Microextraction by Packed Sorbent (MEPS) as a Suitable Selective Method for L-Ascorbic Acid Determination in Beverages

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F12%3A39895227" target="_blank" >RIV/00216275:25310/12:39895227 - isvavai.cz</a>

Result on the web

<a href="http://www.sciencedirect.com/science/article/pii/S0308814612010114" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0308814612010114</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.foodchem.2012.06.039" target="_blank" >10.1016/j.foodchem.2012.06.039</a>

Result language

angličtina

Original language name

Microextraction by Packed Sorbent (MEPS) as a Suitable Selective Method for L-Ascorbic Acid Determination in Beverages

Original language description

In this study the modern microextraction by packed sorbent (MEPS) method followed by HPLC-UV analysis was optimised and evaluated for determination of L-ascorbic acid (AA) content in beverages. In this case 300 ?L of sample was passed through silica BIN(barrel insert and needle assembly) and entrapped AA was eluted by 60 ?L of methanol-water (10%, v/v) solution. Recovery of the proposed method for three concentration levels ranged between 97.46% and 106.88% with relative standard deviation 8.7% (low conc.), 2.49% (medium conc.) and 1.98% (high). Obtained results of AA contents in real samples were in the ranges 56.5-195.4 ?g/mL and 130.4-1090.0 ?g/mL for ice-tea and fruit juice samples, respectively. Proposed method was compared with iodometric titration and DPPH methods, but microextraction method was found to be more selective for AA determination in tested samples.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CB - Analytical chemistry, separation

OECD FORD branch

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Project

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Continuities

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Food Chemistry

ISSN

0308-8146

e-ISSN

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Volume of the periodical

135

Issue of the periodical within the volume

3

Country of publishing house

GB - UNITED KINGDOM

Number of pages

6

Pages from-to

"1613?1618"

UT code for WoS article

000310396700106

EID of the result in the Scopus database

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