2002
DOI: 10.1002/1615-9314(20020201)25:3<141::aid-jssc141>3.0.co;2-3
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Fundamental studies on selectivity in 3-phase liquid-phase microextraction (LPME) of basic drugs

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Cited by 61 publications
(27 citation statements)
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“…Thus, the hollow fiber based LPME is a reliable and robust technique which can provide high enrichment and low limits of detection. To date, many works published have successfully applied the hollow fiber based LPME for extraction of several different classes of drugs from various matrices [24][25][26][27]. Final analysis of extraction solutions has been reported with CE [23], HPLC [28], GC-MS [29], and LC-MS [30].…”
Section: Introductionmentioning
confidence: 99%
“…Thus, the hollow fiber based LPME is a reliable and robust technique which can provide high enrichment and low limits of detection. To date, many works published have successfully applied the hollow fiber based LPME for extraction of several different classes of drugs from various matrices [24][25][26][27]. Final analysis of extraction solutions has been reported with CE [23], HPLC [28], GC-MS [29], and LC-MS [30].…”
Section: Introductionmentioning
confidence: 99%
“…36 Ajustes no pH podem aumentar a eficiência da extração, uma vez que tanto o equilíbrio de dissociação quanto a solubilidade de ácidos e bases são diretamente afetados pelo pH da amostra. 37 …”
Section: Agitaçãounclassified
“…39,43 Nesse modo trifásico empregado para fármacos básicos, diversas soluções ácidas vêm sendo utilizadas, como os ácidos clorídrico, acético, fórmico, nítrico, sulfúrico e trifluoracético. 37 Nesses sistemas, os ácidos fortes vêm se destacando, resultando em melhores valores de recuperação quando comparados com soluções aceptoras contendo ácidos fracos. Tal melhora é atribuída principalmente ao menor pH e eficaz protonação dos analitos obtidos no emprego dessas soluções.…”
Section: Fase Aceptora No Sistema De Três Fasesunclassified
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“…A miniaturised device for LLE was recently introduced [1][2][3][4][5][6][7][8]. This technique; liquid-phase microextraction (LPME) is based on porous hollow polypropylene fibre.…”
Section: Introductionmentioning
confidence: 99%