Single Uv-Absorbing Background Electrolyte for Simultaneous Detection of Cations and Anions in Capillary Electrophoresis

Enhancement of detection sensitivity for indirect photometric detection of anions and cations in capillary electrophoresis

“…Raguenes et al [122] used a BGE containing Tris/1,5naphthalenedisulfonic acid to separate and detect potassium, ammonium, sodium, lithium, ascorbate, sorbate, benzoate, lactate, acetate, hydrogencarbonate, phosphate, formate, and fluoride ions in less than 9 min with detection limits between 0.1 and 1 ppm. The analysis of a real sample yielded results comparable with inductively coupled plasma-mass spectroscopy and ion chromatography.…”

Determinação simultânea de cátions por eletroforese capilar: fundamentos e aplicações

“…A utilidade deste método de análise está na possibilidade de análise simultânea de dois grupos de compostos, cátions e ânions, que normalmente requerem duas configurações de equipamento independentes, em uma única corrida. A Figura 6 apresenta a análise simultânea de cátions e ânions 19,20,21 . …”

Simultaneous determination of phosphate and calcium in river water samples by capillary zone electrophoresis with UV detection

“…Several different approaches have been developed to examine the possibility of simultaneous separation and detection of both anions and cations using CZE. First, a high electro-osmotic flow (EOF) can be used to force the cations and anions to co-migrate towards the detector [11][12][13][14][15]16]. Secondly, Xiong et al [14,15] developed new background electrolytes (BGEs) containing two UV-absorbing probes that were used to separate and detect alkali metals and organic acids simultaneously in real samples.…”

“…First, a high electro-osmotic flow (EOF) can be used to force the cations and anions to co-migrate towards the detector [11][12][13][14][15]16]. Secondly, Xiong et al [14,15] developed new background electrolytes (BGEs) containing two UV-absorbing probes that were used to separate and detect alkali metals and organic acids simultaneously in real samples. Thirdly, Kuban et al [17,18] and Padarauskas et al [19][20][21] developed special CE systems, where the sample was injected from both ends of the capillary and both cations and anions migrated in opposite directions from each end, and the ions were detected at the detector window after applying voltage.…”