Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7702773 | Ultrasonics Sonochemistry | 2018 | 36 Pages |
Abstract
A simple procedure based on ultrasound-assisted (UA) dispersive micro solid phase extraction (D-μ-SPE) was applied for sorption of trace amount Allura Red (AR) in fruit juice and water samples. After loading process by UA-D-μ-SPE, the concentrated AR was eluted and monitored using high-performance liquid chromatography-ultraviolet -visible detector (HPLC-UV). The best operational conditions were obtained as follows: pHâ¯=â¯3.0, 8â¯mg of the sorbent, sonication time of 4.5â¯min and 0.16â¯mL of THF as elution solvent. Under the optimum operational conditions, the present method was acceptable for AR quantification in the range of 1.0-5000â¯ngâ¯mLâ1. The repeatability based on RSD with the amount of 1.67-3.18%, low LOD (0.198â¯ngâ¯mLâ1) and LOQ (0.659â¯ngâ¯mLâ1) were obtained. The UA-D-μ-SPE-HPLC-UV method was successfully applied for trace quantification of AR from water and commercial fruit juice samples supplied from local supermarkets, and acceptable relative recoveries over the range of 97.7-105.4% with RSDs â¤5.50% were obtained.
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Authors
Arash Asfaram, Mehrorang Ghaedi, Hassan Abidi, Hamedreza Javadian, Mohammad Zoladl, Fardin Sadeghfar,