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Exposure of bisphenol A in breast cancer patients—quantitatively assessed by sensitivity‐enhanced high‐performance liquid chromatography coupled with fluorescence detection: A case–control study
Author(s) -
Muthusamy Sivaselvakumar,
Palanisamy Susipriya,
Ramalingam Sudha
Publication year - 2021
Publication title -
biomedical chromatography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 65
eISSN - 1099-0801
pISSN - 0269-3879
DOI - 10.1002/bmc.5137
Subject(s) - chromatography , chemistry , analyte , high performance liquid chromatography , bisphenol a , urine , extraction (chemistry) , sample preparation , detection limit , biochemistry , organic chemistry , epoxy
A simple, reproducible and sensitive liquid chromatography (HPLC) method has been developed and validated for estimation of bisphenol A (BPA) in human urine. A simple liquid–liquid extraction technique was used in BPA sample preparation. The analyte was chromatographed on a Shimadzu Prominence HPLC system using isocratic mobile phase conditions at a flow rate of 0.500 ml/min and a Hypersil Gold C 18 column maintained at 40°C. Quantification was performed on a fluorescence detector set at excitation 275 nm, emission 313 nm and bisphenol B was used as internal standard. The total run time was 8 min. The method was found to have acceptable sensitivity, selectivity, accuracy (98.82–103.64%), precision (1.17–5.36) and stability in the validation experiment carried out as per the USFDA guidelines. The method sensitivity was as low as 0.50 ng/ml. The applicability of the validated analytical method was established in human patient urine samples. The mean human urine BPA concentrations were 1.18 ± 2.11 ng/ml in the control group and 5.76 ± 6.00 ng/ml in the patient group ( P < 0.001). Therefore, this method could be considered as an alternative for routine bio‐monitoring of BPA which is less expensive and feasible in resource‐poor settings.