TUTDoR

Okonkwo, J. O.

Showing items 1 - 14 of 14.

Add to Quick Collection   All 14 Results

  • First
  • Previous
  • 1
  • Next
  • Last
Sort:
 Add All Items to Quick Collection
Date: 2021/05/01
Language: en
Type: Text
Identifier: tut:6753
Description: Maize tassel (MT), an agricultural waste material has been used for the removal of Pb from borehole water contaminated with mine wastewater2. Furthermore, it has been shown that maize tassel contains ... More
Full Text: Full Text
Date: 2020/08/20
Language: en
Type: Text
Identifier: tut:5379
Description: Organophosphate esters (OPEs) are esters of phosphoric acid that are increasingly used as plasticizers and by the flame-retardants industries as replacement for the regulated polybrominated diphenyl e ... More
Full Text: Full Text
Date: 2019/10/08
Language: en
Type: Text
Identifier: tut:6751
Description: This study report the presence of polybrominated biphenyls (PBBs), polybrominated diphenyl ethers (PBDEs) and novel brominated flameretardants (NBFRs) in muscle tissues of Labeo capensis (mudfish), La ... More
Full Text: Full Text
Date: 2017/10/04
Language: en
Type: Text
Identifier: tut:6742
Description: Alkylphenols (APs) are ultimate breakdown products of alkylphenol polyethoxylate (APEs) that are used in cleaning and industrial processes. The most commonly used APEs in the market are the nonylpheno ... More
Full Text: Full Text
Date: 2016/07/08
Language: en
Type: Text
Identifier: tut:6745
Description: High environmental concentrations for alkylphenol ethoxylates (APEs) and brominated flame retardants (BFRs) have been observed near cities than in rural environment. This is due, in part, to sewage sy ... More
Full Text: Full Text
Date: 2015/07/01
Language: en
Type: Text
Identifier: tut:2900
Description: Generally, a major route of alkylphenol ethoxylates (APEs) and brominated flame retardants (BFRs) to enter the environment is via the wastewater treatment works (WWTW) facilities. Consequently, the lev ... More
Full Text: Full Text
Date: 2015/03/31
Language: en
Type: Text
Identifier: tut:6750
Description: In this study, the concentration of alkylphenol ethoxylates (APEs) and brominated flame retardants (BFRs) were determined in fish samples, Labeo umbratus and Carp, collected from the Vaal River in Sou ... More
Full Text: Full Text
Date: 2015/03/20
Language: en
Type: Text
Identifier: tut:3218
Description: Alkylphenol ethoxylates (APEs) and brominated flame retardants (BFRs) are known to be bio-accumulative, persistent, and endocrine disruptors and can cause adverse health effects in animals and humans. ... More
Full Text: Full Text
Date: 2014/05/25-29
Language: en
Type: Text
Identifier: tut:6752
Description: An improved derivatization protocol for the simultaneous determination of alkylphenol ethoxylates and brominated flame retardants with heptafluorobutyric anhydride under triethylamine amine base was i ... More
Full Text: Full Text
Date: 2013/04/24
Language: en
Type: Text
Identifier: tut:6741
Description: The presence of phthalate esters (PAEs) in the environment is not desirable and therefore, needs to be monitored. This study reports the first data on the concentration levels of PAEs in water and sed ... More
Full Text: Full Text
Date: 2012/07/02
Language: en
Type: Text
Identifier: tut:6756
Description: Abstract A gas chromatography–mass spectrometry (GC–MS) method was investigated for the simultaneous analysis of two types of endocrine disrupting compounds (EDCs), i.e., alkylphenol ethoxylates and b ... More
Date: 2012/01/01
Language: en
Type: Text
Identifier: tut:6754
Description: A number of recent studies have indicated the widespread occurrence of several organic compounds i n wastewater and sewage sludge1-6. Among these compounds, alkyl phenol ethoxylates (APEs) and bromina ... More
Full Text: Full Text
Date: 2009-04-09
Type: Text
Identifier: tut:1577
Description: Surface water and sediment samples collected from Jukskei River in South Africa, were subjected to different extraction techniques, liquid–liquid (LLE), solidphase extraction (SPE), activated carbon e ... More
Full Text: Full Text
Date: 2007-07-12
Type: Text
Identifier: tut:1574
Description: Currently, South Africa is designing a strategy for surface water protection involving organic contaminants such as dichlorodiphenyltrichloroethane (DDT), which is currently used for malaria control i ... More
Full Text: Full Text
  • First
  • Previous
  • 1
  • Next
  • Last