2012 ©
Journal Publication
Title of Article Determination of b-carotene and total carotenoids in fruit juices using surfactant surface decorated graphene oxide based ultrasound-assisted dispersive solid-phase microextraction 
Date of Acceptance 22 June 2018 
     Title of Journal Analytical Methods 
     Standard ISI 
     Institute of Journal the royal socity of chemistry 
     ISBN/ISSN 1759-9679 
     Month -
     Year of Publication 2018 
     Abstract In this study, the influence of surfactants (SDS, TX100 and CTAB) to modify surface polarity of graphene oxide adsorbent is proposed for the extraction of b-carotene and total carotenoids from fruit juice samples. Under the optimum conditions based on simultaneous ultrasound-assisted surfactant surface decorated graphene oxide and ultrasound-assisted dispersive solid-phase microextraction (UAD-SPME) prior to UV-vis spectrophotometry and HPLC, the calibration curve was in the range of 1.0–6.0 mg L1 (R2 ¼ 0.9999), the limit of detection was 0.04 mg L1 and the limit of quantification was 0.12 mg L1. The relative standard deviations were 1.98% and 2.38% for intra-day and inter-day analysis, respectively. For real sample analysis, the contents of total carotenoids were found in the range of 2.37–65.02 mg bcarotene per L, while that of b-carotene analyzed by HPLC was rather reasonable (0.37–46.82 mg L1). The recovery tests yielded satisfactory results, ranging between 93.00% and 109.5%. Therefore, the developed method is a green way for the UAD-SPME of b-carotene and total carotenoids from fruit juices. 
     Keyword Ultrasound-assisted surfactant surface decorated graphene oxide; ultrasound-assisted dispersive solid phase microextraction; β-carotene; carotenoid; surfactants; fruit juice 
575020022-5 Mr. CHINAWOOTH SAKAEW [Main Author]
Science Master's Degree
Science Doctoral Degree
Science Doctoral Degree

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