Can I read Trace Determination of Triazine Herbicides by Means of Coupled-column Liquid Chromatography and Large Volume Injection on EtoBox?

Trace Determination of Triazine Herbicides by Means of Coupled-column Liquid Chromatography and Large Volume Injection by C. Hidalgo; J.V. Sancho; F. Hernández is a Chemistry article available to read on EtoBox.

What is Trace Determination of Triazine Herbicides by Means of Coupled-column Liquid Chromatography and Large Volume Injection about?

Coupled-column liquid chromatography (LC-LC) with ultraviolet detection was used for the trace-level determination of simazine, atrazine, terbuthylazine and terbutryn in environmental water samples. A sample volume of 2 ml was directly injected in the chromatographic system, using two reversed-phase C ,a coupled columns. The mobile phases consisted of two mixtures CH3CN/H20, one with 40% of acetonitrile (M-1) and one with 70% (M-2). As a result, a rapid procedure with detection limits down to 0.1 pg I-' was developed. The method was validated by means of recovery experiments. Drinking and surface water samples were spiked at 4 and 0.4 pg 1-l yielding average recoveries between 86-104% (n=5) with coefficients of variation between l-6%. The overall procedure allowed a sample throughput of up to 60 samples per day. Surface water samples from a wet area of Castell6n (Spain) were analyzed by means of the proposed LC-LC procedure, thus simazine, terbuthylazine and terbutryn were detected at sub-pg I-' levels. Lower detection limits, between 0.02-0.05 pg I ', were reached by preconcentration of 100 ml of water samples on C,, bonded phase solid phase extraction (SPE) cartridges. Drinking w

Who reads Trace Determination of Triazine Herbicides by Means of Coupled-column Liquid Chromatography and Large Volume Injection?

Author

C. Hidalgo; J.V. Sancho; F. Hernández

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0003-2670)

Published

1997

Language

EN

Field

Chemistry (Physical Sciences)