Nomngongo, Philiswa N., Catherine Ngila, J., Msagati, Titus A.M., Moodley, Brenda (2013) Preconcentration of trace multi-elements in water samples using Dowex 50W-x8 and Chelex-100 resins prior to their determination using inductively coupled plasma atomic emission spectrometry (ICP-OES). Physics and Chemistry of the Earth, Parts A/B/C, 66. 83-88 doi:10.1016/j.pce.2013.08.007

See Also

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	Nomngongo, Philiswa N., Ngila, J. Catherine, Kamau, Joseph N., Msagati, Titus A.M., Moodley, Brenda (2013) Preconcentration of molybdenum, antimony and vanadium in gasolsine samples using Dowex 1-x8 resin and their determination with inductively coupled plasma–optical emission spectrometry. Talanta, 110. 153-159 doi:10.1016/j.talanta.2013.02.032
	Nomngongo, Philiswa N., Catherine Ngila, J., Kamau, Joseph N., Msagati, Titus A.M., Marjanovic, Ljiljana, Moodley, Brenda (2013) Pre-concentration of trace elements in short chain alcohols using different commercial cation exchange resins prior to inductively coupled plasma-optical emission spectrometric detection. Analytica Chimica Acta, 787. 78-86 doi:10.1016/j.aca.2013.05.041
	Nomngongo, Philiswa N., Catherine Ngila, J., Msagati, Titus A.M., Gumbi, Bhekumuzi P., Iwuoha, Emmanuel I. (2012) Determination of selected persistent organic pollutants in wastewater from landfill leachates, using an amperometric biosensor. Physics and Chemistry of the Earth, Parts A/B/C, 50. 252-261 doi:10.1016/j.pce.2012.08.001
	Dimpe, K.M., Ngila, J.C., Mabuba, N., Nomngongo, P.N. (2014) Evaluation of sample preparation methods for the detection of total metal content using inductively coupled plasma optical emission spectrometry (ICP-OES) in wastewater and sludge. Physics and Chemistry of the Earth, Parts A/B/C, 76. 42-48 doi:10.1016/j.pce.2014.11.006
	Nomngongo, Philiswa N., Ngila, J. Catherine (2015) Alumina–titania (Al2O3–TiO2) hollow fiber sorptive microextraction coupled to inductively coupled plasma mass spectrometry for determination of trace elements in diesel and gasoline samples. RSC Advances, 5 (89). 72500-72507 doi:10.1039/c5ra12706h
	Nomngongo, Philiswa N., Ngila, J. Catherine (2015) Multivariate optimization of dual-bed solid phase extraction for preconcentration of Ag, Al, As and Cr in gasoline prior to inductively coupled plasma optical emission spectrometric determination. Fuel, 139. 285-291 doi:10.1016/j.fuel.2014.08.046
	Mketo, Nomvano, Nomngongo, Philiswa N., Ngila, J. Catherine (2015) Development of a novel and green microwave-assisted hydrogen peroxide digestion method for total sulphur quantitative extraction in coal samples prior to inductively coupled plasma-optical emission spectroscopy and ion-chromatography determination. RSC Advances, 5 (49). 38931-38938 doi:10.1039/c5ra03040d
	Bahramifar, Nader, Yamini, Yadollah (2005) On-line preconcentration of some rare earth elements in water samples using C18-cartridge modified with l-(2-pyridylazo) 2-naphtol (PAN) prior to simultaneous determination by inductively coupled plasma optical emission spectrometry (ICP–OES). Analytica Chimica Acta, 540 (2). 325-332 doi:10.1016/j.aca.2005.03.058
	Nomngongo, Philiswa N., Ngila, J. Catherine (2014) Determination of trace Cd, Cu, Fe, Pb and Zn in diesel and gasoline by inductively coupled plasma mass spectrometry after sample clean up with hollow fiber solid phase microextraction system. Spectrochimica Acta Part B: Atomic Spectroscopy, 98. 54-59 doi:10.1016/j.sab.2014.06.001
	Matong, Joseph M., Nyaba, Luthando, Nomngongo, Philiswa N. (2016) Fractionation of trace elements in agricultural soils using ultrasound assisted sequential extraction prior to inductively coupled plasma mass spectrometric determination. Chemosphere, 154. 249-257 doi:10.1016/j.chemosphere.2016.03.123
	Mwangi, Isaac W., Catherine Ngila, J., Ndungu, Patrick, Msagati, T. (2014) Preconcentration and spectrophotometric determination of polyDADMAC in treated water by in situ co-precipitation with naphthalene. Physics and Chemistry of the Earth, Parts A/B/C, 72. 54-60 doi:10.1016/j.pce.2014.07.001