Fully automated method based on on-line molecularly imprinted polymer solid-phase extraction for determination of lovastatin in dietary supplements containing red yeast rice
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11160%2F19%3A10399563" target="_blank" >RIV/00216208:11160/19:10399563 - isvavai.cz</a>
Výsledek na webu
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=B2aw_d6Zvo" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=B2aw_d6Zvo</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00216-018-1554-0" target="_blank" >10.1007/s00216-018-1554-0</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Fully automated method based on on-line molecularly imprinted polymer solid-phase extraction for determination of lovastatin in dietary supplements containing red yeast rice
Popis výsledku v původním jazyce
A fully automated method for the determination of lovastatin in dietary supplements containing red yeast rice has been developed. It uses a sequential injection analysis system combined with solid-phase extraction applying highly selective molecularly imprinted polymer sorbent. A miniaturized column for on-line extraction was prepared by packing 4.5mg of the sorbent in a 5.0x2.5-mm-i.d. cartridge, which was used in the flow manifold. Sequential injection analysis manifold enabled all steps of lovastatin extraction and continuous spectrophotometric detection at 240nm. A limit of detection of 60 mu g g(-1), a limit of quantitation of 200 mu g g(-1), and a linear calibration range of 200-2000 mu g g(-1) were achieved. Intra-day and inter-day precision values (RSD) were <=6.7% and <=4.9%, respectively, and method recovery values of spiked red yeast rice extracts at 200, 1000, and 2000 mu g g(-1) concentration levels were 82.9, 95.2, and 87.7%. Our method was used for determination of lovastatin lactone in four dietary supplements containing red yeast rice as a natural source of lovastatin, also known as monacolin K. The extracted samples were subsequently analyzed by the reference UHPLC-MS/MS method. Statistical comparison of results (F test, t test, alpha=0.05) obtained by both methods did not reveal significant difference. A substantial advantage of the new automated approach is high sample throughput thanks to the analysis time of 7.5min, miniaturization via down-scaling the extraction column, and smaller sample and solvent consumption, as well as reduced generation of waste.
Název v anglickém jazyce
Fully automated method based on on-line molecularly imprinted polymer solid-phase extraction for determination of lovastatin in dietary supplements containing red yeast rice
Popis výsledku anglicky
A fully automated method for the determination of lovastatin in dietary supplements containing red yeast rice has been developed. It uses a sequential injection analysis system combined with solid-phase extraction applying highly selective molecularly imprinted polymer sorbent. A miniaturized column for on-line extraction was prepared by packing 4.5mg of the sorbent in a 5.0x2.5-mm-i.d. cartridge, which was used in the flow manifold. Sequential injection analysis manifold enabled all steps of lovastatin extraction and continuous spectrophotometric detection at 240nm. A limit of detection of 60 mu g g(-1), a limit of quantitation of 200 mu g g(-1), and a linear calibration range of 200-2000 mu g g(-1) were achieved. Intra-day and inter-day precision values (RSD) were <=6.7% and <=4.9%, respectively, and method recovery values of spiked red yeast rice extracts at 200, 1000, and 2000 mu g g(-1) concentration levels were 82.9, 95.2, and 87.7%. Our method was used for determination of lovastatin lactone in four dietary supplements containing red yeast rice as a natural source of lovastatin, also known as monacolin K. The extracted samples were subsequently analyzed by the reference UHPLC-MS/MS method. Statistical comparison of results (F test, t test, alpha=0.05) obtained by both methods did not reveal significant difference. A substantial advantage of the new automated approach is high sample throughput thanks to the analysis time of 7.5min, miniaturization via down-scaling the extraction column, and smaller sample and solvent consumption, as well as reduced generation of waste.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
30104 - Pharmacology and pharmacy
Návaznosti výsledku
Projekt
<a href="/cs/project/EF16_019%2F0000841" target="_blank" >EF16_019/0000841: Zvýšení účinnosti a bezpečnosti léčiv a nutraceutik: moderní metody - nové výzvy</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2019
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Analytical and Bioanalytical Chemistry
ISSN
1618-2642
e-ISSN
—
Svazek periodika
411
Číslo periodika v rámci svazku
6
Stát vydavatele periodika
DE - Spolková republika Německo
Počet stran výsledku
10
Strana od-do
1219-1228
Kód UT WoS článku
000458358400010
EID výsledku v databázi Scopus
2-s2.0-85059704439