High-performance liquid chromatographic separation of biologically important arsenic species utilizing on-line inductively coupled argon plasma atomic emission spectrometric detection

Use of direct current plasma as an element selective detector for simultaneous ion chromatographic determination of arsenic(III) and arsenic(V) in the presence of other common anions

“…Several publications have appeared in the literature reporting on the application of ESDs in liquid chromatography (15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28). The most common ESDs are those that are based on electronic transitions, which include several atomic spectroscopic techniques such as flame atomic absorption (15)(16)(17)(18)(19)•, graphite furnace atomic absorption (20,21), and plasma atomic emission (15, [22][23][24][25][26][27].…”

“…In this way, element speciation can be facilitated considerably. With the use of anion exchange high-performance liquid chromatography coupled with inductively coupled plasma (ICP), Spall and co-workers (28) developed methods for simultaneous determination of several species of arsenic. No information was given, however, on the cause of observed distorted peaks nor were attempts made to improve detection.…”