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1. Full name: Pham Hong Quan
2. Sex: Man
3. Date of birth: 22 – 04 – 1979
4. Place of birth: Hai Duong
5. Admission decision number: 2259/SĐH, Date 07 - 12 - 2006.
6. Changes in academic process: No
7. Official thesis title: Apply solid phase extration technique and modern physiochemical methods to determine and assess the content of a number of heavy metal ions in the aqua samples.
8. Major: Analytical Chemistry
9. Code: 62 44 29 01
10. Supervisors:
Associate professor.PhD. Nguyen Xuan Trung
Associate professor.PhD. Ta Thi Thao
11. Summary of the new findings of the thesis:
a. Studied on the preparation of new material γ-Al2O3-SDS-APDC (M1) to separate and enrich the trace amount of inorganic As (III), As (V), and γ-Al2O3-SDS-dithizon (M2) with the ability to enrich the trace mercury in aqueous medium.
b. Separated for the first time As (III) from As(V) on the solid phase extraction column with the static phase M1. The results show that material M1 adsorbs well As(III) at pH = 3 but does not As(V). Applied the M1 material to enrich the trace amount of asen, the enrichment coefficient is 100 with the recovery factor higher than 98%, the adsorption capacity of As(III) on the extraction column is 20,83 ± 0,37 mg/g, and the material can be recycled about 6 times.
c. ICP- MS method was applied to determine the total content of elements such as Cr, Mn, Fe, Co, Ni, Zn, Cu, Pd, Cd in underground samples collected in Nam Tan village, Nam Sach District, Hai Duong in rain and dry seasons. The application of multivariate analysis methods to find out the sources of pollution and spreading ability of the pollution showed no evidence of pollution by elements such as Cu, Pb, Cd, Zn, Cr, Mn, but the present of Fe, As contamination in ground water was recognised as the result of geological composition. The contents of Fe, As have been diluted and flowed across northeastwards and southwestwards together with the current of the underground water.
12. Practical applicability, if any:
- Determine the trace amount of As(III), As(V) and Hg(II) in aqueous medium.
- ICP- MS method was applied to determine the total content of elements such as Cr, Mn, Fe, Co, Ni, Zn, Cu, Pd, Cd in aqueous medium. The application of multivariate analysis methods to find out the sources of pollution and spreading ability of the pollution in the underground water.
13. Further reseach directions:
- Determine the trace heavy metal in food, determine fomat.
- The application of multivariate analysis methods to find out the sources of pollution and spreading ability of the pollution in the different source.
14. Thesis-related publications:
[1]. Nguyen Xuan Trung, Pham Hong Quan, Vu Thi Trang (2007), “Study adsorption capacity of Cr(III) and Cr(VI) of modified Chitosan”, Journal of Analytical Sciences Vol.12 (1), pp. 63-67.
[2]. Nguyen Xuan Trung, Nguyen Thi Quyen, Pham Hong Quan (2008), “Determination of trace amounts of Cu2+, Pb2+, Cd2+ ions in water by Atomic Absorption Spectrometry - Solid Phase Extraction”, Journal of Analytical SciencesVol.13 (3), pp. 61-66.
[3]. Nguyen Xuan Trung, Le Minh Duc, Pham Hong Quan (2008), “Determination of trace amouts of copper, zinc by solid phase extraction and flame atomic absorption spectrometry”, Journal of Analytical Sciences Vol.13 (4), pp. 58-62.
[4]. Nguyen Xuan Trung, Vu Minh Tuan, Pham Hong Quan, Ta Thi Thao (2008), “Study using the solid phase extraction and Cold Vapour - Atomic Absorption Spectrometry to separate, enrich and determine the trace amount of mercury in aqueous”, Journal of Chemistry Vol. 46 (5A), pp. 124-128.
[5]. Nguyen Xuan Trung, Ta Thi Thao, Pham Hong Quan, Nguyen Thi Thu Hang (2009), “Application of HVG- AAS method for the determination of total amount of inorganics asenic in underground water samples colectected in Nam Tan, Nam Sach, Hai Duong”, Journal of Chemistry Vol.47(2A), pp. 308-313.
[6]. Pham Hong Quan, Nguyen Xuan Trung, Ta Thi Thao, Nguyen Tien Luyen (2010), “Study the separation and determination of inorganic arsenic species using the HGV- AAS method combined with solid phase extraction”, Journal of Analytical Sciences Vol.15(3), pp. 42-48.
[7]. Ta Thi Thao, Pham Hong Quan, Nguyen Xuan Trung (2010), “Using multivariate analyses and Geographic Information Systems (GIS) to evaluate heavy metal population in underground water in Nam Sach, Hai Duong”, Journal of Chemistry Vol. 48(4C), pp. 576 – 581.
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