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Suryoprabowo S, Xu X, Kuang H, Liu L, Xu C. Methods for quantifying phenolphthalein in slimming tea. J Mater Chem B 2021; 9:3856-3862. [PMID: 33908585 DOI: 10.1039/d1tb00510c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Because of increasing levels of obesity and the development of social network platforms, the online sale of slimming beverages has become very common. However, such beverages are often reported to contain hazardous drugs, such as phenolphthalein. In the present study, we established a rapid and sensitive immunochromatography gold-labeled monoclonal antibody (mAb) (IGM) method and a fluorescence-labeled mAb (IFM) method for determining phenolphthalein in ten types of slimming tea. The monoclonal antibodies and coating antigens were produced in our laboratory. Under optimal conditions, the cut-off limits were 250 ng mL-1 (IFM strip) and 500 ng mL-1 (IGM strip) in both 0.01 M phosphate-buffered saline (PBS) and samples of slimming tea. The mean recoveries were 96.2 to 104.7% for the IGM strip and 90.7 to 104.7% for the IFM strip. The data showed that the IFM strip was more sensitive than the IGM strip and that results could be generated within 10 min. Consequently, this novel technique represents a rapid and convenient method with which to detect phenolphthalein.
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Affiliation(s)
- Steven Suryoprabowo
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China. and International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Xinxin Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China. and International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Hua Kuang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China. and International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Liqiang Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China. and International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Chuanlai Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China. and International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
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Shekari N, Vosough M, Tabar Heidar K. Chromatographic fingerprinting through chemometric techniques for herbal slimming pills: A way of adulterant identification. Forensic Sci Int 2018; 286:213-222. [DOI: 10.1016/j.forsciint.2018.03.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 03/06/2018] [Accepted: 03/10/2018] [Indexed: 10/17/2022]
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Pascali JP, Fais P, Vaiano F, Bertol E. Application of HRAM screening and LC–MS/MS confirmation of active pharmaceutical ingredient in “natural” herbal supplements. Forensic Sci Int 2018; 286:e28-e31. [DOI: 10.1016/j.forsciint.2018.03.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 03/04/2018] [Accepted: 03/08/2018] [Indexed: 02/02/2023]
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Akamatsu S, Mitsuhashi T. Simultaneous determination of pharmaceutical components in dietary supplements for weight loss by capillary electrophoresis tandem mass spectrometry. Drug Test Anal 2013; 6:426-33. [DOI: 10.1002/dta.1524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Revised: 07/04/2013] [Accepted: 07/13/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Shigeki Akamatsu
- Hyogo Prefectural Institute of Public Health and Consumer Sciences; 2-1-29, Arata-cho, Hyogo-ku; Kobe; 652-0032; Japan
| | - Takao Mitsuhashi
- Hyogo Prefectural Institute of Public Health and Consumer Sciences; 2-1-29, Arata-cho, Hyogo-ku; Kobe; 652-0032; Japan
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Kee CL, Lai CS, Ge X, Low MY, Ciolino LA. Partial conversion of methanol to formaldehyde in the gas chromatography injection port and reactivity with amines. J Chromatogr A 2012; 1257:158-70. [DOI: 10.1016/j.chroma.2012.08.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Revised: 07/31/2012] [Accepted: 08/03/2012] [Indexed: 11/29/2022]
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