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assistant professor

Rana Sami Saeed Hamed ALsaffar

Research Interests

bleaching dye

Diazotization and coupling

oxidative coupling

Oxidation and reduction

UV

IR and Visible Spectrophotometry

Gender FEMALE
Place of Work Mosul Technical Institute
Position Department decided
Qualification Ph.D.
Speciality Analytical chemistry
Email rana40523@ntu.edu.iq
Phone 07714024118
Address Al-Ghufran neighborhood, Nineveh, Mosul, Iraq
Dr.Rana Sami Saeed ALsaffar

am a lecturer at the Northern Technical University/Mosul Technical Institute/Department of Chemical and Petroleum Industries Techniques, with the title of Assistant Professor. I have been a departmental rapporteur since 2020 and have served in the department since 2025. I am also a member of
the examination committee, a quality assurance liaison, a member of the department's program accreditation committee, a member of the SIS program for student affairs, and head of the department's scientific committee. I also serve as a member of the subcommittee for research integrity at the Northern Technical University. I have also participated in numerous discussions for master's and doctoral studies.Evaluating dissertations and theses in analytical chemistry.
I teach first- and second-year courses in the following subjects: general chemistry, organic chemistry, crude oil technology, technical language, and industrial petrochemicals.
I have conducted numerous courses, seminars, and workshops in my field and other chemical specialties. I also participate in educational and psychological counseling at seminars, workshops, women's affairs, exhibitions, and conferences. I have six published research papers, three of which areThree of them are Scopus, one is Clarivate, and two are scientific.

Skills

Teaching, administration, holding workshops, courses, exhibitions, research, supervising graduation research, and participating in many scientific committees in the department and the institute. (50%)

Supervision

Saleh Muthanna Abdul Karim,Tariq Muhannad Tariq,Yahya Ali Salem Abdul Rahman Samir Salem
Year: 2025

Academic Degree: Other

Supervisor Type: Supervisor

Supervisor State: Graduated

Student projects include chemical and engineering specializations, both theoretically and practically

working experience

Academic Qualification

Master's degree in Chemistry,PhD in Analytical Chemistry,the title of Assistant Professor
Jun 3, 2025 - Jul 26, 2017

I obtained my Master's and PhD from the University of Mosul / College of Science, Department of Chemistry. As for the title of Assistant Professor, I obtained it from the Northern Technical University.

Working Experience

مقرر قسم [مقرر قسم/استاذ مساعد]
Sep 29, 2020 - Present

تابعة الطلبة من حيث الالتزام و الزي الموحد.
اشغال مكان رئيس القسم في حالة تمتعه بالاجازة.
عضو في اللجنة الامتحانية.
الاجابة على البريد الوارد.
متابعة التزام التدريسيين في حضور محاضراتهم في وقتها.
تقسيم الطلبة على التدريسيين في البحوث التخرج والتطبيقات التربوية .
اقامة الندوات و ورش العمل

Publications

Spectrophotometric Determination of Sulphamerazine Via Diazotization and Coupling with m-Hydroxyaniline
Jun 4, 2022

Journal Pak. J. Anal. Environ. Chem.

DOI http://doi.org/10.21743/pjaec/2022.06.04

Issue 1

Volume 23

A simple and accurate spectrophotometric method has been developed based on diazotization and coupling reactions. The method relied on the diazotization of sulphamerazine (SMEZ) via reaction with HNO2 obtained from the reaction of hydrochloric acid with sodium nitrite. The un-reacted nitrous acid destroyed via a reaction with sulphamic acid. The formed diazotized sulphamerazine (D-SMEZ) was coupled with m-hydroxylaniline to produce yellow azo dye, which gives the highest absorption at 450 nm. The formed azo dye is freely soluble in water and has good stability. The linearity is observed by drawing absorbance of various amounts of sulphamerazine from 0. 5 to 25 μg.mL-1, which exhibits molar absorptivity of 1.4592x105 l.mol.-1cm-1 and Sandell's sensitivity factor 0.001811 μg.cm-2. The low detection limit, low quantitation limit, relative error, and percent relative standard deviation have been estimated, and their values are 0.0022 and 0.0076 μg.mL-1 as well as 0.02 to 0.2%, respectively. The present method has successfully been applied to determine sulphamerazine in trisulphoprim injection (veterinary drug).

A Simple Spectrophotometric Method for the Determination of Famotidine via Reaction with Alizarin Red S
Mar 1, 2022

Journal Chemical Methodologies

DOI DOI:10.22034/chemm.2022.313691.1393

Issue 3

Volume 6

A simple, quick, and sensitive spectrophotometric method was proposed to determine famotidine (FAMT) in its pure form and pharmaceutical preparation (tablet). The method involves the reaction of FAMT with alizarin red S to produce a stable, water-soluble red complex with the maximum absorption signal at 528 nm, Beer's law is followed for standard FAMT solutions in the range of 6.0-80 µg/mL with a negative deviation at concentrations higher than 80 µg/mL. The method is sensitive. The molar absorptivity and Sandell᾽s sensitivity index values are 3.3 × 10 4 l/mol.cm and 0.0109 µg /cm2 respectively. Two approaches were applied to determine the amount of FAMT in its pharmaceutical formulation (famosam tablets), the one depending on a regression equation and the second on the standard addition method. The results were obtained with sufficient precision and accuracy, with negligible effects from excipient interference

Spectrophotometric Determination of p-aminobenzoic acid via Diazotization and Coupling reaction
Oct 31, 2021

Journal Research J. Pharm. and Tech.

DOI DOI: 10.52711/0974-360X.2021.00926

Issue 10

Volume 14

A simple and accurate spectrophotometric method to assay p-aminobenzoic acid (PABA) has been suggested. The method based on the diazotization of PABA via reaction with nitrite ions which liberated in the medium through the reaction of sodium nitrite with hydrochloric acid, then coupling the dizotised-PABA(D-PABA)with 1-naphthylamine -7-sulphonic acid (1-NASA) to form an intense colored pink azo dye ,it is water-soluble , very stable and has a maximum absorbance at 525 nm. The absorbance was increase with the increasing of PABA amounts in the solution, and the linearity from 2.5 to70 µg in 10 ml (0.25to7 µg.ml-1).The molar absorptivity and Sandell ҆s sensitivity values have been calculated they equal to 3.6057x104 L.mol-1 cm -1 and 0.0037993 µg. cm-2 respectively. The two values above demonstrated a good sensitivity of the suggested method. The method has been used in estimated PABA resulted from analysis of folic acid in tablet

Spectrophotometric determination of sulphacetamide sodium via diazotization and coupling reaction
Dec 29, 2020

Journal IOP Conference Series: Materials Science and Engineering

DOI doi:10.1088/1757-899X/928/5/052017

Spectrophotometric Determination of Amoxicillin by Coupling with Diazotized m – Nitroaniline
May 1, 2017

Journal International Journal of Enhanced Research in Science, Technology & Engineering

DOI DOI:10.13140/RG.2.2.35978.82888

Issue 5

Volume 6

A sensitive spectrophotometric method for the assay of micro amount of amoxicillin trihydrate (AmoxT) in aqueous solution has been worked out. The method is based on the coupling of AmoxT with diazotized m– nitroaniline (DmNA) in basic medium. The azo dye formed is water – soluble, stable, and shows maximum absorption at 436 nm, Beer’s law is obeyed over the range (3-30) g.ml-1 with a molar absorptivity of 2.6006104 l.mol-1.cm-1 and Sandell ҆s sensitivity index of 0.0161 µg.cm-2 , a relative error of -1.3 to - 0.1% and a relative standard deviation of ±0.2 to ±1.3% depending on the concentration level. The method has been successfully applied to the determination of AmoxT in its pharmaceutical preparations.

Spectrophotometric Determination of Amoxicillin in Pharmaceutical Preparations
Jul 1, 2015

Journal International Journal of Enhanced Research in Science Technology & Engineering

DOI doi:10.1088/1757-899X/928/5/052017

Issue 6

Volume 4

A simple and sensitive spectrophotometric method was developed for the determination of amoxicillin (Am) in pharmaceutical preparations. The method based on oxidation of amoxicillin with a known excess amount of N-bromosuccinamid (NBS) in an acidic medium and then the residual NBS was determined by bleaching the color of methylene blue dye, then measuring the absorbance of residual dye at 663 nm. The amount of NBS react corr range of 5-50 μg/10 ith good molar absorptivity of 8.3051x104 l. mol-1 .cm-1 and Sandell s sensitivity index of 5.0505 x10-3μg -2 with a relative error of +0.1 to+1.2 and relative standard deviation of 0.27 to 0.72% depending on the concentration. The method has been successfully applied to the determination of Am in its pharmaceutical preparations.

Conferences

Conferences

The fd Chemistry Conference College ol Sriencefilo*rt Univonlty,2nd International Scientific Conference of Al-Ayen University (ISCAU-2020)
Nov 21, 2020 - Dec 21, 2020

DOI doi:10.1088/1757-899X/928/5/052017

Country Iraq

Location iraq

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