Electrospray ionization–Ion mobility spectrometry as a field monitoring method for the detection of atrazine in natural water
✍ Scribed by Ching Wu; Herbert H. Hill Jr.; Amy P. Gamerdinger
- Publisher
- John Wiley and Sons
- Year
- 1998
- Weight
- 106 KB
- Volume
- 2
- Category
- Article
- ISSN
- 1086-900X
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✦ Synopsis
Electrospray ionization-ion mobility spectrometry (ESI-IMS) was used to detect atrazine in a synthetic water sample that contained and water 0.01 M KCl that was collected from a natural cranberry bog. The bog water contained humic substances and had a dissolved organic carbon (DOC) concentration of There 16 mg/l. was no interference from these matrices observed in ESI-IMS measurements. The analytical merits of ESI-IMS for direct water sampling and detection are reported. A dynamic response range of more than 2 orders of magnitude and a limit of detection in the nanomolar range were obtained. In addition, results of the ESI-IMS method were compared with conventional spectra obtained by HPLC with UV detection. Concentration measurements for atrazine in bog water determined with ESI-IMS matched those obtained by HPLC. Successful detection of the target compound in a complex water matrix indicated that ESI-IMS could be used as a fast screening technique for solution-phase environmental samples. Results from this study provide fundamental information necessary for constructing a field-monitoring device based on the ESI-