Indirect colorimetric estimation of fluoride ion in water and pharmaceutical preparation samples
Other Title(s)
التقدير اللوني غير المباشر لأيون الفلوريد في نماذج من المياه و المستحضرات الصيدلانية
Joint Authors
Ahmad, Nayif Rahman
Umar, Farha Khalaf
Source
Publisher
University of Mosul College of Science
Publication Date
2019-04-30
Country of Publication
Iraq
No. of Pages
6
Main Subjects
Topics
English Abstract
An indirect method for the estimation of fluoride ion has been developed.The method is based on the bleaching action of fluoride ion on the color of Ti (IV)with 2-hydroxy-1-(2-hydroxy-4-sulfo-1-naphthylazo)-3-naphthanic acid (HHSNNA) complex with proportional decrease of absorbance.
Therefore,the decrease in color intensity is proportionalto the concentration of fluoride ion.
Molar absorptivityis 0.1166×104 l.
mol-1.cm-1 atwavelength 685 nm.
Beer's lawis obeyed over the concentration range of 0.2-4 μg/ml.The proposed method is applied successfullyto determine fluoride ion in different real water samples andpharmaceutical preparations (Tablets).
The proposed method is compared favorably with Eriochrome cyanine R – Zirconium method.
Data Type
Conference Papers
Record ID
BIM-894950
American Psychological Association (APA)
Ahmad, Nayif Rahman& Umar, Farha Khalaf. 2019-04-30. Indirect colorimetric estimation of fluoride ion in water and pharmaceutical preparation samples. Growing Chemistry Science and its Application (3 : 2019 : Banghazi, Libya). . Vol. 28, no. 2 (Special issue) (2019), pp.84-89.Mosul Iraq : University of Mosul College of Science.
https://search.emarefa.net/detail/BIM-894950
Modern Language Association (MLA)
Ahmad, Nayif Rahman& Umar, Farha Khalaf. Indirect colorimetric estimation of fluoride ion in water and pharmaceutical preparation samples. . Mosul Iraq : University of Mosul College of Science. 2019-04-30.
https://search.emarefa.net/detail/BIM-894950
American Medical Association (AMA)
Ahmad, Nayif Rahman& Umar, Farha Khalaf. Indirect colorimetric estimation of fluoride ion in water and pharmaceutical preparation samples. . Growing Chemistry Science and its Application (3 : 2019 : Banghazi, Libya).
https://search.emarefa.net/detail/BIM-894950
