|
1
|
Determination of Copper in Different Ethanolic Matrices Using a Chloropropyl Silica Gel Modified with a Nanostructured Cubic Octa(3-aminopropyl)octasilsesquioxane. J CHEM-NY 2013. [DOI: 10.1155/2013/509341] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The chloropropyl silica gel was modified with octa(3-aminopropyl)octasilsesquioxane and characterized by Fourier transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (NMR), spectroscopies, and surface and area porosity. The specific sorption capacity of metallic ions (Cu2+and Ni2+) increases in the following solvent order: water<ethanol 42%<ethanol<ketone. The high values of the constant (K) in the order of 103 L mol−1suggested the high adsorbent capacity of the modified silica (SGAPC) for Cu2+and Ni2+. SGAPC was applied to a separation column and shows recoveries of around 100% of copper in samples of sugar cane spirit, vodka, ginger brandy, and ethanol fuel.
Collapse
|
|
2
|
Zakrzewski R, Ciesielski W, Chrebelska A, Łluczak A. Determination of thiouracils in high-performance thin-layer chromatography with combination of iodine-azide reaction. JPC-J PLANAR CHROMAT 2011. [DOI: 10.1556/jpc.24.2011.5.12] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
|
3
|
|
|
4
|
Zakrzewski R. High Performance Liquid Chromatography Coupled with Post-Column Iodine-Azide Reaction for the Determination of Benzylthiouracil in Urine. J LIQ CHROMATOGR R T 2009. [DOI: 10.1080/10826070903249260] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Robert Zakrzewski
- a Department of Instrumental Analysis , University of Łódź , Łódź, Poland
| |
Collapse
|
|
5
|
Zakrzewski R. Postcolumn Iodine–Azide Reaction as a Detection System in HPLC for the Determination of Methylthiouracil in Urine. ANAL LETT 2009. [DOI: 10.1080/00032710902890421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
|
6
|
Determination of propylthiouracil in pharmaceutical formulation by high-performance liquid-chromatography with a post-column iodine-azide reaction as a detection system. Arch Pharm Res 2008; 31:1622-30. [DOI: 10.1007/s12272-001-2160-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2007] [Revised: 11/28/2007] [Accepted: 11/27/2008] [Indexed: 10/21/2022]
|
|
7
|
Zakrzewski R. High-performance liquid chromatographic determination of propylthiouracil in human urine by post-column iodine–azide reaction. J Pharm Biomed Anal 2008; 48:145-50. [DOI: 10.1016/j.jpba.2008.04.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2008] [Revised: 04/28/2008] [Accepted: 04/30/2008] [Indexed: 11/17/2022]
|
|
8
|
Chernov’yants MS, Dolinkin AO, Braslavskaya IV. Chromatographic determination of 6-substituted 2-thiouracyls, thyreostatic preparations. JOURNAL OF ANALYTICAL CHEMISTRY 2008. [DOI: 10.1134/s1061934808090086] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|