Optimization of a new method for extraction of cyanidin chloride and PELARGONIDIN CHLORIDE (cas 134-04-3) anthocyanins with magnetic solid phase extraction and determination in fruit samples by HPLC with central composite design

Add time:10/01/2019    Source:infona.pl

Here, we are reporting a sensitive, simple and rapid method for the analysis of cyanidin chloride and PELARGONIDIN CHLORIDE (cas 134-04-3) anthocyanins in cherry, sour cherry, pomegranate and barberry produced in Iran. The analytes were extracted with acetonitrile-hydrochloric acid (1% v/v) mixture under optimized pretreatment conditions. Clean-up of the extract from fruits was conducted by magnetic solid phase extraction using salicylic acid functionalized silica-coated magnetite nanoparticles (SCMNPs) as the adsorbent. The optimized conditions searched with central composite design. Working under optimum conditions specified as: SCMNPs modified with salicylic acid, sorbent contact time and sample 10min, mechanical stirring time 57.3min.HPLC with UV-detection was used for determination of the analytes. The limit of detection, LOD, obtained for the two anthocyanins were 0.02 and 0.03μgg−1, respectively. The ranges of the spiked recoveries were 80.0–97.6 and 72.9–97.2%, with the relative standard deviations (RSD) of 2.1 and 2.5%, respectively.

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