Researchers from the New Jersey Institute of Technology (Newark, New Jersey) prepared a micro solid-phase extraction (SPE) device consisting of carbon nanotubes packed in the needle of a syringe.
Researchers from the New Jersey Institute of Technology (Newark, New Jersey) prepared a micro solid-phase extraction (SPE) device consisting of carbon nanotubes packed in the needle of a syringe. They used the device for sampling, analyte enrichment, and sample introduction and used both single- and multiwalled carbon nanotubes as sorbents. The needle held approximately 300 µg of the carbon nanotube sorbent. They found the packed carbon nanotube beds to provide extraction efficiencies as high as 27% and enrichment factors of close to 7. They reported that the method was linear, reproducible, and achieved low method detection limits of 0.1–3 ng/mL for MWNTs.
Dispersive Liquid-Liquid Microextraction: A Review and Roundup of Green Sample Prep Advancements
May 15th 2024The still relatively new technique has distinct advantages, but a few of those benefits make it incompatible with some of the currently accepted principles of green sample preparation.