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Elkady EF, Fouad MA, Mozayad AN. Application of Box-Behnken experimental design and response surface methodology for selecting the optimum RP-HPLC conditions for the simultaneous determination of methocarbamol, indomethacin and betamethasone in their pharmaceutical dosage form. BMC Chem 2022; 16:114. [PMID: 36510282 PMCID: PMC9743662 DOI: 10.1186/s13065-022-00908-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 11/29/2022] [Indexed: 12/14/2022] Open
Abstract
An isocratic RP-HPLC method has been developed for the separation and determination of methocarbamol (MTL), indomethacin (IND), and betamethasone (BET) in combined dosage form using an Inertsil ODS-3v C18 (250 × 4.6 mm, 5 μm) column with UV- detection at 235 nm. Experimental design using Box-Behnken design (BBD) was applied to study the response surface during method optimization and to achieve a good separation with a minimum number of experimental runs. The three independent parameters were pH of buffer, % of acetonitrile and flow rate of the mobile phase while the peak resolution of IND from MTL and the peak resolution of BET from IND (R2) were taken as responses to obtain mathematical models. The composite desirability was employed to optimize a set of responses overall (peak resolutions). The predicted optimum assay conditions include a mobile phase composition of acetonitrile and phosphate buffer (pH 5.95) in a ratio of 79:21, v/v, pumped at a flow rate of 1.4 mL min-1. With this ideal condition, the optimized method was able to achieve baseline separation of the three drugs with good resolution and a total run time of less than 7 min. The linearity of MTL, IND, and BET was determined in the concentration ranges of 5-600 µg mL- 1, 5-300 µg mL- 1, and 5-300 µg mL- 1 and the regression coefficients were 0.9994, 0.9998, and 0.9998, respectively. The average percent recoveries for the accuracy were determined to be 100.41 ± 0.60%, 100.86 ± 0.86%, and 100.99 ± 0.65% for MTL, IND, and BET, respectively. The R.S.D.% of the intra-day precision was found to be less than 1%, while the R.S.D.% of the inter-day precision was found to be less than 2%. The RP-HPLC method was fully validated with regard to linearity, accuracy, precision, specificity, and robustness as per ICH recommendations. The proposed method has various applications in quality control and routine analysis of the investigated drugs in their pharmaceutical dosage forms and laboratory-prepared mixtures with the goal of reducing laboratory waste, analysis time, and effort.
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Affiliation(s)
- Ehab F. Elkady
- grid.7776.10000 0004 0639 9286Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo, 11562 Egypt
| | - Marwa A. Fouad
- grid.7776.10000 0004 0639 9286Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo, 11562 Egypt ,grid.517528.c0000 0004 6020 2309Pharmaceutical Chemistry Department, School of Pharmacy, NewGiza University, Newgiza, km 22 Cairo– Alexandria Desert Road, Cairo, Egypt
| | - Ayoub N. Mozayad
- grid.412413.10000 0001 2299 4112Pharmaceutical Chemistry Department, Faculty of Pharmacy, Sana’a University, Sana’a, Yemen
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Development and Validation of a Novel HPLC Method for the Determination of Ephedrine Hydrochloride in Nasal Ointment. SEPARATIONS 2022. [DOI: 10.3390/separations9080198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A simple, precise, and cost-effective reverse phase ion pair chromatographic (RP-IP-HPLC) method was developed and validated for the determination of Ephedrine Hydrochloride in a nasal ointment. A simple and fast extraction protocol was developed for the effective recovery of the analyte, and for this purpose, Bromhexine Hydrochloride was used as the internal standard. The mobile phase consisted of MeOH, Sodium Lauryl Sulfate (SLS) 49.8 mM, triethylamine (ET3N) in the ratio of 65:34.6:0.4%, respectively, with pH = 2.20. The detection of the compounds was carried out at 206 nm, and we used a PDA detector. A short run time was achieved with retention times of 6.3 min and 9.8 min for ephedrine hydrochloride and the internal standard, respectively. The proposed method was validated according to ICH guidelines. Linearity was confirmed in the range of 50–150 μg/mL. Recoveries results were within the range of 98–102% and precision < 2% for the analyte in spiked blank matrix. Robustness testing was conducted via a fractional factorial experimental design. The method was found to fulfill the required specifications for specificity and stability for both standard solutions and samples, as well and applied to the determination of ephedrine hydrochloride in nasal ointments produced by the Greek Military Pharmaceutical Laboratories.
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Azevedo de Brito W, Gomes Dantas M, Andrade Nogueira FH, Ferreira da Silva-Júnior E, Xavier de Araújo-Júnior J, Aquino TMD, Adélia Nogueira Ribeiro Ê, da Silva Solon LG, Soares Aragão CF, Barreto Gomes AP. Development and Validation of HPLC-DAD and UHPLC-DAD Methods for the Simultaneous Determination of Guanylhydrazone Derivatives Employing a Factorial Design. Molecules 2017; 22:molecules22091394. [PMID: 28867762 PMCID: PMC6151785 DOI: 10.3390/molecules22091394] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 08/18/2017] [Indexed: 11/16/2022] Open
Abstract
Guanylhydrazones are molecules with great pharmacological potential in various therapeutic areas, including antitumoral activity. Factorial design is an excellent tool in the optimization of a chromatographic method, because it is possible quickly change factors such as temperature, mobile phase composition, mobile phase pH, column length, among others to establish the optimal conditions of analysis. The aim of the present work was to develop and validate a HPLC and UHPLC methods for the simultaneous determination of guanylhydrazones with anticancer activity employing experimental design. Precise, exact, linear and robust HPLC and UHPLC methods were developed and validated for the simultaneous quantification of the guanylhydrazones LQM10, LQM14, and LQM17. The UHPLC method was more economic, with a four times less solvent consumption, and 20 times less injection volume, what allowed better column performance. Comparing the empirical approach employed in the HPLC method development to the DoE approach employed in the UHPLC method development, we can conclude that the factorial design made the method development faster, more practical and rational. This resulted in methods that can be employed in the analysis, evaluation and quality control of these new synthetic guanylhydrazones.
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Affiliation(s)
- Wanessa Azevedo de Brito
- Drug Quality Control Laboratory (LCQMed), Pharmaceutical Sciences Department, Federal University of Rio Grande do Norte-UFRN, Av. General Cordeiro de Faria s/n, Natal RN 59012-570, Brazil.
| | - Monique Gomes Dantas
- Drug Quality Control Laboratory (LCQMed), Pharmaceutical Sciences Department, Federal University of Rio Grande do Norte-UFRN, Av. General Cordeiro de Faria s/n, Natal RN 59012-570, Brazil.
| | - Fernando Henrique Andrade Nogueira
- Drug Quality Control Laboratory (LCQMed), Pharmaceutical Sciences Department, Federal University of Rio Grande do Norte-UFRN, Av. General Cordeiro de Faria s/n, Natal RN 59012-570, Brazil.
| | - Edeildo Ferreira da Silva-Júnior
- Laboratory of Medicinal Chemistry, Nursing and Pharmacy School, Federal University of Alagoas, ESENFAR, Av. Lourival de Mello Motta s/n, Maceió AL 57072-970, Brazil.
| | - João Xavier de Araújo-Júnior
- Laboratory of Medicinal Chemistry, Nursing and Pharmacy School, Federal University of Alagoas, ESENFAR, Av. Lourival de Mello Motta s/n, Maceió AL 57072-970, Brazil.
| | - Thiago Mendonça de Aquino
- Laboratory of Medicinal Chemistry, Nursing and Pharmacy School, Federal University of Alagoas, ESENFAR, Av. Lourival de Mello Motta s/n, Maceió AL 57072-970, Brazil.
| | - Êurica Adélia Nogueira Ribeiro
- Laboratory of Medicinal Chemistry, Nursing and Pharmacy School, Federal University of Alagoas, ESENFAR, Av. Lourival de Mello Motta s/n, Maceió AL 57072-970, Brazil.
| | - Lilian Grace da Silva Solon
- Pharmaceutical Sciences Department, Federal University of Amapá-UNIFAP, Rod Juscelino Kubitschek, Km-02, Macapá AP 68903-419, Brazil.
| | - Cícero Flávio Soares Aragão
- Drug Quality Control Laboratory (LCQMed), Pharmaceutical Sciences Department, Federal University of Rio Grande do Norte-UFRN, Av. General Cordeiro de Faria s/n, Natal RN 59012-570, Brazil.
| | - Ana Paula Barreto Gomes
- Drug Quality Control Laboratory (LCQMed), Pharmaceutical Sciences Department, Federal University of Rio Grande do Norte-UFRN, Av. General Cordeiro de Faria s/n, Natal RN 59012-570, Brazil.
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