Malaysian
Journal of Analytical Sciences Vol 22 No 3 (2018): 383 - 390
DOI:
10.17576/mjas-2018-2203-03
EXTRACTION
OF BISPHENOL A IN ENVIRONMENTAL WATER AND SOFT DRINK BY C18-IMPREGNATED
CELLULOSE TRIACETATE COMPOSITE FILM
(Pengekstrakan Bisfenol A dalam Air Alam Sekitar dan
Minuman Ringan Menggunakan Filem Komposit Selulosa Triasetat Berimpregnasikan C18)
Saw Hong Loh*, Ee
Ling Aw, Seok Wen Lee
School
of Marine and Environmental Sciences,
Universiti
Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
*Corresponding
author: lohsh@umt.edu.my
Received: 12
February 2018; Accepted: 29 April 2018
Abstract
Bisphenol
A (BPA) is an industrial chemical applied in making polycarbonate and epoxy
resin that commonly used as food containers, beverage cans and baby bottles.
BPA could be discharged into the environment from industrial waste and sewage
treatment plant which then causing adverse effects to aquatic organism and
consumers. Micro-solid phase extraction (µ-SPE) using C18-impregnated
cellulose triacetate (C18-CTA) composite film as the adsorbent films
coupled with high performance liquid chromatography–fluorescence detection
(HPLC-FD) has been developed for the determination of BPA in environmental
water and soft drink samples. Under the optimum extraction conditions, the
method showed excellent linearity in the range of 0.1 to 500 ppb with
correlation coefficient, r = 0.992. This method provided ultra-trace detection
limit of 0.004 ppb, trace quantification limit of 0.01 ppb and acceptable
relative recovery average in the range of 80.9 to 102.6% with relative standard
deviation ≤ 9.7%. The proposed microextraction method is simple, rapid and
eco-friendly as it consumes less amount of non-hazardous organic solvent.
Keywords: bisphenol A, C18, cellulose triacetate, film, micro-solid phase extraction, high performance
liquid chromatography
Abstrak
Bisfenol A (BPA) ialah suatu
bahan kimia industri yang digunakan dalam pembuatan polikarbonat dan resin
epoksi yang biasa digunakan sebagai bekas makanan, tin minuman dan botol bayi.
BPA boleh dilepaskan ke dalam alam sekitar daripada sisa industri dan loji
rawatan kumbahan yang kemudiannya menyebabkan kesan buruk kepada organisma
akuatik dan pengguna. Pengekstrakan mikro fasa pepejal (µ-SPE) menggunakan
filem komposit selulosa triasetat berimpregnasi C18 (C18-CTA)
sebagai filem penjerap berpasangan kromatografi cecair prestasi tinggi-pengesanan
pendarfluor (HPLC-FD) telah dibangunkan untuk penentuan BPA dalam sampel air
alam sekitar dan minuman ringan. Di bawah keadaan pengekstrakan optimum, kaedah
ini menunjukkan kelinearan yang cemerlang daripada kepekatan 0.1 hingga 500 ppb
dengan pekali korelasi, r = 0.992. Kaedah ini memberi had pengesanan ultra
rendah iaitu 0.004 ppb, had kuantifikasi rendah iaitu 0.01 ppb dan purata
pemulihan relatif yang boleh diterima dalam lingkungan 80.9 hingga 102.6%
dengan sisihan piawai relatif ≤ 9.7%. Pengekstrakan mikro yang dicadangkan
adalah bermanfaat daripada segi operasi mudah, cepat dan mesra alam kerana ia
menggunakan sedikit pelarut organik yang tidak berbahaya.
Kata kunci: bisfenol A, C18, selulosa
triasetat, filem, pengekstrakan mikro fasa pepejal, kromatografi cecair
prestasi tinggi
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