0
Hopp til hovedinnhold

Alfred Antony Christy

Professor

Professor

 
Kontor:
J1060 ( Universitetsveien 25, Kristiansand )

Professor Alfred A. Christy

Field of Expertise: Infrared sSpectroscopy, Mass spectrometry, Analytical Chemistry

Faglige interesser

Undervisning i lærerutdanning

Prosjekter

Naturfagdidaktikk

Fettsyreanalyse i matoljer, CLA fettsyrer i dyr. 

Cis-trans isomeriseringen i fettsyrer. Mekanism 

kjemisk sammenstning av cement

Kvantifisering av kalsium hydroksid i cement blandinger

Vitenskapelige publikasjoner

  • Christy, Alfred Antony (2018). Effect of UV Irradiation on Conjugated Linoleic Acid (9c 11t and 10t 12c). Journal of Chemical and Pharmaceutical Research. ISSN: 0975-7384. 10 (8). s 17 - 24.
  • Prathumsuwan, Thitarat Christy, Alfred Antony Thorstensen, Rein Terje (2018). Hydration Chemistry of Cement Studied by Near Infrared Spectroscopy. Key Engineering Materials. ISSN: 1013-9826. 765 KEMs 309 - 313. doi:10.4028/www.scientific.net/KEM.765.309.
  • Sangpongpittaya, Tanyapa Christy, Alfred Antony Thorstensen, Rein Terje (2018). Quantitative Determination of Calcium Hydroxide by using Near Infrared Spectroscopy. Key Engineering Materials. ISSN: 1013-9826. 765s 300 - 304. doi:10.4028/www.scientific.net/KEM.765.300.
  • Christy, Alfred Antony (2017). An Insight into the Isomerization Chemistry of Methyl Linolenate. Journal of Chemical and Pharmaceutical Research. ISSN: 0975-7384. 9 (9). s 140 - 145.
  • Christy, Alfred Antony (2017). Changes in Unsaturated Fatty Acid Profiles of Some Vegetable Oils during Frying at Medium Frying Temperature. Journal of Chemical and Pharmaceutical Research. ISSN: 0975-7384. 9 (10). s 223 - 226.
  • Angkuratipakorn, Thamonwan Singkhonrat, Jirada Christy, Alfred Antony (2017). Comparison of Water Adsorption Properties of Cellulose and Cellulose Nanocrystals Studied by Near-Infrared Spectroscopy and Gravimetry. Key Engineering Materials. ISSN: 1013-9826. 735 KEMs 235 - 239. doi:10.4028/www.scientific.net/KEM.735.235.
  • Christy, Alfred Antony Rifla, Raziq (2017). Determination Of Kinetic Parameters For The Thermally Induced Isomerization Of Methyl Linolenate. Advances in Natural and Applied Sciences. ISSN: 1995-0772. 11 (8). s 604 - 612.
  • Christy, Alfred Antony Soonthenhut, Siraporn (2017). Water Structure in Proteins in Solid State Studied by Near Infrared Spectroscopy. Key Engineering Materials. ISSN: 1013-9826. 735 KEMs 168 - 172. doi:10.4028/www.scientific.net/KEM.735.168.
  • Christy, Alfred Antony (2016). Heat induced synthesis of linolenic acid isomers-A reference standard. Advances in Natural and Applied Sciences. ISSN: 1995-0772. 10 (17). s 19 - 22.
  • Christy, Alfred Antony Arachchi, Subashini L. (2016). Thermally Induced Cis-Trans Isomerisation in Trilinolein Studied by Infrared Spectroscopy and Gas Chromatography. Advances in Natural and Applied Sciences. ISSN: 1995-0772. 10 (4). s 168 - 176.
  • Christy, Alfred Antony Fernando, N.R. (2016). Thermally induced chemical reactions in castor oil studied by infrared spectroscopy and gas chromatography: Determination of activation energy for the dehydration of ricinoleic acid. Advances in Natural and Applied Sciences. ISSN: 1995-0772. 10 (13). s 146 - 156.
  • Christy, Alfred Antony (2016). Water adsorption properties of free and dehydrated β-cyclodextrin studied by near infrared spectroscopy and gravimetry. Key Engineering Materials. ISSN: 1013-9826. 689s 143 - 147. doi:10.4028/www.scientific.net/KEM.689.143.
  • Christy, Alfred Antony (2015). Adsorption and Dehydration of Water Molecules from α, β and γ Cyclodextrins-A study by TGA analysis and gravimetry. Advanced Materials Research. ISSN: 1022-6680. 1120-1121s 886 - 890. doi:10.4028/www.scientific.net/AMR.1120-1121.886.
  • Christy, Alfred Antony (2015). Insights into the Chemistry of Adsorption of Water Molecules by Cyclodextrins as Studied by Near Infrared Spectroscopy. Advances in Natural and Applied Sciences. ISSN: 1995-0772. 9 (14). s 7 - 13.
  • Christy, Alfred Antony (2015). The Adsorption of Water Molecules on Titanium (iv) Oxide Surface as Studied by Near Infrared Spectroscopy. Advances in Natural and Applied Sciences. ISSN: 1995-0772. 9 (14). s 14 - 19.
  • Christy, Alfred Antony (2014). Adsorption of alcohols onto zinc selenide (ZnSe) crystal surface. Advanced Materials Research. ISSN: 1022-6680. 1035s 277 - 280. doi:10.4028/www.scientific.net/AMR.1035.277.
  • Christy, Alfred Antony (2014). Comparison of water adsorption characteristics of oligo and polysaccharides of α-glucose STUDIED by near infrared spectroscopy. Advanced Materials Research. ISSN: 1022-6680. 1035s 476 - 482. doi:10.4028/www.scientific.net/AMR.1035.476.
  • Christy, Alfred Antony Barth, Tanja Francis, George William (2014). Preliminary photochemical studies of fluorene in various aqueous media. AMERICAN JOURNAL OF SCIENTIFIC AND INDUSTRIAL RESEARCH. ISSN: 2153-649X. 5s 97 - 103. doi:10.5251/ajsir.2014.5.3.97.103.
  • Christy, Alfred Antony (2014). The Nature of Silanol Groups on the Surfaces of Silica, Modified Silica and Some Silica Based Materials. Advanced Materials Research. ISSN: 1022-6680. 998-999s 3 - 10. doi:10.4028/www.scientific.net/AMR.998-999.3.
  • Christy, Alfred Antony (2013). Chemistry of desiccant properties of carbohydrate polymers as studied by near-infrared spectroscopy. Industrial & Engineering Chemistry Research. ISSN: 0888-5885. 52 (12). s 4510 - 4516. doi:10.1021/ie302199k.
  • Christy, Alfred Antony (2013). Near Infrared Spectroscopic Study on the Adsorption of Methanol on Silica Gel. Advanced Materials Research. ISSN: 1022-6680. 650s 150 - 155. doi:doi:10.4028/www.scientific.net/AMR.650.150.
  • Christy, Alfred Antony (2013). The nature of rest silanol groups on the surfaces of silica based solid phase extraction materials. Advanced Materials Research. ISSN: 1022-6680. 650s 66 - 71. doi:doi:10.4028/www.scientific.net/AMR.650.66.
  • Christy, Alfred Antony Nkansah, Marian Asantewah Barth, Tanja (2012). Catalytic oxidation and reduction of polycyclic aromatic hydrocarbons (PAHs) present as mixtures in hydrothermal media. Polycyclic aromatic compounds (Print). ISSN: 1040-6638. 32 (3). s 408 - 422. doi:10.1080/10406638.2012.663451.
  • Christy, Alfred Antony (2012). Effect of Heat on the Adsorption Properties of Silica Gel. International Journal of Engineering and Technology. ISSN: 1793-8236. 4 (4). s 484 - 488.
  • Francis, George William Christy, Alfred Antony Øygarden, Jostein (2012). Pyrolytic formation of pyrolytic aromatic hydrocarbons from sesquiterpenes. Food Chemistry. ISSN: 0308-8146. 135 (3). s 1316 - 1322. doi:10.1016/j.foodchem.2012.06.033.
  • Nkansah, Marian Asantewah Christy, Alfred Antony Barth, Tanja Francis, George William (2012). The use of lightweight expanded clay aggregate (LECA) as sorbent for PAHs removal from water. Journal of Hazardous Materials. ISSN: 0304-3894. 217s 360 - 365. doi:10.1016/j.jhazmat.2012.03.038.
  • Christy, Alfred Antony (2011). Effect of hydrothermal treatment on adsorption properties of silica gel. Industrial & Engineering Chemistry Research. ISSN: 0888-5885. 50 (9). s 5543 - 5549. doi:10.1021/ie1018468.
  • Christy, Alfred Antony (2011). Near infrared spectroscopic characterisation of surface hydroxyl groups on hydrothermally treated silica gel. International Journal of Chemical and Environmental Engineering. ISSN: 2078-0737. 2 (1). s 27 - 32.
  • Christy, Alfred Antony Svendsen, Monica Lian Francis, George William (2011). Pyrolytic formation of polyaromatic hydrocarbons from steroid hormones. Food Chemistry. ISSN: 0308-8146. 124 (4). s 1466 - 1472. doi:10.1016/j.foodchem.2010.07.109.
  • Bobon, Miroslav Christy, Alfred Antony Kluvanec, Daniel Illusova, Ludmilla (2011). State of water molecules and silanol groups in opal minerals: a near infrared spectroscopic study of opals from Slovakia. Physics and chemistry of minerals. ISSN: 0342-1791. 38 (10). s 809 - 818. doi:10.1007/s00269-011-0453-0.
  • Nkansah, Marian Asantewah Christy, Alfred Antony Barth, Tanja (2011). The use of anthracene as a model compound in a comparative study of hydrous pyrolysis methods for industrial waste remediation. Chemosphere. ISSN: 0045-6535. 84 (4). s 403 - 408. doi:10.1016/j.chemosphere.2011.03.061.
  • Christy, Alfred A. (2010). Isomerization of 9c11t/10t12c CLA in Triacylglycerols. Lipids. ISSN: 0024-4201. 45 (8). s 733 - 741. doi:10.1007/s11745-010-3452-x.
  • Christy, Alfred A. (2010). New insights into the surface functionalities and adsorption evolution of water molecules on silica gel surface: A study by second derivative near infrared spectroscopy. Vibrational Spectroscopy. ISSN: 0924-2031. 54 (1). s 42 - 49. doi:10.1016/j.vibspec.2010.06.003.
  • Christy, Alfred A. (2010). The Fate of Phthalates in Surface Waters During Humus Removal by Precipitation. International Journal of Arts and Sciences. ISSN: 1557-718X. 3 (9). s 11 - 22.
  • Christy, Alfred A. (2010). Thermally induced Isomerisation kinetics of the 9c11t and 10t12c Conjugate Linoleic Acids in triacylglycerols as studied by FT-IR spectrometry aided by gas chromatography. The Open Spectroscopy Journal. ISSN: 1874-3838. 4s 41 - 48.
  • Andersen, Dag Olav Christy, Alfred A. (2010). Water Chemistry in the Confluence Zone Downstream a Limestone Treated Lake and an Acid Tributary: Principal Component Analyses Including Warm and Cold Winters and an Episode High in Sea-Salts. International Journal of Arts and Sciences. ISSN: 1557-718X. 3 (9). s 23 - 35.
  • Christy, Alfred A. (2009). Evidence in the formation of conjugated linoleic acids from thermally induced 9t12t linoleic acid: a study by gas chromatography and infrared spectroscopy. Chemistry and Physics of Lipids. ISSN: 0009-3084. 161 (2). s 86 - 94. doi:10.1016/j.chemphyslip.2009.07.002.
  • Christy, Alfred A. Zhanfeng, Xu Harrington, Peter de B. (2009). Thermal degradation and isomerisation kinetics of triolein studied by infrared spectrometry and GC-MS combined with chemometrics. Chemistry and Physics of Lipids. ISSN: 0009-3084. 158 (1). s 22 - 31. doi:10.1016/j.chemphyslip.2008.12.002.
  • Christy, Alfred A. (2009). Thermal induction of 9t12t linoleic acid: A new pathway for the formation of Conjugated Linoleic Acids. International Journal of Engineering and Technology. ISSN: 1793-8236. 1 (4). s 330 - 332.
  • Christy, Alfred A. (2009). Thermally Induced Isomerization of Trilinolein and Trilinoelaidin at 250 A degrees C: Analysis of Products by Gas Chromatography and Infrared Spectroscopy. Lipids. ISSN: 0024-4201. 44 (12). s 1105 - 1112. doi:10.1007/s11745-009-3363-x.
  • Christy, Alfred A. (2008). Quantitative determination of surface area of silica gel particles by near infrared spectroscopy and chemometrics. Colloids and Surfaces A: Physicochemical and Engineering Aspects. ISSN: 0927-7757. 322 (1-3). s 248 - 252. doi:10.1016/j.colsurfa.2008.03.021.
  • Gjessing, Egil T Steiro, Christine Becher, Georg Christy, Alfred A. (2007). Reduced analytical availability of polychlorinated biphenyls (PCB's) in colored surface water. Chemosphere. ISSN: 0045-6535. 66 (4). s 644 - 649. doi:10.1016/j.chemosphere.2006.07.086.
  • Christy, Alfred A. (2006). Infrared Spectroscopy and Partial Least Square Calibration in the Simultaneous Quantification of Isolated trans and Conjugated Linoleic Acids. Lipid Analysis and Lipidomics: New Techniques and Applications. The American Oil Chemists' Society. faglig_bok_forlag. s 135 - 154.
  • Christy, Alfred A. Kvalheim, Olav (2006). Latent-variable analysis of multivariate data in infrared spectrometry. Near-Infrared Spectroscopy in Food Science and Technology. Wiley-VCH Verlagsgesellschaft. s 145 - 162.
  • Christy, Alfred A. Egeberg, Per K. (2006). Quantitative determination of saturated and unsaturated fatty acids in edible oils by infrared spectroscopy and chemometrics. Chemometrics and Intelligent Laboratory Systems. ISSN: 0169-7439. 82 (01.feb). s 130 - 136.
  • Christy, Alfred A. (2006). Redusert analytisk tilgjengelighet for PCB i humusfarget vann. Vann. ISSN: 0042-2592. 2s 118 - 126.
  • Christy, Alfred A. Guo, JX Liu, Quanru Li, MY Wu, ZL (2006). The effect of alkali on crude oil/water interfacial properties and the stability of crude oil emulsions. Colloids and Surfaces A: Physicochemical and Engineering Aspects. ISSN: 0927-7757. 273 (01.mar). s 213 - 218.
  • Christy, Alfred A. (2005). Partial Least Squares Processing of Near-Infrared Spectra for Discrimination and Quantification of Adulterated Olive Oils. Spectroscopy Letters. ISSN: 0038-7010. 38s 839 - 851.
  • Christy, Alfred A. Egeberg, Per K. (2005). Quantitative determination of surface silanol groups in silicagel by deuterium exchange combined with infrared spectroscopy and chemometrics. The Analyst. ISSN: 0003-2654. 130 (5). s 738 - 744.
  • Li, MY Lin, MQ Wu, ZL Christy, Alfred A. (2005). The influence of NaOH on the stability of paraffinic crude oil emulsion. Fuel. ISSN: 0016-2361. 84s 183 - 187.
  • Christy, Alfred A. (2004). The Detection and Quantification of Adulteration in OliveOil by Near-Infrared Spectroscopy and Chemometrics. Analytical Sciences. ISSN: 0910-6340. 20 (6). s 935 - 940.
  • Christy, Alfred A. Østensen, Eilif Egeberg, Per K. (2003). Simultaneous quantitative determination of isolated trans fatty acids and conjugated linoleic acids in oils and fats by chemometric analysis of the infrared profiles. Vibrational Spectroscopy. ISSN: 0924-2031. 2031 (33). s 37 - 48.
  • Christy, Alfred A. (2001). Modern Fourier Transform Infrared Spectroscopy. ISBN: 444500448. Elsevier. s 376.
  • Christy, Alfred Antony (2018). Applications of Near Infrared Spectroscopy.
  • Christy, Alfred Antony (2018). operational principles of spectroscopic techniques.
  • Christy, Alfred Antony (2018). Quantitative Determination of Calcium Hydroxide in Cement by Near Infrared Spectroscopy.
  • Christy, Alfred Antony (2018). Water Adsorption Properties of Malto-Oligosaccharides and Cyclodextrins Studied by near Infrared Spectroscopy and Gravimetry.
  • Christy, Alfred Antony (2017). spectroscopy and chromatography.
  • Christy, Alfred Antony (2017). instrumental analysis.
  • Christy, Alfred Antony (2017). Titanium oxide and water adsorption.

Sist endret: 21.06.2018 14:06

Send studiet på mail