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Application of Simultaneous Analytical Methods for Selective Androgen Receptor Modulator Adulterated in Dietary Supplements Advertised as Muscle Strengthening Using UHPLC-PDA and LC–ESI–MS/MS

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Abstract

Recently, the selective androgen receptor modulators (SARMs) have been popular among athletes due to their muscle strengthening effects. However, it has been often reported that the unauthorized compounds like SARMs were illegally adulterated in dietary supplements and were misused to improve their pharmacological efficacies. To analyse and reconfirm the SARMs adulterated in dietary supplements, we developed and optimised a rapid and accurate method to measure 18 SARMs simultaneously using an ultra-high-performance liquid chromatography system equipped with a photodiode array detector and liquid chromatography-electrospray ionization-tandem mass spectrometry. The simultaneous methods were validated to fully meet the international guidelines by determining the limit of detection, limit of quantification, method detection limit, method quantitation limit, specificity, linearity, precision, accuracy, recovery, stability, and matrix effect. In addition, the validated methods were used for application to 75 real samples containing dietary supplements and seized samples. On screening 18 compounds, a total 10 SARMs (MK-677, YK-11, etc.) were detected in 25 seized hard capsule samples by comparing the UHPLC-PDA and LC–ESI–MS/MS. In addition, the concentrations of adulterants in seized hard capsule samples ranged from minimum at 2.14 µg g−1 of LGD-4033 and maximum at 71,989 µg g−1 of andarine. The established simultaneous analysis method could help to investigate the unauthorized compounds adulterated in various types of dietary supplement.

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Data availability statement

The data that support the findings of this study are available in the supplementary material of this article.

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Funding

This study was supported by a Grant [No. 21201MFDS306] of Ministry of Food and Drug Safety of Korea in 2021.

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Correspondence to Sun Young Baek.

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Kim, N.S., Choi, H.S., Lim, N.Y. et al. Application of Simultaneous Analytical Methods for Selective Androgen Receptor Modulator Adulterated in Dietary Supplements Advertised as Muscle Strengthening Using UHPLC-PDA and LC–ESI–MS/MS. Chromatographia 85, 895–919 (2022). https://doi.org/10.1007/s10337-022-04170-y

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