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Spectrophotometric determination of chromium using promethazine hydrochloride : application in various samples
Other Title(s)
التقدير الطيفي للكروم باستعمال كاشف البروميثازين هيدروكلوريد : التطبيق في نماذج مختلفة
Joint Authors
Shaykhu, Najih Hasan
Abd Allah, Hind Ahmad Mahmud
Source
Ibn al-Haitham Journal for Pure and Applied Science
Issue
Vol. 29, Issue 2 (31 Aug. 2016), pp.130-143, 14 p.
Publisher
University of Baghdad College of Education for Pure Science / Ibn al-Haitham
Publication Date
2016-08-31
Country of Publication
Iraq
No. of Pages
14
Main Subjects
Topics
Abstract EN
A rapid, simple and sensitive spectrophotometric method for the determination of trace amounts of chromium (VI) was studied.
The method is based on the reaction of chromium (VI) with promethazine forming a red colored species by chromium in hydrochloric acid medium and exhibits a maximum absorbance at 518 nm.
A plot of absorbance with chromium (VI) gives a straight line indicating that Beer’s law has been obeyed over the range concentration of 0.05-4.0 μg/ml with a molar absorptivity of chromium(VI) 2.04 104 l.mol-1.cm-1 , Sandell’s sensitivity index of 0.0025 μg.cm-2 while the limit of detection (LOD) was found to be 0.0924 μg.ml-1 and a relative standard deviation of (0.63-1.24)%,depending on the concentration level.
The method is developed for the determination of chromium (III) and has been successfully applied to the determination of chromium in various water samples, pharmaceutical preparations, synthetic alloys and standard rock sample of known composition (MRG-1).
American Psychological Association (APA)
Shaykhu, Najih Hasan& Abd Allah, Hind Ahmad Mahmud. 2016. Spectrophotometric determination of chromium using promethazine hydrochloride : application in various samples. Ibn al-Haitham Journal for Pure and Applied Science،Vol. 29, no. 2, pp.130-143.
https://search.emarefa.net/detail/BIM-745901
Modern Language Association (MLA)
Shaykhu, Najih Hasan& Abd Allah, Hind Ahmad Mahmud. Spectrophotometric determination of chromium using promethazine hydrochloride : application in various samples. Ibn al-Haitham Journal for Pure and Applied Science Vol. 29, no. 2 (2016), pp.130-143.
https://search.emarefa.net/detail/BIM-745901
American Medical Association (AMA)
Shaykhu, Najih Hasan& Abd Allah, Hind Ahmad Mahmud. Spectrophotometric determination of chromium using promethazine hydrochloride : application in various samples. Ibn al-Haitham Journal for Pure and Applied Science. 2016. Vol. 29, no. 2, pp.130-143.
https://search.emarefa.net/detail/BIM-745901
Data Type
Journal Articles
Language
English
Notes
Includes appendices : p. 139-142
Record ID
BIM-745901