sevin detection limits

[vestelshirley]

What might the detetion limits for sevin with hplc and a diode array detector? The studies I've seen are 10 or more years old.

[vestelshirley]

I actually found a paper published in '09 on a favorite subject of mine - honey contamination. Some of you might konw, honey bees are dying all over the planet. Certain classes of pesticides are suspect.
This study listed a 1 ppb detection limit with a diode array detector.

"......
Use of a bisphenol-A imprinted polymer as a selective sorbent for the
determination of phenols and phenoxyacids in honey by liquid chromatography
with diode array and tandem mass spectrometric detection
E. Herrero-Hernández1, R. Carabias-Martínez, E. Rodríguez-Gonzalo∗
...."

[tom jupille]

Detection limits expressed in concentration terms are not terribly useful in HPLC, because they depend on the volume of sample injected. A more useful measure is mass-on-column. If you know the molar absorptivity, you can estimate that from the peak width.