
Title: Dr. Jalal Nasser Jeber Position: Research Scientist | Chromatography and Mass Spectrometry Expert
Biography:
Dr. Jalal Nasser Jeber is a distinguished researcher in the field of Analytical Chemistry, specializing in Chromatography and Mass Spectrometry. With a solid foundation laid during their PhD studies at the College of Science, University of Baghdad, [Your Full Name] has emerged as a prominent figure in the world of analytical sciences.
Research Interests:
Chromatography Mass Spectrometry Liquid Chromatography High-Performance Liquid Chromatography (HPLC) Extraction Techniques Analytical Chemistry Instrumentation Spectrometry Analytical Method Development Chromatographic Method Development High-Pressure Liquid Chromatography (HPLC) Tandem Mass Spectrometry (MS/MS) Instrumental Analysis Electrospray Ionization (ESI) Drug Analysis Pharmaceutical Analysis Analytical Biochemistry Solvent Extraction Bioanalytical Chemistry Time-Of-Flight Mass Spectrometry (TOF-MS) Bioanalytical Mass Spectrometry TOF Analysis Bioanalytical Method Development Spectrophotometry IR Analysis Elemental Analysis Analytical Toxicology Bioanalysis Analytical Research and Development Biological Mass Spectrometry Analytical Instruments Education:
Ph.D. in [Your Field of Study], College of Science, University of Baghdad Dr. Jalal Nasser Jeber has made substantial contributions to the advancement of analytical sciences, particularly in the development of novel chromatographic and mass spectrometric methodologies. Their expertise extends across various analytical techniques, including HPLC, MS/MS, TOF-MS, and IR analysis, with a focus on applications in drug analysis, pharmaceuticals, bioanalytical chemistry, and analytical toxicology.
With a keen interest in analytical method development, Dr. Jalal Nasser Jeber has successfully pioneered new approaches to enhance the precision, sensitivity, and efficiency of analytical techniques. Their research has implications for a wide range of industries, from pharmaceuticals to environmental monitoring.
Having published extensively in reputable scientific journals, Dr. Jalal Nasser Jeber is recognized not only for their research acumen but also for their commitment to nurturing the next generation of analytical scientists. They actively engage in academic and professional communities, participating in conferences and workshops to share their knowledge and foster collaborations.
Dr. Jalal Nasser Jeber's tireless dedication to advancing the frontiers of analytical chemistry has positioned them as a leader in the field, contributing significantly to the development of innovative analytical methodologies and instrumentation.
Associate professor Dr. Jalal N. Jeber
ChromatographyMass SpectrometryLiquid ChromatographyHigh-Performance Liquid ChromatographyExtractionAnalytical Chemistry InstrumentationSpectrometryAnalytical Method DevelopmentChromatographic Method DevelopmentHigh Pressure Liquid ChromatographyTandem Mass SpectrometryInstrumental AnalysisESIDrug AnalysisPharmaceutical AnalysisAnalytical BiochemistrySolvent ExtractionBioanalytical ChemistryTime-Of-Flight Mass SpectrometryBioanalytical Mass SpectrometryTOFBioanalytical Method DevelopmentSpectrophotometryIR AnalysisElemental AnalysisAnalytical ToxicologyBioanalysisAnalytical Research and DevelopmentBiological Mass SpectrometryAnalytical Instruments
The main objective of this paper is to develop and validate flow injection method, a precise, accurate, simple, economic, low cost and specific turbidimetric method for the quantitative determination of mebeverine hydrochloride (MbH) in pharmaceutical preparations. A homemade NAG Dual & Solo (0-180º) analyser which contains two identical detections units (cell 1 and 2) was applied for turbidity measurements. The developed method was optimized for different chemical and physical parameters such as perception reagent concentrations, aqueous salts solutions, flow rate, the intensity of the sources light, sample volume, mixing coil and purge time. The correlation coefficients (r) of the developed method were 0.9980 and 0.9986 for cell
... Show MoreAfter baking the flour, azodicarbonamide, an approved food additive, can be converted into carcinogenic semicarbazide hydrochloride (SEM) and biurea in flour products. Thus, determine SEM in commercial bread products is become mandatory and need to be performed. Therefore, two accurate, precision, simple and economics colorimetric methods have been developed for the visual detection and quantitative determination of SEM in commercial flour products. The 1st method is based on the formation of a blue-coloured product with λmax at 690 nm as a result of a reaction between the SEM and potassium ferrocyanide in an acidic medium (pH 6.0). In the 2nd method, a brownish-green colored product is formed due to the reaction between the SEM and phosph
... Show MoreThis assay rapidly detects chlorpromazine hydrochloride using its ability to reduce gold ions to form nanoparticles. Its low cost, resilience to interferences and short analysis time could facilitate environmental monitoring and biomedical analysis.
The aim of the current study was to develop a nanostructured double-layer for hydrophobic molecules delivery system. The developed double-layer consisted of polyethylene glycol-based polymeric (PEG) followed by gelatin sub coating of the core hydrophobic molecules containing sodium citrate. The polymeric composition ratio of PEG and the amount of the sub coating gelatin were optimized using the two-level fractional method. The nanoparticles were characterized using AFM and FT-IR techniques. The size of these nano capsules was in the range of 39-76 nm depending on drug loading concentration. The drug was effectively loaded into PEG-Gelatin nanoparticles (≈47%). The hydrophobic molecules-release characteristics in terms of controlled-releas
... Show MoreBackground: Tap waters play an important role in fulfilling the people needs for drinking and domestic purposes. Contaminate the tap water with different pollutants has become an issue of great concern for 90% of people who are depended on the tap water as the main source of drinking. Pollutants can make their way easily into the delivering pipes which suffer from the leaking resulting in decreasing the quality of water. Objective: Therefore, assess the water quality for drinking purpose by calculating the water quality index is an important tool to ascertain whether the water is suitable for human consumption or not. Methods: In the present work, the water quality of the Al-Salam, western region of Baghdad city, Iraq was investigated for 7
... Show Morenew, simple and fast solid-phase extraction method for separation and preconcentration of trace theophylline in aqueous solutions was developed using magnetite nanoparticles (MIONPs) coated with aluminium oxide (AMIONPs) and modified with palmitate (P) as an extractor (P@AMIONPs). It has shown that the developed method has a fast absorbent rate of the theophylline at room temperature. The parameters that affect the absorbent of theophylline in the aqueous solutions have been investigated such as the amount of magnetite nanoparticle, pH, standing time and the volume, concentration of desorption solution. The linear range, limit of quantification (LOQ) and limit of detection (LOD) for the determination of theophylline were 0.05-2.450 μg mL-
... Show MoreContinuous turbidimetric analysis (CTA) for a distinctive analytical application by employing a homemade analyser (NAG Dual & Solo 0-180°) which contained two consecutive detection zones (measuring cells 1 & 2) is described. The analyser works based on light-emitting diodes as a light source and a set of solar cells as a light detector for turbidity measurements without needing further fibres or lenses. Formation of a turbid precipitated product with yellow colour due to the reaction between the warfarin and the precipitation reagent (Potassium dichromate) is what the developed method is based on. The CTA method was applied to determine the warfarin in pure form and pharmaceu
In this paper, turbidimetric and reversed-phase ultra-fast liquid chromatography (UFLC) methods were described for the quantitative determination of ephedrine hydrochloride in pharmaceutical injections form. The first method is based on measuring the turbidimetric values for the formed yellowish white precipitate in suspension status in order to determine the ephedrine hydrochloride concentration. The suspended substance is formed as a result of the reaction of ephedrine hydrochloride with phosphomolybdic acid which was used as a reagent. The physical and chemical characteristics of the complex were investigated. The calibration graphs of ephedrine were established by turbidity method. While the second method (UFLC) was conducted using the
... Show MoreA simple, low cost and rapid flow injection turbidimetric method was developed and validated for mebeverine hydrochloride (MBH) determination in pharmaceutical preparations. The developed method is based on forming of a white, turbid ion-pair product as a result of a reaction between the MBH and sodium persulfate in a closed flow injection system where the sodium persulfate is used as precipitation reagent. The turbidity of the formed complex was measured at the detection angle of 180° (attenuated detection) using NAG dual&Solo (0-180°) detector which contained dual detections zones (i.e., measuring cells 1 & 2). The increase in the turbidity of the complex was directly proportional to the increase of the MBH concentration
... Show MoreAn optoelectronic flow-through detector for active ingredients determination in pharmaceutical formulations is explained. Two consecutive compact photodetector’s devices operating according to light-emitting diodes-solar cells concept where the LEDs acting as a light source and solar cells for measuring the attenuated light of the incident light at 180˚ have been developed. The turbidimetric detector, fabricated of ten light-emitting diodes and five solar cells only, integrated with a glass flow cell has been easily adapted in flow injection analysis manifold system. For active ingredients determination, the developed detector was successfully utilized for the development and validation of an analytical method for warfarin determination
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