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Cunha FC, de Holanda RC, Secchi AR, de Souza MB, Barreto AG. Simultaneous absorption of UV-vis and circular dichroism to measure enantiomeric concentrations of praziquantel under nonlinear conditions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 241:118645. [PMID: 32652288 DOI: 10.1016/j.saa.2020.118645] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 06/21/2020] [Accepted: 06/21/2020] [Indexed: 06/11/2023]
Abstract
Beer-Lambert-Bouguer law is for a limiting case and, therefore, it is not useful to describe the relationship between absorption signal and enantiomer concentration in a stream when there are nonlinear phenomena present. In this work, the Chiral Detector (CD-2095 JASCO) equipment was used to measure simultaneously the UV-Vis and circular dichroism (CD) signals of a stream with different compositions of praziquantel enantiomers. The tested models were calibrated (parameter estimation) and validated using the Leave-One-Out Cross Validation (LOOCV) method. Both UV-vis and CD signals were absorbed differently in mixtures in comparison to pure solutions, indicating a nonlinear relationship between the absorbed signal and the enantiomer concentration in a mixture stream. Empirical mathematical relationships were tested for each signal (UV-vis and CD) and the pair of equations was evaluated using the Mean Square Error (MSE) metric for each enantiomer concentration (MSEL and MSED) and the pair of equations with the smallest MSEt (=MSEL + MSED) metric was chosen. Confidence interval analysis helped to find even simpler equations in comparison to the chosen ones. Higher nonlinearity was observed for a mixture with low L-PZQ concentration. The developed methodology allowed the choice of an empiric model to give good predictions in a wide range of concentration, what is of utmost importance for monitoring and automatic control purposes, for instance.
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Affiliation(s)
- F C Cunha
- PEQ/COPPE, Universidade Federal do Rio de Janeiro, Centro de Tecnologia, bloco G, sala 115, Cidade Universitária, Rio de Janeiro CEP 21.941-972, Brazil.
| | - R C de Holanda
- DEQ/EQ, Universidade Federal do Rio de Janeiro, Centro de Tecnologia, bloco E, sala 209, Cidade Universitária, Rio de Janeiro CEP 21.941-972, Brazil
| | - A R Secchi
- PEQ/COPPE, Universidade Federal do Rio de Janeiro, Centro de Tecnologia, bloco G, sala 115, Cidade Universitária, Rio de Janeiro CEP 21.941-972, Brazil; DEQ/EQ, Universidade Federal do Rio de Janeiro, Centro de Tecnologia, bloco E, sala 209, Cidade Universitária, Rio de Janeiro CEP 21.941-972, Brazil
| | - M B de Souza
- PEQ/COPPE, Universidade Federal do Rio de Janeiro, Centro de Tecnologia, bloco G, sala 115, Cidade Universitária, Rio de Janeiro CEP 21.941-972, Brazil; DEQ/EQ, Universidade Federal do Rio de Janeiro, Centro de Tecnologia, bloco E, sala 209, Cidade Universitária, Rio de Janeiro CEP 21.941-972, Brazil
| | - A G Barreto
- DEQ/EQ, Universidade Federal do Rio de Janeiro, Centro de Tecnologia, bloco E, sala 209, Cidade Universitária, Rio de Janeiro CEP 21.941-972, Brazil
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Xu Y, Hong T, Chen X, Ji Y. Affinity capillary electrophoresis and fluorescence spectroscopy for studying enantioselective interactions between omeprazole enantiomer and human serum albumin. Electrophoresis 2017; 38:1366-1373. [DOI: 10.1002/elps.201600375] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 02/10/2017] [Accepted: 02/13/2017] [Indexed: 12/19/2022]
Affiliation(s)
- Yujing Xu
- Department of Analytical Chemistry; P.R. China Pharmaceutical University; Nanjing P.R. China
- Key Laboratory of Drug Quality Control and Pharmacovigilance; Ministry of Education; Nanjing P.R. China
| | - Tingting Hong
- Department of Analytical Chemistry; P.R. China Pharmaceutical University; Nanjing P.R. China
- Key Laboratory of Drug Quality Control and Pharmacovigilance; Ministry of Education; Nanjing P.R. China
| | - Xueping Chen
- Department of Analytical Chemistry; P.R. China Pharmaceutical University; Nanjing P.R. China
- Key Laboratory of Drug Quality Control and Pharmacovigilance; Ministry of Education; Nanjing P.R. China
| | - Yibing Ji
- Department of Analytical Chemistry; P.R. China Pharmaceutical University; Nanjing P.R. China
- Key Laboratory of Drug Quality Control and Pharmacovigilance; Ministry of Education; Nanjing P.R. China
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Perna RF, Cremasco MA, Santana CC. CHROMATOGRAPHIC SEPARATION OF VERAPAMIL RACEMATE USING A VARICOL CONTINUOUS MULTICOLUMN PROCESS. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2015. [DOI: 10.1590/0104-6632.20150324s00003692] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- R. F. Perna
- University of Campinas, Brazil; Federal University of Alfenas, Brazil
| | | | - C. C. Santana
- University of Campinas, Brazil; Tiradentes University, Brazil
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Strategy Approach for Direct Enantioseparation of Hyoscyamine Sulfate and Zopiclone on a Chiral αl
-Acid Glycoprotein Column and Determination of Their Eutomers: Thermodynamic Study of Complexation. Chirality 2015; 28:49-57. [DOI: 10.1002/chir.22536] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2015] [Revised: 08/08/2015] [Accepted: 08/27/2015] [Indexed: 11/07/2022]
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Nageswara Rao R, Nagesh Kumar K. Thermodynamic Evaluation of Immobilized Cellulose Tris(3,5-Dichlorophenylcarbamate) as a Stationary Phase for Liquid Chromatographic Separation of Darunavir Enantiomers. J Chromatogr Sci 2014; 53:295-301. [DOI: 10.1093/chromsci/bmu057] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Kwon HJ, Choi SH, Yoo CS, Choi HY, Lee SE, Park YD. Development of an analytical method for yam saponins using HPLC with pulsed amperometric detection at different column temperatures. J Sep Sci 2013; 36:690-8. [DOI: 10.1002/jssc.201200756] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Revised: 10/16/2012] [Accepted: 10/24/2012] [Indexed: 11/08/2022]
Affiliation(s)
- Ha-Jeong Kwon
- Department of Preventive and Social Dentistry; Graduate School; Kyung Hee University; Hoegi-dong, Dongdaemoon-gu; Seoul South Korea
| | - Seung-Hee Choi
- Department of Preventive and Social Dentistry; Graduate School; Kyung Hee University; Hoegi-dong, Dongdaemoon-gu; Seoul South Korea
| | - Chang-Seon Yoo
- Department of Preventive and Social Dentistry; Graduate School; Kyung Hee University; Hoegi-dong, Dongdaemoon-gu; Seoul South Korea
| | - Hwa-Young Choi
- Department of Oral and maxillofacial Radiology; Graduate School; Kyung Hee University; Hoegi-dong, Dongdaemoon-gu; Seoul South Korea
| | - Soo-Eon Lee
- Department of Pediatric Dentistry; School of Dentistry; Kyung Hee University; Seoul Korea
| | - Yong-Duk Park
- Department of Preventive and Social Dentistry; Graduate School; Kyung Hee University; Hoegi-dong, Dongdaemoon-gu; Seoul South Korea
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Nascimento AC, Perna RF, Cremasco MA, Santana CC. Enantioseparation of Secnidazole by High-Performance Liquid Chromatography Using Amylose-Based Stationary Phase. ADSORPT SCI TECHNOL 2012. [DOI: 10.1260/0263-6174.30.8-9.739] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Ana C. Nascimento
- School of Chemical Engineering, University of Campinas (UNICAMP), Albert Einstein Avenue, 500, Campinas 13083-852, São Paulo, Brazil
| | - Rafael F. Perna
- School of Chemical Engineering, University of Campinas (UNICAMP), Albert Einstein Avenue, 500, Campinas 13083-852, São Paulo, Brazil
| | - Marco A. Cremasco
- School of Chemical Engineering, University of Campinas (UNICAMP), Albert Einstein Avenue, 500, Campinas 13083-852, São Paulo, Brazil
| | - Cesar C. Santana
- School of Chemical Engineering, University of Campinas (UNICAMP), Albert Einstein Avenue, 500, Campinas 13083-852, São Paulo, Brazil
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Călinescu O, Badea IA, Vlădescu L, Meltzer V, Pincu E. HPLC separation of acetaminophen and its impurities using a mixed-mode reversed-phase/cation exchange stationary phase. J Chromatogr Sci 2012; 50:335-42. [PMID: 22407344 DOI: 10.1093/chromsci/bmr043] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Determination of acetaminophen and its main impurities: 4-nitrophenol, 4'-chloroacetanilide, as well as 4-aminophenol and its degradation products, p-benzoquinone and hydroquinone has been developed and validated by a new high-performance liquid chromatography method. Chromatographic separation has been obtained on a Hypersil Duet C18/SCX column, using gradient elution, with a mixture of phosphate buffer (pH = 4.88) and methanol as a mobile phase. Analysis time did not exceed 14.5 min and good resolutions, peak shapes and asymmetries have resulted. The linearity of the method has been tested in the range of 5.0-60 µg/mL for acetaminophen and 0.5-6 µg/mL for the other compounds. The limits of detection and quantification have been also established to be lower than 0.1 µg/mL and 0.5 µg/mL, respectively. The method has been successfully applied for the analysis of commercial acetaminophen preparations.
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Affiliation(s)
- Octavian Călinescu
- Department of Analytical Chemistry, Faculty of Chemistry, University of Bucharest, Bucharest, Romania
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Zhang Y, Bai S, Song B, Bhadury PS, Hu D, Yang S, Zhang X, Fan H, Lu P. Enantioseparation and plant virucidal bioactivity of new quinazoline derivatives with α-aminophosphonate moiety. J Chromatogr B Analyt Technol Biomed Life Sci 2010; 878:1285-9. [DOI: 10.1016/j.jchromb.2009.11.024] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2009] [Revised: 11/11/2009] [Accepted: 11/12/2009] [Indexed: 11/27/2022]
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10
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Al-Badr AA. Omeprazole. PROFILES OF DRUG SUBSTANCES, EXCIPIENTS, AND RELATED METHODOLOGY 2010; 35:151-262. [PMID: 22469222 DOI: 10.1016/s1871-5125(10)35004-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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Weng W, Guo H, Zhan F, Fang H, Wang Q, Yao B, Li S. Chromatographic enantioseparations of binaphthyl compounds on an immobilized polysaccharide-based chiral stationary phase. J Chromatogr A 2008; 1210:178-84. [DOI: 10.1016/j.chroma.2008.09.048] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2008] [Revised: 09/14/2008] [Accepted: 09/15/2008] [Indexed: 11/28/2022]
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12
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Hiriyanna SG, Basavaiah K, Dhayanithi V, Pati HN. Chiral Separation of Carboprost Isomers by Normal Phase LC Using Amylose Chiral Stationary Phase. Chromatographia 2008. [DOI: 10.1365/s10337-008-0742-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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13
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Mayani VJ, Abdi S, Kureshy R, Khan N, Agrawal S, Jasra R. Synthesis and characterization of mesoporous silica modified with chiral auxiliaries for their potential application as chiral stationary phase. J Chromatogr A 2008; 1191:223-30. [DOI: 10.1016/j.chroma.2008.02.041] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2007] [Revised: 02/07/2008] [Accepted: 02/13/2008] [Indexed: 11/17/2022]
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