Spectrophotometric analysis of uranium concentration at trace level in PuO2 product

2022 ◽  
Author(s):  
Chandan Mukhopadhyay ◽  
K. Dhamodharan ◽  
Pradeep Kumar Sharma ◽  
V. Rekha ◽  
K. Ananthasivan ◽  
...  
Keyword(s):  
Uranium Concentration ◽  
Spectrophotometric Analysis ◽  
Trace Level

scholarly journals Spectrophotometric Determination of Copper as Copper Piperazine

2013 ◽  
Vol 13 ◽  
pp. 205-209
Author(s):  
Ch. Kavitha ◽  
M. Sarath Babu ◽  
K. Saraswathi
Keyword(s):  
Ammonium Acetate ◽  
Cost Effective ◽  
Spectrophotometric Analysis ◽  
Trace Level ◽  
Uv Visible ◽  
Acetate Medium ◽  
Almost All ◽  
Determination Of Copper ◽  
Level Analysis

Spectrophotometric method for determination of Cu(II) in the trace quantities was developed by using piperazine as ligand in ammonium acetate medium. The Procedure developed was applied for the estimation Cu(II) in microgram quantities in the samples of alloys and the method was found to be simple, rapid and comparable to routine analytical methods for trace level analysis of metal ions in environmental samples in any laboratory where sophisticated and expensive instruments are not available. UV visible spectrophotometer is cost effective and available in almost all laboratories. The complexes of piperazine in aqueous solutions are not reported so far and this is the first attempt in this area of spectrophotometric analysis.

Analysis of Trace Level Perchlorate in Drinking Water and Ground Water by Electrospray Mass Spectrometry

1998 ◽  
Author(s):  
Rebecca A. Clewell ◽  
Wayne T. Brashear ◽  
David T. Tsui ◽  
Sanwat Chaudhuri ◽  
Rachel S. Cassady
Keyword(s):  
Mass Spectrometry ◽  
Drinking Water ◽  
Ground Water ◽  
Electrospray Mass Spectrometry ◽  
Trace Level

SPECTROPHOTOMETRIC ANALYSIS AND FRACTURE RESISTANCE OF SUPER AND ULTRA TRANSLUCENCY ZIRCONIA VERSUS LITHIUM DISILICAET GLASS CERAMICS

2017 ◽  
Vol 63 (2) ◽  
pp. 1647-1652
Author(s):  
Sara Telyani ◽  
Esam Osman ◽  
Mohammad Rayyan ◽  
Ehab Farghaly ◽  
Ghada Hamza
Keyword(s):  
Fracture Resistance ◽  
Glass Ceramics ◽  
Spectrophotometric Analysis

SPATIO-TEMPORAL DISTRIBUTION OF URANIUM CONCENTRATION IN SHALLOW AQUIFERS OF ARAVALLI TERRANE (NORTH GUJARAT), INDIA

2019 ◽  
Author(s):  
Rudra Mohan Pradhan ◽  
◽  
Karrie A. Weber ◽  
Karrie A. Weber ◽  
Daniel Snow ◽  
...  
Keyword(s):  
Uranium Concentration ◽  
Temporal Distribution ◽  
Shallow Aquifers ◽  
Spatio Temporal ◽  
North Gujarat

scholarly journals Quality assessment of brands of erythromycin stearate tablets marketed in Abuja, Nigeria

2020 ◽  
Vol 17 (1) ◽  
pp. 29-33
Author(s):  
Kudirat B. Mustapha ◽  
Marlene D. Ekpo ◽  
Isa H. Galadima ◽  
Rukaiyatu A. Kirim ◽  
Olubukola A. Odeniran ◽  
...  
Keyword(s):  
Quality Assessment ◽  
Quality Evaluation ◽  
Hardness Test ◽  
Spectrophotometric Analysis ◽  
Assessment Study ◽  
Uniformity Test ◽  
Quality Assessment Study ◽  
Percentage Weight ◽  
Pharmaceutical Industries ◽  
Erythromycin Stearate

Erythromycin is one of the most frequently prescribed antibiotics. With the increasing number of pharmaceutical industries, the possibility of  purchasing a substandard product is on the high side. This makes it necessary to subject various commercially produced brands of erythromycin to quality evaluation in order to ascertain the quality. In this quality assessment study, six (6) brands of erythromycin tablets were subjected to physicochemical assay using standard physical methods and UV/VIS spectrophotometric analysis at 480 nm. The calibration curve for reference erythromycin was linear over a concentration range of 10-100 μg/ml with a correlation coefficient (R2) of 0.999. All the brands had standard deviation of weight greater than ±5 for the weight uniformity test. 66.67% of the brands passed the test for content of active ingredient. 83.33% of the brands examined passed the hardness test. All the brands failed the friability test because the percentage weight loss are greater than 1% as specified in the official book. Keywords: Erythromycin stearate; Tablets; Brands; Pharmaceutical Industries

scholarly journals UV SPECTROPHOTOMETRIC ANALYSIS AND VALIDATION OF OSELTAMIVIRPHOSPHATE IN PURE AND PHARMACEUTICAL FORMULATION

2020 ◽  
pp. 111-114 ◽  
Author(s):  
SACHIN A. YANJANE ◽  
SHRISHAIL M. GHURGHURE ◽  
VINOD K. MATOLE
Keyword(s):  
Spectrophotometric Method ◽  
Spectrophotometric Analysis ◽  
Pharmaceutical Formulation ◽  
Ich Guidelines ◽  
Highly Sensitive ◽  
Double Beam ◽  
Recovery Study ◽  
Uv Visible ◽  
Oseltamivir Phosphate ◽  
Simple Economic

Objective: A new, simple, economical, precise, sensitive, linear, accurate, rapid UV spectrophotometric method has been developed for the estimation of Oseltamivir Phosphate in pure form and pharmaceutical formulation. Methods: This UV method was developed using Methanol as a solvent. In the present method, the wavelength selected for analysis was 218 nm. UV-Visible double beam spectrophotometer (Systronic 2201) was used to carry out spectral analysis. The ICH guidelines were used to validate the method. Results: The method was validated for linearity, range, accuracy, precision, robustness, LOD and LOQ. Linearity was found in the range of 10-50µg/ml. Accuracy was performed by using a recovery study. The amount of drug recovered was found to be in the range of 99.01-100.1%. The % RSD value was found to be less than 2. Conclusion: The developed UV spectrophotometric method was found to be simple, economic, sensitive, easy, accurate, linear, specific and highly sensitive and can be used for routine estimation of Oseltamivir Phosphate.

Plasma thiol/disulphide homeostasis changes in patients with restless legs syndrome

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ertan Kucuksayan ◽  
Serkan Ozben ◽  
Selma Topaloglu Tuac ◽  
Mesrure Koseoglu ◽  
Ozcan Erel ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Restless Legs Syndrome ◽  
Rating Scales ◽  
Spectrophotometric Analysis ◽  
Healthy Controls ◽  
Restless Legs ◽  
Severity Rating ◽  
Total Thiol ◽  
Disease Rating ◽  
Positive Correlations

Abstract Objectives Restless legs syndrome (RLS) is a common neurological condition. Oxidative stress plays an important role in its pathogenesis. Thiol-disulphide homeostasis (TDH) is a new biomarker of oxidative stress. We studied plasma TDH to determine whether TDH could be used as a new biomarker for RLS and evaluated correlations between TDH and various disease severity rating scales. Methods A total of 25 RLS patients and 25 healthy controls were included into the study. TDH status was determined using an automated spectrophotometric analysis method and correlations were analyzed between the TDH status and various disease rating scales in the RLS patients. Results Plasma total (401 ± 27 μmol/L) and native thiol (354 ± 30 μmol/L) levels were significantly lower, but disulphide level (24 ± 6 μmol/L) was significantly (<0.0001) higher in the RLS patients compared to the controls (455 ± 36, 424 ± 37, 15 ± 5 μmol/L, respectively). The disulphide/native thiol and disulphide/total thiol ratios increased, in contrast, native thiol/total thiol ratio decreased significantly in the RLS patients compared to the healthy controls (<0.0001). The disulphide levels correlated positively with age and various rating scores of the RLS patients. International Restless Legs Syndrome Study Group (IRLSSG) rating score and age correlated negatively with the total and native thiol levels. Conclusions Our findings indicate increased oxidative stress in the RLS patients reflected by decreased native and total thiol, and increased disulphide levels and positive correlations between the disulphide levels and various rating scores. We suggest dynamic TDH status to be used as a novel biomarker for the diagnosis and follow-up of the RLS patients.

Sign in / Sign up

Export Citation Format

Share Document