METHOD DEVELOPMENT AND VALIDATION OF TIVOZANIB BY USING RP-HPLC IN BULK AND PHARMACEUTICAL DOSAGE FORM

Objective: The current investigation was pointed at developing and progressively validating novel, simple, responsive and stable RP-HPLC method for the measurement of active pharmaceutical ingredient of Tivozanib. Methods: A simple, selective, validated and well-defined stability that shows isocratic RP-HPLC methodology for the quantitative determination of Tivozanib. The chromatographic strategy utilized X-bridge phenyl column of dimensions 150x4.6 mm, 3.5 micron, using isocratic elution with a mobile phase of acetonitrile and 0.1 percent formic acid (50:50). A flow rate of 1 ml/min and a detector wavelength of 216 nm utilizing the PDA detector were given in the instrumental settings. Validation of the proposed method was carried out according to an international conference on harmonization (ICH) guidelines. Results: LOD and LOQ for the two active ingredients were established with respect to test concentration. The calibration charts plotted were linear with a regression coefficient of R2>0.999, means the linearity was within the limit. Recovery, specificity, linearity, accuracy, robustness, ruggedness were determined as a part of method validation and the results were found to be within the acceptable range. Conclusion: The proposed method to be fast, simple, feasible and affordable in assay condition. During stability tests, it can be used for routine analysis of the selected drugs.

Chemical Composition, Anti-Quorum Sensing, Enzyme Inhibitory, and Antioxidant Properties of Phenolic Extracts of Clinopodium nepeta L. Kuntze

Phenolic extracts of Clinopodium nepeta were prepared and their preliminary phenolic profiles determined using HPLC-DAD with 26 phenolic standards. Apigenin (21.75 ± 0.41 µg/g), myricetin (72.58 ± 0.57 µg/g), and rosmarinic acid (88.51 ± 0.55 µg/g) were the most abundant compounds in DCM (dichloromethane), AcOEt (ethyl acetate), and BuOH (butanol) extracts, respectively. The DCM and AcOEt extracts inhibited quorum-sensing mediated violacein production by C. violaceum CV12472. Anti-quorum-sensing zones on C. violaceum CV026 at MIC (minimal inhibitory concentration) were 10.3 ± 0.8 mm for DCM extract and 12.0 ± 0.5 mm for AcOEt extract. Extracts showed concentration-dependent inhibition of swarming motility on flagellated P. aeruginosa PA01 and at the highest test concentration of 100 μg/mL, AcOEt (35.42 ± 1.00%) extract displayed the best activity. FRAP assay indicated that the BuOH extract (A0.50 = 17.42 ± 0.25 µg/mL) was more active than standard α-tocopherol (A0.50 = 34.93 ± 2.38 µg/mL). BuOH extract was more active than other extracts except in the ABTS●+, where the DCM extract was most active. This antioxidant activity could be attributed to the phenolic compounds detected. C. nepeta extracts showed moderate inhibition on acetylcholinesterase (AChE), butyrylcholinesterase (BChE), tyrosinase, and α-amylase. The results indicate that C. nepeta is a potent source of natural antioxidants that could be used in managing microbial resistance and Alzheimer′s disease.

STABILITY INDICATING METHOD DEVELOPMENT AND VALIDATION OF MITOMYCIN AND FLUOROURACIL BY USING UPLC

Objective: The current investigation was pointed at developing and progressively validating novel, simple, responsive and stable UPLC method for the measurement of active pharmaceutical ingredients of Mitomycin and Fluorouracil. Methods: A simple, selective, validated and well-defined stability that shows isocratic UPLC methodology for the quantitative determination of Mitomycin and Fluorouracil. The chromatographic strategy utilized Inertsil ODS column of dimensions 250x4.6 mm, 5 micron, using isocratic elution with a mobile phase of acetonitrile and 0.1 percent formic acid (70:30). A flow rate of 1 ml/min and a detector wavelength of 255 nm utilizing the PDA detector was given in the instrumental settings. Validation of the proposed method was carried out according to an international conference on harmonization (ICH) guidelines. Results: LOD and LOQ for the two active ingredients were established with respect to test concentration. The calibration charts plotted were linear with a regression coefficient of R2>0.999, means the linearity was within the limit. Recovery, specificity, linearity, accuracy, robustness, ruggedness were determined as a part of method validation and the results were found to be within the acceptable range. Conclusion: The proposed method to be fast, simple, feasible and affordable in assay condition. During stability tests, it can be used for routine analysis of production samples and to verify the quality of drug samples during stability studies.

STABILITY INDICATIVE AND COST EFFECTIVE ANALYTICAL METHOD DEVELOPMENT AND VALIDATION OF FENOFIBRIC ACID AND PITAVASTATIN BY USING RP-HPLC

Objective: The current investigation was pointed at developing and progressively validating novel, simple, responsive and stable RP-HPLC method for the measurement of active pharmaceutical ingredients of Fenofibric acid and Pitavastatin. Methods: A simple, selective, validated and well-defined stability that shows gradient RP-HPLC methodology for the quantitative determination of Fenofibric acid and Pitavastatin. The chromatographic strategy utilized X-bridge phenyl column of dimensions 250x4.6 mm, 5 micron, using isocratic elution with a mobile phase of acetonitrile and 0.1 percent formic acid (60:40). A flow rate of 1 ml/min and a detector wavelength of 242 nm utilizing the PDA detector were given in the instrumental settings. Results: Validation of the proposed method was carried out according to an international conference on harmonization (ICH) guidelines. LOD and LOQ for the two active ingredients were established with respect to test concentration. The calibration charts plotted were linear with a regression coefficient of R2 > 0.999, means the linearity was within the limit. Recovery, specificity, linearity, accuracy, robustness, ruggedness were determined as a part of method validation and the results were found to be within the acceptable range. Conclusion: The proposed method to be fast, simple, feasible and affordable in assay condition. During stability tests, it can be used for routine analysis of the selected drugs.

NEW STABILITY INDICATING METHOD DEVELOPMENT AND VALIDATION OF CAPECITABINE AND DOCETAXEL IN BULK AND PHARMACEUTICAL DOSAGE FORM BY USING RP-HPLC

Objective: The current investigation was pointed at developing and progressively validating novel, simple, responsive and stable RP-HPLC method for the measurement of active pharmaceutical ingredients of Capecitabine and Docetaxel. Methods: A simple, selective, validated and well-defined stability that shows gradient RP-HPLC methodology for the quantitative determination of Capecitabine and Docetaxel. The chromatographic strategy utilized Inertsil ODS column of dimensions 250x4.6 mm, 5 micron, using isocratic elution with a mobile phase of acetonitrile and water (50:50). A flow rate of 1 ml/min and a detector wavelength of 220 nm utilizing the PDA detector were given in the instrumental settings. Using the impurity-spiked solution, the chromatographic approach was streamlined. Validation of the proposed method was carried out according to an international conference on harmonization (ICH) guidelines. Results: LOD and LOQ for the two active ingredients and their impurities were established with respect to test concentration. The calibration charts plotted were linear with a regression coefficient of R2>0.999, means the linearity was within the limit. Recovery, specificity, linearity, accuracy, robustness, ruggedness were determined as a part of method validation and the results were found to be within the acceptable range. Conclusion: The proposed method to be fast, simple, feasible and affordable in assay condition. During stability tests, it can be used for routine analysis of production samples and to verify the quality of drug samples during stability studies.

NEW VALIDATED METHOD FOR THE ESTIMATION OF ALLANTOIN AND PERMETHRIN USIGN RP-HPLC IN BULK AND PHARMACEUTICAL DOSAGE FORM

Objective: Special, effective high pressure liquid chromatography method has been developed for the simultaneous quantification of Allantoin and Permethrin. Methods: By using Waters HPLC e-2695 quaternary pump with a PDA detector of 2998 instrument the chromatographic separation of Allantoin and Permethrin was achieved on the column of Symmetry C18 (150x4.6 mm, 3.5 µm) using an isocratic elution with a buffer containing 0.1percent ortho phosphoric acid and acetonitrile at a rate of 40:60 as a mobile phase with a flow rate of 1 ml/min at ambient temperature. A detector wavelength of 226 nm utilizing the PDA detector were given in the instrumental settings. The linearity was studied between the concentration range of 1-15 µg/ml of Allantoin and 25-375 µg/ml of Permethrin were injected with a run time of 6 min. As a part of method validation the parameters like specificity, linearity, accuracy, ruggedness, robustness were determined and the results were found to be within the allowable limit. Validation of the proposed method was carried out according to an International Conference on Harmonization (ICH) guidelines. Results: LOD and LOQ for the two active ingredients were established with respect to test concentration. The plotted calibration curves were linear with a regression coefficient of R2>0.999, indicates that the linearity was with in the limit. As a part of method validation the parameters like specificity, linearity, accuracy, ruggedness, robustness were determined and the results were found to be within the allowable limit. Conclusion: The method developed was found to be applicable to routine analysis and to be used for the measurement of both active pharmaceutical ingredients (i. e, Allantoin and Permethrin). Since, there is no HPLC method reported in the literature for the estimation of Allantoin and Permethrin, there is a need to develop quantitative methods under different conditions to achieve improvement in specificity, selecivity etc.

STABILITY INDICATING AND COST-EFFECTIVE ANALYTICAL METHOD DEVELOPMENT AND VALIDATION OF SOTORASIB BY USING RP-HPLC

Objective: The current investigation was pointed at developing and progressively validating novel, simple, responsive and stable RP-HPLC method for the measurement of active pharmaceutical ingredient of Sotorasib. Methods: A simple, selective, validated and well-defined stability that shows isocratic RP-HPLC methodology for the quantitative determination of Sotorasib. The chromatographic strategy utilized symmetry C18 column of dimensions 150x4.6 mm, 3.5 µ, using isocratic elution with a mobile phase of acetonitrile and 0.1% orthophosphoric acid (70:30). A flow rate of 1 ml/min and a detector wavelength of 221 nm utilizing the PDA detector were given in the instrumental settings. Validation of the proposed method was carried out according to an international conference on harmonization (ICH) guidelines. Results: LOD and LOQ for the active ingredient were established with respect to test concentration. The calibration chart plotted was linear with a regression coefficient of R2>0.999, means the linearity was within the limit. Recovery, specificity, linearity, accuracy, robustness, ruggedness were determined as a part of method validation and the results were found to be within the acceptable range. Conclusion: The proposed method to be fast, simple, feasible and affordable in assay condition. During stability tests, it can be used for routine analysis of the selected drug.

DEVELOPMENT AND VALIDATION OF A STABILITY INDICATING RELATED SUBSTANCES OF TRANDOLAPRIL BY RP-HPLC AND ITS DEGRADATION

Objective: A validated stability-indicating RP-HPLC method for Trandolapril was developed by separating its related impurities. Methods: By using Waters HPLC e-2695 quaternary pump with a PDA detector of 2998 instrument the chromatographic separation of Trandolapril and its related impurities was achieved on the column of Agilent eclipse C18 (150x4.6 mm, 3.5 µ) using gradient elution with a buffer containing 0.1percent formic acid and acetonitrile as a mobile phase with a flow rate of 1 ml/min at ambient temperature. A detector wavelength of 213 nm utilizing the PDA detector were given in the instrumental settings. The linearity was studied between the concentration range of 4-60 µg/ml of Trandolapril and 0.5-7.5 µg/ml of imp-E, imp-A, imp-B and 0.7-10.5 µg/ml of imp-D were injected with a run time of 17 min. Validation of the proposed method was carried out according to an International Conference on Harmonization (ICH) guidelines. Results: LOD and LOQ for the Trandolapril and its impurities were established with respect to test concentration. The plotted calibration curves were linear with a regression coefficient of R2>0.999, indicates that the linearity was with in the limit. As a part of method validation the parameters like specificity, linearity, accuracy, ruggedness, robustness were determined and the results were found to be within the allowable limit. Conclusion: The method developed was found to be applicable to routine analysis and to be used for the measurement of active pharmaceutical ingredients (i. e, Trandolapril and its related impurities). Since, there is no HPLC method reported in the literature for the estimation of Trandolapril and its related impurities, there is a need to develop quantitative methods under different conditions to achieve improvement in specificity, selecivity etc.

Comparative Analysis of Psycho-physiological Parameters of the Deaflympic Karate Champion and Healthy Karate Women

The article compares psycho-physiological indicators of an elite athlete in karate - the champion of the Deaflympics and healthy, highly qualified athletes. The researched indicators were: work efficiency, degree of employment, mental stability, time of simple reaction to a moving object, reaction to a moving object, frequency of movements, the reaction time of choice, Romberg test, concentration and switching of attention according to the Bourdon test. For the analysis, 24 measurements of psycho-physiological indicators of the researched sportswoman were compared with corresponding indicators of highly skilled healthy karate girls, 29 people in total. The measurements of the studied athlete’s indicators were performed during the annual macrocycle at the beginning of a series of shock microcycles, which meant that she was in her optimal physical and psychological shape. It was found that the studied karate person has an invalid type of nervous system, which is not typical for this sport. Work efficiency, speed of work and mental stability also differ in favour of healthy karate women.

Relationship of Speed, Reaction and Concentration to the Achievement of Precision Landing of Gliding Athletes DKI Jakarta

The purpose of this study is to determine the relationship between reaction speed, concentration, and precision landing performance of DKI Jakarta gliding athletes. This study uses the quantitative method by survey technique method. Samples are 13 athletes of DKI Jakarta gliding. In order to get the data, the athlete was tested with reaction speed test, concentration test, and precision landing test. The technique of analyzing the data is correlation technique. The result of this study shown that the correlation between reaction speed, concentration, and precision landing performance is 40.3%, where the reaction speed has 38.3% correlation (strong correlation) to precision landing and concentration has 2.8% correlation to precision landing (weak correlation). So the conclusion is reaction speed has a strong correlation to precision landing while concentration has weak correlation to precision landing.