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Savic IM, Gajic IMS, Sibinovic PS. Simultaneous Spectrophotometric Quantification of Metamizole Sodium, Pitofenone Hydrochloride, and Fenpiverinium Bromide in a Pharmaceutical Product Using Multivariate Calibration Methods. ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1725541] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Ivan M. Savic
- Faculty of Technology, University of Nis, Leskovac, Republic of Serbia
| | | | - Predrag S. Sibinovic
- Pharmaceutical and Chemical Industry Zdravlje-Actavis, Leskovac, Republic of Serbia
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Silva TD, Toledo CR, Vianna-Soares CD. Development and validation of alternative methods by non-aqueous acid-base titration and derivative ultraviolet spectrophotometry for quantification of sildenafil in raw material and tablets. BRAZ J PHARM SCI 2017. [DOI: 10.1590/s2175-97902017000115181] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Separation and determination of impurities in paracetamol, codeine and pitophenone in the presence of fenpiverinium in combined suppository dosage form. J Pharm Biomed Anal 2014; 102:85-92. [PMID: 25255449 DOI: 10.1016/j.jpba.2014.09.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Revised: 08/27/2014] [Accepted: 09/01/2014] [Indexed: 02/05/2023]
Abstract
A new HPLC method for separation and determination of impurities in paracetamol, codeine phosphate hemihydrate and pitophenone hydrochloride in the presence of fenpiverinium bromide in combined suppository dosage form was developed and validated. The separation of paracetamol and its impurities 4-aminophenol, 4-nitrophenol, 4-chloracetanilid; codeine and its impurities methylcodeine, morphine, codeine dimer and 10-hydroxycodeine; pitophenone and its impurities 2-[4-[2-(1-piperidinyl)ethoxy]benzoyl] benzoic acid, 2-[4-[2-(1-piperidinyl)ethoxy]benzoyl]benzoic acid 2-(1-piperidinyl)-ethyl ester, methyl ester of 2-(4-hydroxybenzoyl) benzoic acid and fenpiverinium was achieved by using ion-pair reversed phase liquid chromatography with UV detection. Validation parameters such as the precision, accuracy, linearity, limit of detection (LOD), limit of quantification (LOQ) and robustness were verified for all the mentioned impurities of codeine phosphate hemihydrate and 4-aminophenol and 2-[4-[2-(1-piperidinyl)ethoxy]benzoyl] benzoic acid as the main degradation products of paracetamol and pitophenone hydrochloride, respectively. The described method was found to be useful for analysis of the stability samples and therefore suitable for routine purity testing of the drug product.
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Xiao N, Deng J, Huang K, Ju S, Hu C, Liang J. Application of derivative and derivative ratio spectrophotometry to simultaneous trace determination of rhodamine B and rhodamine 6G after dispersive liquid-liquid microextraction. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 128:312-8. [PMID: 24691361 DOI: 10.1016/j.saa.2014.02.180] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2013] [Revised: 02/21/2014] [Accepted: 02/24/2014] [Indexed: 05/27/2023]
Abstract
Two novel methods, first derivative spectrophotometric method ((1)D) and first derivative ratio spectrophotometric method ((1)DR), have been developed for the simultaneous trace determination of rhodamine B (RhB) and rhodamine 6G (Rh6G) in food samples after dispersive liquid-liquid microextraction (DLLME). The combination of derivative spectrophotometric techniques and DLLME procedure endows the presented methods with enhanced sensitivity and selectivity. Under optimum conditions, the linear calibration curves ranged from 5 to 450 ng mL(-1), with the correlation coefficients (r) of 0.9997 for RhB and 0.9977 for Rh6G by (1)D method, and 0.9987 for RhB and 0.9958 for Rh6G by (1)DR method, respectively. The calculated limits of detection (LODs) based on the variability of the blank solutions (S/N = 3 criterion) for 11 measurements were in the range of 0.48-1.93 ng mL(-1). The recoveries ranged from 88.1% to 111.6% (with RSD less than 4.4%) and 91.5-110.5% (with RSD less than 4.7%) for (1)D and (1)DR method, respectively. The influence of interfering substances such as foreign ions and food colorants which might be present in the food samples on the signals of RhB and Rh6G was examined. The developed methods have been successfully applied to the determination of RhB and Rh6G in black tea, red wine and chilli powder samples with the characteristics of simplicity, cost-effectiveness, environmental friendliness, and could be valuable for routine analysis.
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Affiliation(s)
- Ni Xiao
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan 421001, China
| | - Jian Deng
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan 421001, China.
| | - Kaihui Huang
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan 421001, China
| | - Saiqin Ju
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan 421001, China
| | - Canhui Hu
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan 421001, China
| | - Jun Liang
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan 421001, China
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Use of an immiscible diluent in ionic liquid / ion pair LC for the assay of an injectable analgesic. OPEN CHEM 2012. [DOI: 10.2478/s11532-012-0059-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AbstractInjectable solutions used in treatment of intense pain are based on combinations of active ingredients such as metamizole sodium (MTZ), pitofenone hydrochloride (PTF) and fenpiverine bromide (FPB). The simultaneous chromatographic assay of such combinations poses difficulties due to their structural variety, highly polar character, and wide concentration ranges (500 mg mL−1 for MTZ, 2 mg mL−1 for PTF and 0.02 mg mL−1 for FPB). Fast hydrolysis of MTZ on aqueous dilution causes additional problems due to impurity (MTC) formation. Sodium hexane sulphonate (10 mM) was used as ion pairing agent for PTF, FPB and MTC in a mobile phase consisting of 48/52 (v/v) methanol and aqueous 0.2% triethylamine at pH=3. The ionic liquid 1-butyl-1-methyl-pyrrolidinium tetrafluoroborate (10 mM) was used as mobile phase additive to preserve the MTZ peak symmetry. The minor active ingredient FPB was selectively extracted into 1-octanol by ion pair formation with picric acid. A 20 µL aliquot of the organic layer was directly injected into the column.
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Pradana Pérez JA, Durand Alegría JS, Hernando PF, Sierra AN. Determination of dipyrone in pharmaceutical preparations based on the chemiluminescent reaction of the quinolinic hydrazide-H2O2-vanadium(IV) system and flow-injection analysis. LUMINESCENCE 2011; 27:45-50. [DOI: 10.1002/bio.1323] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2011] [Revised: 04/27/2011] [Accepted: 05/02/2011] [Indexed: 11/10/2022]
Affiliation(s)
- Juan A. Pradana Pérez
- Departamento de Ciencias Analíticas, Facultad de Ciencias; Universidad Nacional de Educación a Distancia; Madrid; Spain
| | - Jesús S. Durand Alegría
- Departamento de Ciencias Analíticas, Facultad de Ciencias; Universidad Nacional de Educación a Distancia; Madrid; Spain
| | - Pilar Fernández Hernando
- Departamento de Ciencias Analíticas, Facultad de Ciencias; Universidad Nacional de Educación a Distancia; Madrid; Spain
| | - Adolfo Narros Sierra
- Departamento de Ingeniería Química Industrial y del Medio Ambiente, Escuela Técnica Superior de Ingenieros Industriales; Universidad Politécnica de Madrid; Spain
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Herrera OS, Nieto JD, Olleta AC, Lane SI. The photoinduced reaction of 2-iodothiophene in solutions of n-heptane, dichloromethane and methanol. J PHYS ORG CHEM 2010. [DOI: 10.1002/poc.1769] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Dias CL, Bergold AM, Fröehlich PE. UV-Derivative Spectrophotometric Determination of Ritonavir Capsules and Comparison with LC Method. ANAL LETT 2009. [DOI: 10.1080/00032710903060701] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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WEINERT PL, FERNANDES JR, PEZZA L, PEZZA HR. Flow-Injection Spectrophotometric Determination of Novalgin in Pharmaceuticals Using Micellar Medium. ANAL SCI 2007; 23:1383-9. [DOI: 10.2116/analsci.23.1383] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Culzoni MJ, De Zan MM, Robles JC, Mantovani VE, Goicoechea HC. Chemometrics-assisted UV-spectroscopic strategies for the determination of theophylline in syrups. J Pharm Biomed Anal 2005; 39:1068-74. [PMID: 16039085 DOI: 10.1016/j.jpba.2005.06.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2005] [Revised: 06/09/2005] [Accepted: 06/10/2005] [Indexed: 11/15/2022]
Abstract
Two spectrophotometric methods, assisted by chemometric tools, were developed for the determination of theophylline in syrups: derivative spectroscopy (DS) and partial least-squares regression (PLS), the latter using both artificial and natural calibration sets. HPLC technique was employed to apply a reference method in order to achieve a complete assessment of performance. Calibrations presented excellent analytical figures of merits (i.e. LOD ranged from 0.03 to 0.4 mg L(-1) and analytical sensitivity ranged from 1.7 to 8.3 L mg(-1)). The intermediate precision presented pooled coefficients of variation ranged between 0.54 and 1.08%. Accuracy was studied trough an elliptical joint confidence region test (EJCR) comparing the obtained values when analysing spiked real samples by the HPLC and the studied methodologies. Both studied methods can be considered acceptable for the pharmaceutical quality assurance of theophylline in syrup samples.
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Affiliation(s)
- María J Culzoni
- Laboratorio de Control de Calidad de Medicamentos, Cátedra de Química Analítica I, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, S3000ZAA Santa Fe, Argentina
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Millership JS, Parker C, Donnelly D. Ratio spectra derivative spectrophotometry for the determination of furosemide and spironolactone in a capsule formulation. ACTA ACUST UNITED AC 2005; 60:333-8. [PMID: 15848209 DOI: 10.1016/j.farmac.2005.02.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2004] [Accepted: 02/01/2005] [Indexed: 10/25/2022]
Abstract
The determination of furosemide and spironolactone in a capsule formulation has been investigated using techniques such as Vierordt's method and derivative spectroscopy dA/d lambda and d2A/d lambda2 applying the zero-crossing technique following reported methods. In our hands, using standard mixtures, these methods gave unreliable results. We have therefore investigated the use of ratio spectra derivative spectrophotometry for this determination. The technique of ratio spectra derivative spectrophotometry was developed in 1990, and has recently been used for a number of analyses of co-formulated products. The method was applied to the analysis of standard mixtures of the two drugs and the combined contents of 20 capsules resulting in values (mean +/- standard deviation) of 102.1 +/- 1.9% and 101.4 +/- 4.0% of the stated content for furosemide and spironolactone, respectively. Similarly, the analysis of individual capsules resulted in values of 101.5 +/- 1.6% and 102.2 +/- 1.4% of the stated content for furosemide and spironolactone, respectively.
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Affiliation(s)
- J S Millership
- Clinical and Practice Research Group School of Pharmacy Queen's University, Belfast Medical Biology Centre, 97 Lisburn Road Belfast BT9 7BL, Northern Ireland.
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Barcia E, Martin A, Azuara ML, Negro S. Influence of Medium and Temperature on the Hydrolysis Kinetics of Propacetamol Hydrochloride: Determination Using Derivative Spectrophotometry. Chem Pharm Bull (Tokyo) 2005; 53:277-80. [PMID: 15744097 DOI: 10.1248/cpb.53.277] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Propacetamol hydrochloride (PRO) is a water-soluble prodrug of paracetamol (PA) which can be parenterally administered as analgesic for the treatment of postoperative pain, acute trauma, and gastric and/or intestinal disorders where oral administration is not possible. In these circumstances, PRO can be administered in physiologic or glucose solutions since it is rapidly and quantitatively hydrolyzed into PA by plasma estearases. We have studied the degradation kinetics of PRO in 5% glucose and 0.9% saline solutions at 4 degrees C and 25 degrees C (storage and room temperatures, respectively). The analytic technique used to determine PRO and PA quantitatively was first-derivative spectrophotometry. The degradation process of PRO can be best fitted to a second-order kinetics with independence of the medium used (saline or glucose solution). The hydrolysis kinetics of PRO conversion into PA depends on the temperature but not on the assay medium (saline or glucose solution). The degradation rate constants obtained for PRO were approximately 4.5 times higher at 25 degrees C than at 4 degrees C. The values of t(90%) for PRO were 3.17 h and 3.61 h at 25 degrees C, and 13.42 h and 12.36 h at 4 degrees C when the tests were performed in 5% glucose and 0.9% saline solutions, respectively.
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Affiliation(s)
- Emilia Barcia
- Department of Pharmaceutics, University Complutense of Madrid, School of Pharmacy, Spain.
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El-Sayed AAY, El-Salem NA. Recent Developments of Derivative Spectrophotometry and Their Analytical Applications. ANAL SCI 2005; 21:595-614. [PMID: 15984192 DOI: 10.2116/analsci.21.595] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Articles about the development of derivative spectrophotometric methods and analytical applications of derivative spectrophotometry (DS) published in the last nine years (since 1994) are reviewed.
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Affiliation(s)
- Abdel-Aziz Y El-Sayed
- Department of Chemistry, Faculty of Science, Al-Azhar University (Assiut Branch), Assiut, Egypt.
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Bosch Ojeda C, Sanchez Rojas F. Recent developments in derivative ultraviolet/visible absorption spectrophotometry. Anal Chim Acta 2004. [DOI: 10.1016/j.aca.2004.05.036] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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