Search
Now showing items 1-10 of 16
Detection and quantification of acidic drug residues in South African surface water using gas chromatography-mass spectrometry
(Chemosphere, 2016-10-26)
A method was optimized for derivation, separation, detection and quantification of salicylic acid, acetylsalicylic acid, nalidixic acid, ibuprofen, phenacetin, naproxen, ketoprofen, meclofenamic acid and diclofenac in ...
Assessment of nonsteroidal anti-inflammatory drugs by ultrasonic-assisted extraction and GC-MS in Mgeni and Msunduzi river sediments, KwaZulu-Natal, South Africa
(Environ Sci Pollut Res, 2017-06-27)
The occurrence of eight pharmaceuticals was monitored during four seasons (spring, summer, autumn, and winter) along a 250-km stretch of the Msunduzi and Mgeni rivers in KwaZulu-Natal, South Africa. This paper describes ...
Target, Suspect and Non-Target Screening of Silylated Derivatives of Polar Compounds Based on Single Ion Monitoring GC-MS
(International journal of environmental research and public health, 2019)
Abstract: There is growing interest in determining the unidentified peaks within some sample spectra besides the analyses of interest. Availability of reference standards and hyphenated instruments has been a key and ...
Spectrophotometric Determination of Low Levels of the Orthophosphate Anion as Molybdenum Blue using Sodium Thiosulphate Reducing agent
(Oriental Journal of Chemistry, 2020)
ABSTRACT
A simple spectrophotometric method for the determination of low levels of the orthophosphate (PO43-) in environmental water systems is reported. The method is based the formation of the phosphomolybdate from the ...
Preparation and Identification of Reduced Phosphomolybdate Via, Molybdenum Blue Reaction
(Oriental Journal of Chemistry, 2020)
Sodium thiosulphate reduced phosphomolybdate (STRP) was prepared based on the condensation of phosphate and molybdate ions in aqueous acid medium to form phosphomolybdic acid (PMA) followed by its reduction to molybdenum ...
Occurrence and significance of polychlorinated biphenylsin water, sediment pore water and surface sedimentsof Umgeni River, KwaZulu-Natal, South Africa
(Environ Monit Assess, 2015-08-05)
The Umgeni River is one of the main sourcesof water in KwaZulu-Natal, South Africa; however;there is currently a lack of information on the presenceand distribution of polychlorinated biphenyls (PCBs) inits sediment, ...
Quantitative analyses of selected polychlorinated biphenyl (PCB) congeners in water, soil, and sediment during winter and spring seasons from Msunduzi River, South Africa
(Environ Monit Assess, 2018-09-20)
The lack of information and the need for knowledge on the organic pollutants within the area of
KwaZulu-Natal together with the global problem of water supply have prompted our investigation into the analyses of eight ...
Detection and Quantification of Emerging Organic Pollutants in the Umgeni and Msunduzi Rivers
(Water Research Commission, 2016-12)
BACKGROUND
Globally, there is a strong interest and extensive research activities on emerging organic contaminants and there is an increasing need to monitor these compounds in order to understand the risks posed to human ...
Evaluation of persistent organochlorine pesticides and polychlorinated biphenyls in Umgeni River bank soil, KwaZulu- Natal, South Africa
(Water SA, 2019-09-23)
This study investigated the presence and distribution of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) in soil collected along the banks of the Umgeni River, one of the largest rivers in the province ...
Evaluation of organochlorinated pesticide (OCP) residues in soil, sediment and water from the Msunduzi River in South Africa
(Environmental Earth Sciences, 2019-03-06)
Organochlorinated pesticide (OCP) concentrations were evaluated in sediment, soil and surface water of the Msunduzi River as well as the influent, effluent and bio solids from the Darville wastewater treatment plant (WWTP) ...