Determination of phosphorous oxoanions in pharmaceuticals using non-suppressed ion chromatography

An electrode immobilized in a graphite matrix with ion pair complex for the determination of diclofenac in pharmaceuticals

A simple, precise, rapid and low-cost potentiometric method for diclofenac determination in pharmaceuticals is proposed. A new diclofenac-sensitive electrode was constructed by incorporating the diclofenac ion pair complex with butyl rhodamine B into graphite matrix. The electrode exhibited a linear response over the concentration range of 1 × 10-4 – 5 × 10-2 mol L-1, a detection limit of 3.9×1...

Determination of Biogenic Amines in Fermented and Non-Fermented Foods Using Ion Chromatography with Suppressed Conductivity and Integrated Pulsed Amperometric Detections

Simultaneous extraction and determination of four different groups of pharmaceuticals in compost using optimized ultrasonic extraction and ultrahigh pressure liquid chromatography-mass spectrometry.

An analytical method for the simultaneous extraction and determination of four different groups of pharmaceuticals in compost from the biodegradation of biological infectious hazardous wastes (BIHW) was developed and successfully validated. Compost samples were spiked with known concentrations of the pharmaceuticals of interest. Ultrasonic extraction with an ethyl acetate and methanol solution ...

A Novel High-Performance Liquid Chromatography Method for Detection of Alginate in Pseudomonas aeruginosa

Background and Objective: The opportunistic pathogen Pseudomonas aeruginosa secrets a capsule-like polysaccharide called alginate which is important for evasion of host defenses, especially in patients with suppressed immunity. Method of alginate determination has an important role in the study of microb...

Determination of methylamines and trimethylamine-N-oxide in particulate matter by non-suppressed ion chromatography.

An ion chromatography method with non-suppressed conductivity detection was developed for the simultaneous determination of methylamines (methylamine, dimethylamine, trimethylamine) and trimethylamine-N-oxide in particulate matter air samples. The analytes were well separated by means of cation-exchange chromatography using a 3 mM nitric acid/3.5% acetonitrile (v/v) eluent solution and a Metros...