Chromium Isotopes Detection in their Ores with Minimal Errors
Journal Title: Annals of Advances in Chemistry - Year 2018, Vol 2, Issue 1
Abstract
The industrial production and use of chromium have grown considerably during the past five decades. Abundances of the chromium isotopes in terrestrial samples are identical to 0.01%. Among the dominant species of chromium, the trivalent form widely occurs in nature in chromite ores which is extremely immobilized especially in water bodies. Samples were mixtures of separated chromium isotopes and the calibration was made with the same species as those used in the measurements. The method had simplified the conversion of the ores to chromyl fluoride since the element could be readily separated as lead chromate from the leaching of chromite-sodium peroxide fusions. Isotope assay of chromyl fluoride under certain conditions was measured and the measurements of chromium isotopic anomalies ratios and isotope abundance of the chromite ores have been assessed. These provided sufficient quantitative mass spectrometric data, which were analyzed to calculate the abundance and the mean atomic mass of the questioned isotopes. Based on the high mass spectroscopy stability and the correction factors, the results were of good precision (incl. negligible systematic errors normally associated to inter-laboratory discrepancies) and the Cr isotopes availability (52Cr > 53Cr > 50Cr > 54Cr) was in conjunction with other classical tools such as oxygen isotopes. This paper is important for paleoecological, environmental, archeological, forensic, and nuclear researchers.
Authors and Affiliations
L Aljerf, N AlMasri
Keywords
Related Articles
- EP ID EP538172
- DOI 10.29328/journal.aac.1001013
- Views 85
- Downloads 0
Combinatorial Therapeutic Approaches to DNA/RNA and Benzylpenicillin (Penicillin G), Fluoxetine Hydrochloride (Prozac and Sarafem), Propofol (Diprivan), Acetylsalicylic Acid (ASA) (Aspirin), Naproxen Sodium (Aleve and Naprosyn) and Dextromethamphetamine Nanocapsules with Surface Conjugated DNA/RNA to Targeted Nano Drugs for Enhanced Anti-Cancer Efficacy and Targeted Cancer Therapy Using Nano Drugs
In the current study, combinatorial therapeutic approaches to DNA/RNA of human cancer cells and Benzylpenicillin (Penicillin G), Fluoxetine Hydrochloride (Prozac and Sarafem), Propofol (Diprivan), Acetylsalicylic Acid (A...
Impact of alloimmunization on transfusion-dependent patients
Red blood cell (RBC) alloimmunization can be a life-threatening complication for patients with thalassemia major and sickle cell disease (SCD) who must receive chronic therapeutic transfusions. Chronic transfusions can l...
Agricultural Residues for Future Energy Option in Sudan: An Analysis
Like many tropical countries, Sudan has ample biomass resources that can be efficiently exploited in a manner that is both profitable and sustainable. Fuel-wood farming offers cost-effective and environmentally friendly...
Synthesis and Biological Evaluation of Fluorescein-Tagged 1-Methyl-o-carborane for Boron Neutron Capture Therapy
Fluorescein was conjugated with 1-methyl-o-carborane and the resulting bioconjugate was biologically evaluated through microscopic and flow cytometric studies in pancreatic cancer and squamous cell carcinoma cell lines....
Validation of HPLC-UV method for determination of amoxicillin Trihydrate in capsule
Abbreviations: AOAC: Association of Official Analytical Chemists; CBER: Center for Biologics Evaluation and Research; ECTD: Electronic Common Technical Document; FDA: Food and Drug Authority; HPLC-UV: High Performance Li...