Find methods for your needs

Refine by Feature

No filters available

Displaying 1-5 of 7 results for Tag: Quaternary Amine

Items per page:
Sort by

AN70: Choline and Acetylcholine

Instrument Type: IC

Choline and acetylcholine are quaternary ammonium cations which are noted for their activities as neurotransmitters. This is an older application note that shows these compounds can be determined by IC. Today we would probably use an IonPac CS19 column as shown in Application Update 189.

Quantitation of Quaternary Amines by UHPLC-CAD

Instrument Type: UHPLC

Quaternary amine surfactants are used as an important tool in biopharmaceutical processes. CTAB is used to lyse cell membranes and to solubilize RNA and DNA from solutions, and TBAC, DTAB, and TTAB have uses in proteomics, phase transfer catalysts, and in the study of surface chemistries. None of these surfactants possess a suitable chromophore. This makes the Thermo Scientific Vanquish UHPLC with Charged Aerosol Detection ideal for its ability to detect any non-volatile analyte with good sensitivity and reproducibility an excellent choice, with fast analysis times of two minutes.

Rapid determination of Carnitine in a nutritional supplement using a Thermo Scientific Acclaim Trinity P1 HPLC column

Instrument Type: HPLC

The Thermo Scientific Dionex Ultimate 3000 RSLC system is applied for the analysis of carnitine and its counter-ion tartrate in a nutritional supplement. The separation was performed on a Thermo Scientific Acclaim Trinity P1 column in under 8 minutes, with UV detection at 210nm.

Rapid determination of Acetylcarnitine and Lipoic Acid in a nutritional supplement using a Thermo Scientific Acclaim Trinity P1 HPLC column

Instrument Type: HPLC

The Thermo Scientific Dionex UltiMate 3000 RS system is applied for the analysis of acetylcarnitine and lipoic acid in nutritional supplements. The separation was performed on a Thermo Scientific Acclaim Trinity P1 column in under 8 minutes, with UV detection at 210 nm.

Improved analysis of choline, acetylcholine, and succinylcholine using a Thermo Scientific Acclaim Trinity P1 column with charged aerosol detection

Instrument Type: HPLC-CAD

The Thermo Scientific Dionex Ultimate 3000 RSLC system with quaternary LPG is applied for the analysis of anesthetic and muscle relaxants. The separation was performed in less than 12 minutes on a Thermo Scientific Dionex Acclaim Trinity P1 3 µm column with a Thermo Scientific Dionex Corona Ultra charged aerosol detector (CAD).