Display options
Cite
Jurado-Sánchez B, Ballesteros E, Gallego M. Automatic screening method for the preconcentration and determination of N-nitrosamines in water. Talanta. 2007;73(3):498-504doi: 10.1016/j.talanta.2007.04.007.
Jurado-Sánchez, B., Ballesteros, E., & Gallego, M. (2007). Automatic screening method for the preconcentration and determination of N-nitrosamines in water. Talanta, 73(3), 498-504. https://doi.org/10.1016/j.talanta.2007.04.007
Jurado-Sánchez, Beatriz, et al. "Automatic screening method for the preconcentration and determination of N-nitrosamines in water." Talanta vol. 73,3 (2007): 498-504. doi: https://doi.org/10.1016/j.talanta.2007.04.007
Jurado-Sánchez B, Ballesteros E, Gallego M. Automatic screening method for the preconcentration and determination of N-nitrosamines in water. Talanta. 2007 Sep 30;73(3):498-504. doi: 10.1016/j.talanta.2007.04.007. Epub 2007 Apr 21. PMID: 19073062.
Copy Download .nbib Format: NLM
Share it on

Talanta. 2007 Sep 30;73(3):498-504. doi: 10.1016/j.talanta.2007.04.007. Epub 2007 Apr 21.

Automatic screening method for the preconcentration and determination of N-nitrosamines in water.

Talanta

Beatriz Jurado-Sánchez, Evaristo Ballesteros, Mercedes Gallego

Affiliations

  1. Department of Analytical Chemistry, Campus de Rabanales, University of Córdoba, E-14071 Córdoba, Spain.

PMID: 19073062 DOI: 10.1016/j.talanta.2007.04.007

Abstract

A screening method was developed to discriminate among water samples contaminated or uncontaminated with N-nitrosamines in order to reduce the use of expensive instruments such as chromatographs. The system is based on the preconcentration of the analytes onto a sorbent column, elution and derivatization to form nitrite, then formation of a coloured product (Griess reaction) and photometric detection. The limit of detection achieved for 100ml of sample volume was 0.2mug/l and the sample frequency 3h(-1). The reliability of the proposed method of the N-nitrosamines was established at five concentrations (between 0.5 and 3 times the limit of detection). For a level concentration of 0.6mug/l (three times the limit of detection), the percentage of false negatives is 0%. The method was applied to the screening of several water samples (river, pond, well, tap and waste) with a positive response only for waste water samples.

Publication Types