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Guo P, Xu M, Zhong F, Liu C, Cui X, Zhang J, Zhao M, Yang Z, Jia L, Yang C, Xue W, Fan D. Molecularly imprinted solid-phase extraction combined with non-ionic hydrophobic deep eutectic solvents dispersed liquid-liquid microextraction for efficient enrichment and determination of the estrogens in serum samples. Talanta 2024; 269:125480. [PMID: 38039681 DOI: 10.1016/j.talanta.2023.125480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 11/16/2023] [Accepted: 11/23/2023] [Indexed: 12/03/2023]
Abstract
Hormonal drugs in biological samples are usually in low concentration and highly intrusive. It is of great significance to enhance the sensitivity and specificity of the detection process of hormone drugs in biological samples by utilizing appropriate sample pretreatment methods for the detection of hormone drugs. In this study, a sample pretreatment method was developed to effectively enrich estrogens in serum samples by combining molecularly imprinted solid-phase extraction, which has high specificity, and non-ionic hydrophobic deep eutectic solvent-dispersive liquid-liquid microextraction, which has a high enrichment ability. The theoretical basis for the effective enrichment of estrogens by non-ionic hydrophobic deep eutectic solvent was also computed by simulation. The results showed that the combination of molecularly imprinted solid-phase extraction and deep eutectic solvent-dispersive liquid-liquid microextraction could improve the sensitivity of HPLC by 33∼125 folds, and at the same time effectively reduce the interference. In addition, the non-ionic hydrophobic deep eutectic solvent has a relatively low solvation energy for estrogen and possesses a surface charge similar to that of estrogen, and thus can effectively enrich estrogen. The study provides ideas and methods for the extraction and determination of low-concentration drugs in biological samples and also provides a theoretical basis for the application of non-ionic hydrophobic deep eutectic solvent extraction.
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Affiliation(s)
- Pengqi Guo
- School of Chemical Engineering, Northwest University, Xi'an, PR China; Engineering Research Center of Western Resource Innovation Medicine Green Intelligent Manufacturing, Ministry of Education of the People's Republic of China, PR China.
| | - Mingyang Xu
- School of Chemical Engineering, Northwest University, Xi'an, PR China
| | - Fanru Zhong
- School of Chemical Engineering, Northwest University, Xi'an, PR China
| | - Chenming Liu
- School of Chemical Engineering, Northwest University, Xi'an, PR China
| | - Xia Cui
- Department of Pharmacy, Shaanxi Provincial People's Hospital, Xi'an, PR China
| | - Jing Zhang
- School of Chemical Engineering, Northwest University, Xi'an, PR China
| | - Min Zhao
- School of Chemical Engineering, Northwest University, Xi'an, PR China
| | - Ziwei Yang
- School of Chemical Engineering, Northwest University, Xi'an, PR China
| | - Liru Jia
- School of Chemical Engineering, Northwest University, Xi'an, PR China
| | - Chuanming Yang
- School of Chemical Engineering, Northwest University, Xi'an, PR China
| | - Weiming Xue
- School of Chemical Engineering, Northwest University, Xi'an, PR China; Engineering Research Center of Western Resource Innovation Medicine Green Intelligent Manufacturing, Ministry of Education of the People's Republic of China, PR China
| | - Daidi Fan
- School of Chemical Engineering, Northwest University, Xi'an, PR China; Engineering Research Center of Western Resource Innovation Medicine Green Intelligent Manufacturing, Ministry of Education of the People's Republic of China, PR China.
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Kaneko H, Matsuoka H, Ishige T, Kobayashi H, Higashi T. Derivatization procedure of estradiol with a combination of MPDNP-F and 4-dimethylaminopyridine to generate product ion containing estradiol-skeleton for reliable determination of its serum/plasma concentrations by LC/ESI-MS/MS. Anal Bioanal Chem 2024; 416:597-608. [PMID: 38082136 PMCID: PMC10761386 DOI: 10.1007/s00216-023-05069-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/15/2023] [Accepted: 11/22/2023] [Indexed: 01/04/2024]
Abstract
The quantification of serum/plasma estradiol (E2) is useful for the diagnosis, pathological analysis, and monitoring of the therapeutic efficacy of estrogen-dependent diseases. In this study, an improved derivatization method using 1-(2,4-dinitro-5-fluorophenyl)-4,4-dimethylpiperazinium iodide (MPDNP-F) was developed and combined with liquid chromatography/electrospray ionization-tandem mass spectrometry (LC/ESI-MS/MS) for the sensitive and specific quantification of the serum/plasma E2. In the new method, the reaction time was reduced to 15 min from 90 min (two-step reaction in the previous method) by the direct reaction of MPDNP-F with E2 at 60°C in the presence of 4-dimethylaminopyridine (DMAP). DMAP served as the organic catalyst and had a less negative effect on the LC/ESI-MS/MS instrument compared to the non-volatile inorganic salt (NaHCO3), which was used in the previous method. The collision-induced dissociation of the molecular cation ([M]+) of the resulting derivative provided a product ion containing the E2-skeleton ([M-NO2-H]+), which significantly enhanced the assay sensitivity and specificity; compared to the dansyl chloride derivatization, which is the currently most-used derivatization procedure for the LC/ESI-MS/MS assays of E2, the MPDNP-F derivatization had significantly fewer interfering peaks and a clear and flat baseline in the serum sample analysis. The MPDNP-F derivatization-LC/ESI-MS/MS method enabled the precise and accurate quantification of E2 even at a 5.0 pg/mL concentration (lower limit of quantification) with a small sample volume (100 μL of serum/plasma) and had a tolerance for the matrix effect. This method was also proven to serve as a more sensitive and specific alternative to the clinically used chemiluminescence enzyme immunoassay.
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Affiliation(s)
- Honoka Kaneko
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Yamazaki, Noda, 2641, Chiba, Japan
| | - Hiroki Matsuoka
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Yamazaki, Noda, 2641, Chiba, Japan
| | - Takayuki Ishige
- Division of Laboratory Medicine, Chiba University Hospital, 1-8-1 Inohana, Chuo, Chiba, 260-8677, Japan
| | - Hironori Kobayashi
- Clinical Laboratory Division, Shimane University Hospital, 89-1, Enya-cho, Izumo, Shimane, 693-8501, Japan
| | - Tatsuya Higashi
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Yamazaki, Noda, 2641, Chiba, Japan.
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