In this work, a versatile and simple ultrasound-assisted
extraction (UAE) procedure, which provides high separation efficiency for
bisphenol A, was developed for its indirect determination in beverages in
contact with plastic containers by flame atomic absorption spectrometry (FAAS). The method is based on
charge transfer reaction, in which bisphenol A reacts with Cu(II) in alkaline
tartrate solutions of pH 8.0 to produce Cu(I), which reacts with ion-pairing
reagent, promethazine being a phenothiazine derivative (PMZ),
in presence of cetyltrimethylammonium bromide (CTAB). For the indirect determination of bisphenol A using FAAS,
the signal change of Cu(II) was investigated in detail depending on bisphenol A
concentration. At optimal conditions, the analytical features of the
method were obtained as follows; linear ranges of 1.5-100 µg L-1 for
direct aqueous calibration solutions and 3-125 µg L-1 for matrix
matched calibration solutions;the limits of detection and
quantification of 0.47 and 1.56 µg L-1; sensitivity enhancement and
preconcentration factors of 135 and 150, respectively. The validity of method was tested by
repeatability/reproducibility precision studies using standard addition method. As the last, the method was successfully applied to determination
of bisphenol A in selected samples.
Bisphenol A promethazine preconcentration beverage samples human health flame atomic absorption spectrometry
Konular | Mühendislik, Kimya Mühendisliği |
---|---|
Bölüm | Makaleler |
Yazarlar | |
Yayımlanma Tarihi | 12 Mayıs 2017 |
Gönderilme Tarihi | 28 Ocak 2017 |
Kabul Tarihi | 4 Mayıs 2017 |
Yayımlandığı Sayı | Yıl 2017 Cilt: 4 Sayı: 2 |