2007
DOI: 10.1016/j.microc.2006.10.001
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Capillary electrophoretic determination of ammonia using headspace single-drop microextraction

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Cited by 45 publications
(23 citation statements)
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“…Techniques, such as solid-phase extraction (SPE) [6][7][8][9][10], liquid-liquid extraction [11] and solidphase microextraction [12,13] can be used in combination with CE to improve sensitivity. These extraction procedures can be performed through the use of sequential injection (SI) techniques [14][15][16].…”
Section: Introductionmentioning
confidence: 99%
“…Techniques, such as solid-phase extraction (SPE) [6][7][8][9][10], liquid-liquid extraction [11] and solidphase microextraction [12,13] can be used in combination with CE to improve sensitivity. These extraction procedures can be performed through the use of sequential injection (SI) techniques [14][15][16].…”
Section: Introductionmentioning
confidence: 99%
“…As the pH increased from pH 8 and onwards, the blue colouration of silica pellet was getting obviously developed. The deprotonation of analyte was high in basic conditions especially from pH 11.6 to pH 12.5, and the blue colour became darkest at pH 13 due to the presence of excess NH 3 in basic conditions, which promoted the formation of immobilized [Co(NH 3 ) 6 ] 2+ complex [11]. Thus, optimum pH 13 was applied for further optimization analyses.…”
Section: Ph Effectmentioning
confidence: 99%
“…Устранить влияние состава пробы на резуль-таты спектрофотометрического определения ионов аммония можно путем включения в схему анализа парофазной микроэкстракции, позволяющей выде-лять летучий аналит из пробы в жидкую фазу, ко-торая максимально соответствует по составу ус-ловиям дальнейшего определения аналита [27,28].…”
Section: т 18 №unclassified