Determination of Hexazinone in Groundwater by Direct-Injection High-Performance Liquid Chromatography

Autor:	L E Katz, Lewis B Perkins, Rodney J. Bushway
Rok vydání:	1999
Předmět:	Pharmacology Detection limit Analyte Chromatography Chemistry Extraction (chemistry) Contamination High-performance liquid chromatography Hexazinone Analytical Chemistry chemistry.chemical_compound Environmental Chemistry Water pollution Agronomy and Crop Science Groundwater Food Science
Zdroj:	Journal of AOAC INTERNATIONAL. 82:1505-1508
ISSN:	1944-7922 1060-3271
DOI:	10.1093/jaoac/82.6.1505
Popis:	Hexazinone has been detected at levels ranging from 0.2 to 50 μg/L in many groundwater samples from eastern Maine over the past decade. A rapid and inexpensive direct-injection high-performance liquid chromatographic (HPLC) method has been developed to monitor contamination levels of the herbicide. The method is sensitive (limit of quantitation = 0.33 μg/L) and is linear to 33.0 μg/L (R2 = 0.9995). Direct injection results from 50 field samples compared well (R2 = 0.98) with an HPLC method using solid-phase extraction for concentration and cleanup. The technique is very reproducible (coefficients of variation of 0-8.4% within day and 3.0-13.2% between day) and eliminates loss of analyte because of fewer steps in the procedure.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cb2560057386c2d88c83fd3527e6e5bf https://doi.org/10.1093/jaoac/82.6.1505 Zobrazit plný text záznamu