An ATR-FTIR study of glyphosate and its Fe(III) complex in aqueous solution
An AIR-FTIR study of the vibrational spectrum of glyphosate (N- phosphonomethylglycine) in aqueous solution 1 M in NaCl is reported. Band assignments are given in the 1800-850 cm-1 range based on the analysis of the spectral changes from low to high pH values (2-11). Potentiometric titrations of gly...
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| Formato: | Acta de conferencia Capítulo de libro |
| Lenguaje: | Inglés |
| Publicado: |
ACS
1998
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| Acceso en línea: | Registro en Scopus DOI Handle Registro en la Biblioteca Digital |
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| LEADER | 06647caa a22009137a 4500 | ||
|---|---|---|---|
| 001 | PAPER-19774 | ||
| 003 | AR-BaUEN | ||
| 005 | 20230518205109.0 | ||
| 008 | 190411s1998 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-0032212352 | |
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 030 | |a ESTHA | ||
| 100 | 1 | |a Barja, B.C. | |
| 245 | 1 | 3 | |a An ATR-FTIR study of glyphosate and its Fe(III) complex in aqueous solution |
| 260 | |b ACS |c 1998 | ||
| 270 | 1 | 0 | |m Dos Santos Afonso, M.; Inquimae Depto. Quimica Inorganica, Analitica y Quimica Fisica, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina; email: dosantos@q3.fcen.uba.ar |
| 506 | |2 openaire |e Política editorial | ||
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| 504 | |a Nakamoto, K., (1986) Infrared and Raman Spectra of Inorganic and Coordination Compounds; 4th Ed.; J. Wiley. New York | ||
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| 504 | |a Bellamy, L.J., (1960) Tlie Infrared Spectra of Complex Molecules; J. Wiley: New York | ||
| 504 | |a Roeges, N.P.G., (1994) A Guide to the Complete Interpretation of Infrared Spectra of Organic Structures; J. Wiley | ||
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| 520 | 3 | |a An AIR-FTIR study of the vibrational spectrum of glyphosate (N- phosphonomethylglycine) in aqueous solution 1 M in NaCl is reported. Band assignments are given in the 1800-850 cm-1 range based on the analysis of the spectral changes from low to high pH values (2-11). Potentiometric titrations of glyphosate are performed at 0.1, 0.5, and 1 M ionic strengths in NaCl and the pK(a2), PK(a3), and pK(a4) values determined. A chemometric analysis of the spectral data has been carried out to support the assignments and reproduce the pKa values. In addition, the ATR-FTIR spectrum of the 1:1 Fe(III)/glyphosate complex in aqUeOuS solution is analyzed by comparison with that of the free ligand. An ATR-FTIR study of the vibrational spectrum of glyphosate (N-phosphonomethylglycine) in aqueous solution 1 M in NaCl is reported. Band assignments are given in the 1800-850 cm-1 range based on the analysis of the spectral changes from low to high pH values (2-11). Potentiometric titrations of glyphosate are performed at 0.1, 0.5, and 1 M ionic strengths in NaCl and the pKa2, pKa3, and pKa4 values determined. A chemometric analysis of the spectral data has been carried out to support the assignments and reproduce the pKa values. In addition, the ATR-FTIR spectrum of the 1:1 Fe(III)/glyphosate complex in aqueous solution is analyzed by comparison with that of the free ligand. |l eng | |
| 593 | |a Inquimae Departamento de Quimica Inorgánica, Analítica y Química Física, Universidad de Buenos Aires, 1428, Buenos Aires, Argentina | ||
| 690 | 1 | 0 | |a FOURIER TRANSFORM INFRARED SPECTROSCOPY |
| 690 | 1 | 0 | |a HERBICIDES |
| 690 | 1 | 0 | |a IONIC STRENGTH |
| 690 | 1 | 0 | |a IRON |
| 690 | 1 | 0 | |a PH EFFECTS |
| 690 | 1 | 0 | |a SODIUM CHLORIDE |
| 690 | 1 | 0 | |a SOLUTIONS |
| 690 | 1 | 0 | |a TITRATION |
| 690 | 1 | 0 | |a CHEMOMETRIC ANALYSIS |
| 690 | 1 | 0 | |a GLYPHOSATE |
| 690 | 1 | 0 | |a WATER POLLUTION |
| 690 | 1 | 0 | |a GLYPHOSATE |
| 690 | 1 | 0 | |a IRON COMPLEX |
| 690 | 1 | 0 | |a AQUEOUS SOLUTION |
| 690 | 1 | 0 | |a ARTICLE |
| 690 | 1 | 0 | |a CHEMICAL ANALYSIS |
| 690 | 1 | 0 | |a FOURIER TRANSFORMATION |
| 690 | 1 | 0 | |a INFRARED SPECTROMETRY |
| 690 | 1 | 0 | |a WATER POLLUTANT |
| 690 | 1 | 0 | |a WATER POLLUTION |
| 700 | 1 | |a Dos Santos Afonso, M. | |
| 711 | 2 | |c Washington, DC, United States | |
| 773 | 0 | |d ACS, 1998 |g v. 32 |h pp. 3331-3335 |k n. 21 |p Environ. Sci. Technol. |x 0013936X |w (AR-BaUEN)CENRE-14 |t Environmental Science and Technology | |
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| 856 | 4 | 0 | |u https://doi.org/10.1021/es9800380 |y DOI |
| 856 | 4 | 0 | |u https://hdl.handle.net/20.500.12110/paper_0013936X_v32_n21_p3331_Barja |y Handle |
| 856 | 4 | 0 | |u https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0013936X_v32_n21_p3331_Barja |y Registro en la Biblioteca Digital |
| 961 | |a paper_0013936X_v32_n21_p3331_Barja |b paper |c PE | ||
| 962 | |a info:eu-repo/semantics/article |a info:ar-repo/semantics/artículo |b info:eu-repo/semantics/publishedVersion | ||
| 999 | |c 80727 | ||