Preliminary studies on the properties of a commercially available graphitized carbon black for the solid-phase (or liquid-solid) extraction of drugs and metabolites from biological fluids such as urine and plasma are described. A variety of basic drugs, all of the beta-blocker type, were efficiently
✦ LIBER ✦
The use of C18 bonded silica in the solid phase extraction of basic drugs — possible role for ionic interactions with residual silanols
✍ Scribed by R.J. Ruane; I.D. Wilson
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 220 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0731-7085
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## Abstract A comparison between C~18~ silica and multi‐walled carbon nanotubes (MWCNTs) in the extraction of Chlorpyrifos and Phosalone in environmental water samples was carried out using HPLC. Parameters affecting the extraction were type and volume of elution solvent, pH and flow rate of sample