Carbon nanotubes triethylamine

Y. Li, H. Wang, X. Cao, M. Yuan, and M. Yang, A composite of polyelectrolyte-grafted multi-walled carbon nanotubes and in situ polymerized polyaniline for the detection of low concentration triethylamine vapor, Nanotechnol., 19, 015503 (2008). 

PABS polyaminobenzene sulfonic acid SWCNT single-walled carbon nanotube PANI polyanUine CNT carbon nanotube PMAS poly(2-methoxyaniline-5-sulfonic acid) MWCNT multiwalled carbon nanotube PEDOT poly(3,4-ethyl-ene dioxythiophene) PSS polystyrene sulfonated acid TMA trimethylamine TEA triethylamine Source. Data from Kukkola et al. (2012), etc. 

Selective and sensitive detection of p-carbolines is possible using HPLC methods in combination with UV, chemiluminescence, and fluorometry. Besides this, LC-MS and GC-MS are the techniques predominantly used for identification, separation, and quantitation of p-carbolines and tetrahydro-p-carbolines [13,42]. These alkaloids are detected in foods and beverages by HPLC with electrochemical detection at carbon nanotubes-modified glassy carbon electrodes (CNTs-GCE) [43]. In the seeds of Peganum harmala L., the alkaloids harmol, harmalol, harmine, and harmaline were separated using a Metasil ODS column by isocratic elution with isopropyl alcohol acetonitrile water formic acid (100 100 300 0.3) (v/v/v/v pH adjusted 8.6 with triethylamine) and detected at 330 nm [13]. These alkaloids can be detected by HPTLC method [44]. 

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