Details

Autor(en) / Beteiligte

• Beale, David J.
• Kaserzon, Sarit L.
• Porter, Nichola A.
• Roddick, Felicity A.
• Carpenter, Peter D.

Titel

Detection of s-triazine pesticides in natural waters by modified large-volume direct injection HPLC

Ist Teil von

• Talanta (Oxford), 2010-07, Vol.82 (2), p.668-674

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

2010

Link zum Volltext

Quelle

Access via ScienceDirect (Elsevier)

Beschreibungen/Notizen

• There is a need for simple and inexpensive methods to quantify potentially harmful persistent pesticides often found in our water-ways and water distribution systems. This paper presents a simple, relatively inexpensive method for the detection of a group of commonly used pesticides (atrazine, simazine and hexazinone) in natural waters using large-volume direct injection high performance liquid chromatography (HPLC) utilizing a monolithic column and a single wavelength ultraviolet–visible light (UV–vis) detector. The best results for this system were obtained with a mobile phase made up of acetonitrile and water in a 30:70 ratio, a flow rate of 2.0 mL min −1, and a detector wavelength of 230 nm. Using this method, we achieved retention times of less than three minutes, and detection limits of 5.7 μg L −1 for atrazine, 4.7 μg L −1 for simazine and 4.0 μg L −1 for hexazinone. The performance of this method was validated with an inter-laboratory trial against a National Association of Testing Authorities (NATA) accredited liquid chromatography–mass spectrometry/mass spectrometry (LC–MS/MS) method commonly used in commercial laboratories.