On-line SFC/FT-IR analysis of agriculturally-related compounds
✍ Scribed by Shah, S. ;Taylor, L. T.
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 471 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0935-6304
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✦ Synopsis
Several agricultural compounds which are used as herbicide precursors have been analyzed by SFC and are detected on-line via a flow cell FT-IR interface. A mixture of ureas is separated on a microbore packed column; while a mixture of benzamides and anilides and a mixture of sulfonamides are separated on capillary columns. The use of 100 O/ o C02 as the mobile phase enables an infrared spectrum of each eluting analyte to be obtained on-line with good signal to noise ratio.The urea mixture isalso separated with a conventional cyanopropyl bonded phase analytical scale packed column using a methanol-modified C02 mobile phase and UVdetection.The separations achieved with and without modifier are compared.