6-hydroxy-3-(2- oxoindolin-3-ylideneamino)-2-thioxo-2H-1,3-thiazin-4(3H)-one and the dual-wavelength β-correction spectrophotometry
استخدام الطول الموجي المزدوج مع طريقة بيتا المعدلة في التقدير الطيفي لأيونات الزئبق بواسطة تفاعل السيانيد مع أحد المركبات العضوية
 
Subject : Environmental Sciences 
Document Language : English 
Abstract : A simple and low cost method was developed and validated for the determination of trace mercury (II) ions in dental-unit wastewater and fertilizer samples. The method was based upon the reaction of mercury (II) ions with the novel reagent 6-hydroxy-3-(2-oxoindolin-3-ylideneamino)-2- thioxo-2H-1,3-thiazin-4(3H)-one, the formed complex shows an absorption maximum at 505nm (λmax) in Britton–Robinson (B–R) buffer (pH 4–6).The corrected absorbance of the formed complex at λmax was obtained employing β-correction spectrophotometric method. Beer’s–Lambert law and Ringbom’s plots of the colored Hg–reagent complex were obeyed in the concentration range of 0.2–2.0 and 0.32–0.96µgmL−1 mercury (II) ions, respectively with a relative standard deviation in the range of 2.1±1.3%. The limits of detection (LOD) and quantification (LOQ) of the procedure were 0.026 and 0.086µgmL−1 Hg2+, respectively. The proposed method was applied for the analysis of mercury (II) in dental-unit wastewater and fertilizer samples. The validation of the method was tested by comparison with the data obtained by the inductively coupled plasma-mass spectrometry (ICP-MS). The statistical treatment of data in terms of Student’s t-tests and variance ratio f-tests has revealed no significance differences. 
ISSN : 0304-3894 
Journal Name : Journal of Hazardous Materials 
Volume : 1 
Issue Number : 178 
Publishing Year : 1431 AH
2010 AD 
Article Type : Article 
Added Date : Tuesday, March 6, 2012 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
A. HamzaHamza, A. InvestigatorDoctorate 
عبدالعزيز باشماخBashammakh, A. S.ResearcherDoctorate 
A. A. Al-SibaaiAl-Sibaai, A. A.ResearcherDoctorate 
H. M. Al-SaidiAl-Saidi, H. M.ResearcherDoctorate 
محمد الشهاويEl-Shahawi, M. S.ResearcherDoctoratemohammad_el_shahawi@yahoo.co.uk

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