HPLC-MSn and GC-MS methods to study sunlight and UV-lamp degradations of 1-amino-5-naphthalene sulfonate

V. Gianotti; F. Gosetti; S. Polati; M. C. Gennaro

doi:10.1016/j.chemosphere.2006.11.066

HPLC-MSⁿ and GC-MS methods to study sunlight and UV-lamp degradations of 1-amino-5-naphthalene sulfonate

V. Gianotti, F. Gosetti, S. Polati, M. C. Gennaro

Dipartimento per lo Sviluppo Sostenibile e la Transizione Ecologica

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

HPLC-DAD, HPLC-MS/MS, GC-MS and spectrophotometric methods are employed to investigate the degradation process of sodium 1-amino-5-naphthalene sulfonate (1A5NS) aqueous solutions, when exposed to sunlight and UV-lamp (254 nm) irradiations. Experimental results show that both sunlight and 254 nm UV-lamp irradiations destroy the chemical and give rise to major degradation products, characterised by the same m/z ratios. Degradation times are lower for sunlight irradiation, for which a t_1/2 value of 137.4 min has been evaluated, in comparison with the value of t_1/2 of 26.8 min, observed for UV-lamp irradiation. The degradation pathway and the structures of the degradation products are proposed.

Lingua originale	Inglese
pagine (da-a)	1993-1999
Numero di pagine	7
Rivista	Chemosphere
Volume	67
Numero di pubblicazione	10
DOI	https://doi.org/10.1016/j.chemosphere.2006.11.066
Stato di pubblicazione	Pubblicato - mag 2007

Accesso al documento

10.1016/j.chemosphere.2006.11.066

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@article{883d3fbb3c95484c8cec34d5cd04951c,

title = "HPLC-MSn and GC-MS methods to study sunlight and UV-lamp degradations of 1-amino-5-naphthalene sulfonate",

abstract = "HPLC-DAD, HPLC-MS/MS, GC-MS and spectrophotometric methods are employed to investigate the degradation process of sodium 1-amino-5-naphthalene sulfonate (1A5NS) aqueous solutions, when exposed to sunlight and UV-lamp (254 nm) irradiations. Experimental results show that both sunlight and 254 nm UV-lamp irradiations destroy the chemical and give rise to major degradation products, characterised by the same m/z ratios. Degradation times are lower for sunlight irradiation, for which a t1/2 value of 137.4 min has been evaluated, in comparison with the value of t1/2 of 26.8 min, observed for UV-lamp irradiation. The degradation pathway and the structures of the degradation products are proposed.",

keywords = "Degradation, HPLC-MS, Naphthalene sulfonate, Sunlight irradiation, UV irradiation",

author = "V. Gianotti and F. Gosetti and S. Polati and Gennaro, {M. C.}",

note = "Funding Information: The authors gratefully acknowledge the financial support by MIUR (Ministero dell{\textquoteright}Universit{\`a} e della Ricerca, Roma) and AATF (Agenzia Ambiente Territorio e Formazione, Alessandria, Italy).",

year = "2007",

month = may,

doi = "10.1016/j.chemosphere.2006.11.066",

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TY - JOUR

T1 - HPLC-MSn and GC-MS methods to study sunlight and UV-lamp degradations of 1-amino-5-naphthalene sulfonate

AU - Gianotti, V.

AU - Gosetti, F.

AU - Polati, S.

AU - Gennaro, M. C.

N1 - Funding Information: The authors gratefully acknowledge the financial support by MIUR (Ministero dell’Università e della Ricerca, Roma) and AATF (Agenzia Ambiente Territorio e Formazione, Alessandria, Italy).

PY - 2007/5

Y1 - 2007/5

N2 - HPLC-DAD, HPLC-MS/MS, GC-MS and spectrophotometric methods are employed to investigate the degradation process of sodium 1-amino-5-naphthalene sulfonate (1A5NS) aqueous solutions, when exposed to sunlight and UV-lamp (254 nm) irradiations. Experimental results show that both sunlight and 254 nm UV-lamp irradiations destroy the chemical and give rise to major degradation products, characterised by the same m/z ratios. Degradation times are lower for sunlight irradiation, for which a t1/2 value of 137.4 min has been evaluated, in comparison with the value of t1/2 of 26.8 min, observed for UV-lamp irradiation. The degradation pathway and the structures of the degradation products are proposed.

AB - HPLC-DAD, HPLC-MS/MS, GC-MS and spectrophotometric methods are employed to investigate the degradation process of sodium 1-amino-5-naphthalene sulfonate (1A5NS) aqueous solutions, when exposed to sunlight and UV-lamp (254 nm) irradiations. Experimental results show that both sunlight and 254 nm UV-lamp irradiations destroy the chemical and give rise to major degradation products, characterised by the same m/z ratios. Degradation times are lower for sunlight irradiation, for which a t1/2 value of 137.4 min has been evaluated, in comparison with the value of t1/2 of 26.8 min, observed for UV-lamp irradiation. The degradation pathway and the structures of the degradation products are proposed.

KW - Degradation

KW - HPLC-MS

KW - Naphthalene sulfonate

KW - Sunlight irradiation

KW - UV irradiation

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U2 - 10.1016/j.chemosphere.2006.11.066

DO - 10.1016/j.chemosphere.2006.11.066

M3 - Article

SN - 0045-6535

VL - 67

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EP - 1999

JO - Chemosphere

JF - Chemosphere

IS - 10