Multisyringe flow injection analysis for determination of 1-naphthylamine in water samples

Multisyringe flow injection analysis for determination of 1-naphthylamine in water samples

1-Naphthylamine (NPA) is one of the main degradation products of pesticides derived from naphthalene, and a well-known bladder carcinogen in men. The Griess assay is used for NPA determination because of its high sensitivity and selectivity. The azo dye 4-(sulphophenylazo)-1-naphthylamine is formed,...

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Bibliographic Details
Published in:Mikrochimica acta (1966) Vol. 153; no. 3-4; pp. 139 - 144
Main Authors: GUZMAN MAR, Jorge L, LOPEZ MARTINEZ, Leticia, LOPEZ DE ALBA, Pedro L, CASTREJON DURAN, Jesus E, CERDA MARTIN, Victor
Format: Journal Article
Language:English
Published: Wien Springer 01-02-2006
New York, NY
Subjects:
Analysis methods
Analytical chemistry
Applied sciences
Chemistry
Exact sciences and technology
Global environmental pollution
Natural water pollution
Pollution
Water treatment and pollution
Spain, Balearic Is., Mallorca, Palma de Mallorca
Chemical analysis
1- naphthylamine (NPA)
Multisyringe flow injection analysis (MSFIA)
Pesticides
Griess reaction
Selectivity
Tap water
Waste water
Sensitivity
Naphthalene
Azo dye
water samples
Environment
Degradation product
Seawater
Flow injection
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Summary:1-Naphthylamine (NPA) is one of the main degradation products of pesticides derived from naphthalene, and a well-known bladder carcinogen in men. The Griess assay is used for NPA determination because of its high sensitivity and selectivity. The azo dye 4-(sulphophenylazo)-1-naphthylamine is formed, which shows a peak maximum at 540 nm. After optimizing multisyringe flow injection analysis (MSFIA) parameters, the analytical characteristics of the method were obtained, with a working linear range of 0.5 to 14 mg L super(-1), according to the equation A = 0.0738 plus or minus 0.0019 [NPA] + 0.0028 plus or minus 0.0042, r = 0.9997. Values for RSD (%) and E sub(rel) (%) were calculated for the concentration levels of 0.5, 6 and 12 mg L super(-1); values obtained were 1.1, 0.4 and 0.3% for RSD and 0.8, 0.3 and 0.2% for E sub(rel), respectively. LD was 0.01 mg L super(-1) and LQ was 0.04 mg L super(-1) NPA. The MSFIA procedure for the determination of NPA was applied to different water samples (well water, tap water, seawater, and wastewater from the EDAR-1, Palma de Mallorca water treatment plant), with satisfactory results and a throughput of 90 samples per hour.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0026-3672
1436-5073
DOI:10.1007/s00604-005-0469-6