Direct capillary electrophoresis analysis of basic and acidic drugs from microliter volume of human body fluids after liquid-phase microextraction through nano-fibrous membrane
Abstract In the present work, a disposable microextraction device with a polyamide 6 nano-fibrous supported liquid membrane (SLM) is employed for the pretreatment of minute volumes of biological fluids. The device is placed in a sample vial for an at-line coupling to a commercial capillary electrophoresis instrument with UV-Vis detection (CE-UV) and injections are performed fully automatically from the free acceptor solution above the SLM with no contact between the capillary and the membrane. Up to 4-fold enrichment of model basic (nortriptyline, haloperidol, loperamide, and papaverine) and acidic (ibuprofen, naproxen, ketoprofen, and diclofenac) drugs is achieved by optimizing the ratio of the donor to the acceptor solution volumes (16 to 4 μL, respectively). The actual setup enables SLM extractions from less than a drop of sample and is suitable for pretreatment of scarce human body fluids. Two unique methods are reported for efficient clean-up and enrichment of the basic and acidic drugs from capillary blood (formed as dried blood spot), serum, and urine samples, which enable their determination at therapeutic and/or toxic levels. The hyphenation of the SLM extraction with CE-UV analysis provides good repeatability (RSD, 2.4–14.9%), linearity (r2, 0.988–1.000), sensitivity (LOD, 0.017–0.22 mg $ L^{−1} $), and extraction recovery (ER, 20–106%) at short extraction times (10 min) and with minimum consumption of samples and reagents. Graphical abstract.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2019 |
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| Erschienen: |
2019 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:412 |
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| Enthalten in: |
Analytical and bioanalytical chemistry - 412(2019), 1 vom: 19. Nov., Seite 181-191 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Román-Hidalgo, Cristina [VerfasserIn] |
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| Links: |
Volltext [lizenzpflichtig] |
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| Themen: |
Acidic drugs |
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| Anmerkungen: |
© Springer-Verlag GmbH Germany, part of Springer Nature 2019 |
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| doi: |
10.1007/s00216-019-02225-y |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
SPR002274108 |
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| 245 | 1 | 0 | |a Direct capillary electrophoresis analysis of basic and acidic drugs from microliter volume of human body fluids after liquid-phase microextraction through nano-fibrous membrane |
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| 520 | |a Abstract In the present work, a disposable microextraction device with a polyamide 6 nano-fibrous supported liquid membrane (SLM) is employed for the pretreatment of minute volumes of biological fluids. The device is placed in a sample vial for an at-line coupling to a commercial capillary electrophoresis instrument with UV-Vis detection (CE-UV) and injections are performed fully automatically from the free acceptor solution above the SLM with no contact between the capillary and the membrane. Up to 4-fold enrichment of model basic (nortriptyline, haloperidol, loperamide, and papaverine) and acidic (ibuprofen, naproxen, ketoprofen, and diclofenac) drugs is achieved by optimizing the ratio of the donor to the acceptor solution volumes (16 to 4 μL, respectively). The actual setup enables SLM extractions from less than a drop of sample and is suitable for pretreatment of scarce human body fluids. Two unique methods are reported for efficient clean-up and enrichment of the basic and acidic drugs from capillary blood (formed as dried blood spot), serum, and urine samples, which enable their determination at therapeutic and/or toxic levels. The hyphenation of the SLM extraction with CE-UV analysis provides good repeatability (RSD, 2.4–14.9%), linearity (r2, 0.988–1.000), sensitivity (LOD, 0.017–0.22 mg $ L^{−1} $), and extraction recovery (ER, 20–106%) at short extraction times (10 min) and with minimum consumption of samples and reagents. Graphical abstract | ||
| 650 | 4 | |a Acidic drugs |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Basic drugs |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Body fluids |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Capillary electrophoresis |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Sample treatment |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Supported liquid nano-fibrous membrane |7 (dpeaa)DE-He213 | |
| 700 | 1 | |a Dvořák, Miloš |4 aut | |
| 700 | 1 | |a Kubáň, Pavel |4 aut | |
| 700 | 1 | |a Martín-Valero, María Jesús |4 aut | |
| 700 | 1 | |a Bello-López, Miguel Ángel |4 aut | |
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