scholarly journals A Validated RP-HPLC Stability Method for the Estimation of Chlorthalidone and Its Process-Related Impurities in an API and Tablet Formulation

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Chaitali Kharat ◽  
Vaishali A. Shirsat ◽  
Yogita M. Kodgule ◽  
Mandar Kodgule
Keyword(s):  
Mobile Phase ◽  
Limit Of Detection ◽  
Hplc Method ◽  
Buffer Solution ◽  
Related Impurities ◽  
First Line Therapy ◽  
Rp Hplc ◽  
Limit Of Quantitation ◽  
Bulk Drug ◽  
Simultaneous Identification

Low-dose thiazide and thiazide-like diuretics are widely used as first-line therapy for hypertension. Chlorthalidone, a monosulfamyl diuretic, is frequently prescribed in cases of hypertension and congestive heart failure. In this research paper, an improved reverse-phase HPLC method was developed for the simultaneous identification and quantitation of pharmacopoeia-listed and in-house process- and degradation-related impurities of chlorthalidone in bulk drug and formulations. Chromatographic separation was carried out on a C8 column (250 × 4.6 mm; ‘5 μm particle size) at a flow rate of 1.4 mL/min with a 220 nm detection wavelength. Mobile phase A consisted of buffer solution (diammonium hydrogen orthophosphate (10 mM, pH 5.5)) and methanol at a 65 : 35 ratio (v/v), and mobile phase B consisted of buffer solution and methanol at a 50 : 50 ratio (v/v). The API and formulation were subjected to stress conditions such as acid, alkali, oxidation, thermal, and photolytic conditions. Validation studies for the in-house process impurities were performed for specificity, limit of detection (LOD), limit of quantitation (LOQ), linearity, precision, accuracy, and robustness. Thus, an improved RP-HPLC method capable of good separation of all known and unknown impurities with acceptable resolution and tailing factor was developed.

scholarly journals A A RAPID AND SENSITIVE RP-HPLC METHOD FOR THE QUANTITATIVE ANALYSIS OF EMPAGLIFLOZIN IN BULK AND PHARMACEUTICAL DOSAGE FORM

2019 ◽  
pp. 60-65
Author(s):  
MADHURIMA BASAK ◽  
Santhosh Reddy Gouru ◽  
Animesh Bera ◽  
Krishna veni Nagappan
Keyword(s):  
Quantitative Analysis ◽  
High Performance ◽  
Dosage Form ◽  
Limit Of Detection ◽  
Hplc Method ◽  
Reverse Phase ◽  
Pharmaceutical Dosage Form ◽  
Rp Hplc ◽  
Limit Of Quantitation ◽  
Bulk Drug

Objective: The present study aims at developing an accurate precise, rapid and sensitive Reverse Phase High-Performance Liquid Chromatography (RP-HPLC) method for assessing Empagliflozin in bulk drug and in the pharmaceutical dosage form. Methods: The proposed method employs a Reverse Phase Shim Pack C18 column (250 mm × 4.6 mm id; 5 µm) using a mobile phase comprising of acetonitrile and water in the ratio of 60:40 v/v flushed at a flow rate of 1 ml/min. The eluents were monitored at 223 nm. Results: Empagliflozin was eluted at a retention time of 5.417 min and established a co-relation co-efficient (R2>0.999) over a concentration ranging from 0.0495-100µg/ml. Percentage recovery was obtained between 98-102% which indicated that the method is accurate. The Limit of Detection (LOD) and Limit of Quantitation (LOQ) were found at 0.0125µg/ml and 0.0495µg/ml, respectively. Conclusion: An RP-HPLC method which was relatively simple, accurate, rapid and precise was developed and its validation was performed for the quantitative analysis of empagliflozin in bulk and tablet dosage form (10 and 25 mg) in accordance to International Conference of Harmonization (ICH) Q2 (R1) guidelines. The proposed method may aid in routinely analyzing empagliflozin in pharmaceuticals.

scholarly journals A Simple and Validated Reverse Phase HPLC Methodfor the Determination of Rabeprazole inPharmaceutical Dosage Forms

2010 ◽  
Vol 7 (2) ◽  
pp. 569-577 ◽  
Author(s):  
Uma Mahesh Karra ◽  
Sanjeeva Yarkala
Keyword(s):  
High Performance ◽  
Limit Of Detection ◽  
Hplc Method ◽  
Reverse Phase Hplc ◽  
Reverse Phase ◽  
Rp Hplc ◽  
Limit Of Quantitation ◽  
Tablet Formulations ◽  
Bulk Drug

A simple and rapid reverse phase high performance liquid chromatography (RP-HPLC) method was developed and validated for quantitative determination of rabeprazole in bulk drug samples and formulations. Rabeprazole was analyzed by using reverse phase LC-GC column (Inertsil ODS, 4.6 mm x 25 cm, 5 microns), with mobile phase consisting of methanol: water (78:22 v/v). The flow rate was set 1.0 mL/min and analysis was performed at wavelength 288 nm using Photo Diode Array (PDA) detector at ambient temperature. The method was validated and stability studies were conducted under different conditions. The retention time for rabeprazole was around 4.12 minutes. The calibration curves were linear (r≥0.9998) over a concentration range from 20.0 to 80.0 μg/mL. Limit of detection (LOD) and Limit of quantitation (LOQ) were 8 ng/mL and 24 ng/mL respectively. The developed method was successfully applied to estimate the amount of rabeprazole in tablet formulations.

scholarly journals A RP-HPLC Method for the Analysis of Neostigmine Methylsulfate and Process-Related Impurities, Forced Degradation Studies, in the Injection Formulation

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Manali Parab ◽  
Vaishali A. Shirsat ◽  
Yogita M. Kodgule ◽  
Mandar Kodgule
Keyword(s):  
Limit Of Detection ◽  
Hplc Method ◽  
Neuromuscular Blocking ◽  
Temperature Cycling ◽  
Synthesis Process ◽  
Forced Degradation ◽  
Related Impurities ◽  
Rp Hplc ◽  
Validation Parameters ◽  
Limit Of Quantitation

Neostigmine methylsulfate is an anticholinesterase agent and is clinically used for treating myasthenia gravis. It is also used for reversing nondepolarising neuromuscular blocking agents. Neostigmine methylsulfate may be administered by intravenous, intramuscular, or subcutaneous injection. In this research paper, a distinct stability-indicating reverse phase HPLC method was developed and validated for the quantitative determination of related impurities and degradation impurities in neostigmine methylsulfate API and injection formulation. The specific objective was to improve the resolution between European Pharmacopoeia listed impurity A and impurity B and degradation impurity of neostigmine methylsulfate API and injection formulation. The analysis was performed using Kromasil C18 column at 30°C of column oven temperature with phosphate-buffer/acetonitrile in a gradient mode. The RP-HPLC method was developed and validated for in-house neostigmine methylsulfate synthesis process sample and injection formulation. The injection formulation sample was studied for accelerated stability, temperature cycling stability, and photostability. The validation studies for neostigmine methylsulfate synthesis process API were studied using impurity A, impurity B, and impurity C. The analytical method validation parameters studied were specificity, precision, linearity, limit of detection, limit of quantitation, accuracy, and robustness. The API and the injection formulation were subjected to forced degradation under acid, alkali, oxidation, and photolytic and thermal conditions. The proposed method showed a significantly improved RRT (Relative Retention Time) of impurity A and impurity B with a resolution greater than 1.5. The developed method eliminates the use of an ion-pairing agent and thereby a good performance of column was established.

scholarly journals A Validated RP-HPLC Method for the Determination of Citrinin in Xuezhikang Capsule and otherMonascus-Fermented Products

2012 ◽  
Vol 9 (1) ◽  
pp. 260-266 ◽  
Author(s):  
Li Xue-Mei ◽  
Shen Xing-Hai ◽  
Xue Lan ◽  
Duan Zhen-Wen ◽  
Guo Shu-Ren
Keyword(s):  
Mobile Phase ◽  
Limit Of Detection ◽  
Hplc Method ◽  
Quantitative Detection ◽  
Rp Hplc ◽  
Toxic Product ◽  
Limit Of Quantitation ◽  
Xuezhikang Capsule ◽  
Fermented Products

Citrinin is a toxic product usually produced during theMonascusfermentation. The presence of citrinin in xuezhikang capsule has been a concern due to its ingredient which is derived frommonascus-fermented rice. A rapid and sensitive RP-HPLC method with fluorescence detection at λex= 331 nm and λem= 500 nm for analysis of citrinin inMonascus-fermented products was developed to analyze citrinin inMonascus-fermented products. The chromatography was performed with mobile phase containing acidified water and acetonitrile. The calibration curve was linear (r = 0.9999) over a range of 0.0107- 0.537 μg/mL. The limit of detection (LOD) and the limit of quantitation (LOQ) were 0.187 ng/mL and 0.6 ng/mL respectively. The analysis of xuezhikang capsules using the developed method suggested that the product does not contain detectable citrinin and the result has been further confirmed using independent LC-MS/MS analysis. The proposed method has also been applied to analyze 11 samples of otherMonascus-fermented products. The results suggested that there were no detectable citrinin in 4 of the 11 samples, however citrinin with the levels between 0.10-594 ng/kg has been detected in the other 7 samples. It indicates that the proposed method can also be applied to carry out the quantitative detection of citrinin for otherMonascus-fermented products.

Development of RP-HPLC method for the analysis of levocetirizine. 2HCl and ambroxol. HCl in combination and its application

2010 ◽  
Vol 3 (1) ◽  
pp. 893-896
Author(s):  
Venisetty R K ◽  
Kamarapu S K ◽  
Vaijayanthi ◽  
Bahlul ZEA
Keyword(s):  
High Performance ◽  
Limit Of Detection ◽  
Phosphate Buffer Solution ◽  
High Performance Liquid Chromatographic ◽  
Reversed Phase ◽  
Pharmaceutical Products ◽  
Hplc Method ◽  
Buffer Solution ◽  
Rp Hplc ◽  
Limit Of Quantitation

A simple, sensitive isocratic and reproducible reversed phase High Performance Liquid Chromatographic (RP-HPLC) method was developed for the estimation of ambroxol hydrochloride (ABH) and levocetirizine dihydrochloride (LCD) in combination using PDA detector. The system consisted of RP-C18 column and the detection was performed at 230nm. The mobile phase was a mixture of acetonitrile : phosphate buffer solution (60:40) (pH  7.0) pumped at room temperature and a flow rate of 1 ml/min. ABH and LCD were eluted at 2.75 and 5.01 sec respectively. The mean absolute recoveries of ABH and LCD were about 98 % and 99 % respectively and the limit of detection of LCD and ABH in the mixture of given proportion is observed to be 0.1 µg/ml and 1.5 µg/ml and the limit of quantitation is 0.3 µg/ml and 4.5 µg/ml respectively. The calibration was linear over a concentration range of 4.5 µg/ml to 15.0 µg/ml with r2 > 0.997 for ABH and 0.3 µg/ml to 1.0 µg/ml with r2 > 0.999 for LCD. The intra (n = 5) and inter (n = 5) day assay variations in the linear range are < 4 % for ABH and < 6 % for LCD. Three pharmaceutical products containing this combination are analyzed to test the applicability of the new method. The percentage of ABH and LCD in three marketed capsule dosage form studied range from 99 to 102 % and 100 to 103 % and respectively to the claimed value.

"A New RP-HPLC Method for the Simultaneous Determination of Drotaverine Hydrochloride and Paracetamol in a Tablet Dosage Form"

2012 ◽  
Vol 4 (4) ◽  
pp. 1544-1549
Author(s):  
A J Vyas ◽  
J K Patel ◽  
J V Chavda ◽  
Bhandari A
Keyword(s):  
Correlation Coefficient ◽  
Limit Of Detection ◽  
Hplc Method ◽  
Rp Hplc ◽  
Limit Of Quantitation ◽  
Drotaverine Hydrochloride ◽  
Tablet Formulations ◽  
Bulk Drug ◽  
Tablet Dosage

A simple, precise, and accurate isocratic RP-HPLC method was developed and validated for determination of Drotaverine hydrochloride (DROT) and paracetamol (PCM) in bulk drug and tablet formulations. Isocratic RP-HPLC separation was achieved on a Varian Microsorb mv C18 column (250 4.6 mm id, 5 mm particle size) using the mobile phase acetonitrile: water: triethylamine (TEA) (55:45:0.3%) with the pH adjusted to 3.5 and orthophosphoric acid at a flow rate of 1.6 ml/min. The retention time of DROT and PCM were 3.2713 and 1.5735 minutes, respectively. The detection was performed at 230 nm and samples of 20 µl were manually injected. The method was validated for linearity, precision, accuracy, robustness, and specificity. The method was found to be linear in the concentration range of 2-16 µg/ml with a correlation coefficient of 0.9997 for DROT and 12.5-100 µg/ml with a correlation coefficient of 0.9992 for PCM. The Calculated Limit of detection (LOD) and Limit of Quantitation (LOQ) for DROT were 0.0872 and 0.2644 µg/ml, respectively, and for PCM 0.2965 and 0.8984 µg/ml, respectively. The accuracy (recovery) was found to be in the range of 99.13%-101.52% with RSD of 1.194% for DROT and 99.09%-100.33% for PCM with RSD of 1.096%.

scholarly journals RP-HPLC Method Development and Validation for the Estimation of Lumefantrine in Bulk Drug

2021 ◽  
pp. 226-231
Author(s):  
Ashish Sethiya ◽  
R. P. S. Rathore
Keyword(s):  
Method Development ◽  
Limit Of Detection ◽  
Plasmodium Species ◽  
Reversed Phase ◽  
Hplc Method ◽  
Uv Detector ◽  
Rp Hplc ◽  
Relative Standard ◽  
Limit Of Quantitation ◽  
Bulk Drug

Lumefantrine is an antimalarial agent used to treat acute uncomplicated malaria. It is administered in combination with artemether for improved efficacy. This combination therapy exerts its effects against the erythrocytic stages of Plasmodium spp. and may be used to treat infections caused by P. falciparum and unidentified Plasmodium species, including infections acquired in chloroquine-resistant areas. A reversed-phase high performance liquid chromatography (RP-HPLC) method was developed and validated for the estimation of lumefantrine in bulk drug. The separation was achieved on Thermo C18 analytical column (250 mm × 4.6 mm i.d., 5.0 μm) using 10mM KH2PO4: acetonitrile  (pH adjust 3.0 with OPA) in the ratio 20:80 v/v as mobile phase and at a flow rate of 1.0 ml/min. Detection was carried out using a UV detector at 240nm. The total chromatographic analysis time per sample was about 6.0 min with lumefantrine eluting at retention time of about 3.225 ± 0.001min. The method was validated for accuracy, precision, specificity, linearity and sensitivity. Validation studies demonstrated that this HPLC method is simple, specific, rapid, reliable and reproducible. The standard curve was linear over the concentration range of 5-25 μg/ml with r2 close to one (0.999). The limit of detection (LOD) and limit of quantitation (LOQ) obtained for lumefantrine were 0.25 μg/ml and 0.75μg/ml respectively. The high recovery and low relative standard deviation confirm the suitability of the proposed method for the determination of lumefantrine in bulk drugs.

scholarly journals Validated Reverse Phase HPLC Method for the Determination of Irinotecan in Pharmaceutical Dosage Forms

2007 ◽  
Vol 4 (1) ◽  
pp. 128-136 ◽  
Author(s):  
Murali Balaram V. ◽  
VENKATESWARA Rao J. ◽  
Ramakrishnag S. Sankar Ganesh G. ◽  
Balamurali Krishna T.
Keyword(s):  
High Performance ◽  
Limit Of Detection ◽  
Hplc Method ◽  
Reverse Phase Hplc ◽  
Reverse Phase ◽  
Pharmaceutical Dosage Forms ◽  
Rp Hplc ◽  
Limit Of Quantitation ◽  
Bulk Drug

A simple and rapid reverse phase high performance liquid chromatography (RP-HPLC) method was developed and validated for quantitative determination of irinotecan in bulk drug samples and formulations. Irinotecan was analyzed by using reverse phase cyano column (4.6 mmx25 cm, 5 microns), with mobile phase consisting of phosphate buffer: acetonitrile (75:25v/v), pH adjusted to 2.5 with phosphoric acid. The flow rate was set 0.8 mL/min and the analysis was performed at wavelength 225 nm using Photo Diode Array (PDA) detector at ambient temperature. The method was validated and stability studies were conducted under different conditions. The retention time for irinotecan was around 5.82 minutes. The calibration curves were linear (r≥ 0.9998) over a concentration range from 20.0 to 80.0 μg/mL. Limit of detection (LOD) and Limit of quantitation (LOQ) were 8 ng/mL and 24 ng/mL respectively. The developed method was successfully applied to estimate the amount of irinotecan in injection formulations.

scholarly journals Simultaneous Estimation of Gemcitabine Hydrochloride and Capecitabine Hydrochloride in Combined Tablet Dosage Form by RP-HPLC Method

2011 ◽  
Vol 8 (3) ◽  
pp. 1212-1217 ◽  
Author(s):  
V. Rajesh ◽  
B. Anupama ◽  
V. Jagathi ◽  
P. Sai Praveen
Keyword(s):  
Mobile Phase ◽  
High Performance ◽  
Dosage Form ◽  
Limit Of Detection ◽  
Hplc Method ◽  
Simultaneous Estimation ◽  
Gemcitabine Hydrochloride ◽  
Rp Hplc ◽  
Limit Of Quantitation ◽  
Tablet Dosage

A new reverse phase high performance liquid chromatography (RP-HPLC) method has been developed for the simultaneous estimation of gemcitabine hydrochloride and capecitabine hydrochloride in combined tablet dosage form. An inertsil ODS-3 C-18 column having dimensions of 250×4.6 mm and particle size of 5 µm, with mobile phase containing a mixture of acetonitrile : water : triethyelamine in the ratio of (70 : 28 : 2v/v) was used. The pH of mobile phase was adjusted to 4.0 withortho-phosphoric acid. The flow rate was 1 mL/min and the column effluents were monitored at 260 nm. The retention time for gemcitabine hydrochloride and capecitabine hydrochloride was found to be 2.76 and 2.3 min respectively. The proposed method was validated in terms of linearity, accuracy, precision, limit of detection, limit of quantitation and robustness. The method was found to be linear in the range of 10-50 µg/mL and 4-24 µg/mL for gemcitabine hydrochloride and capecitabine hydrochloride, with regression coefficient r = 0.999 and r = 0.999, respectively.

scholarly journals A Validated RP-HPLC Method for the Estimation of Quetiapine in Bulk and Pharmaceutical Formulations

2010 ◽  
Vol 7 (s1) ◽  
pp. S261-S266 ◽  
Author(s):  
D. Suneetha ◽  
A. Lakshmana Rao
Keyword(s):  
Mobile Phase ◽  
Orthophosphoric Acid ◽  
Limit Of Detection ◽  
Pharmaceutical Formulations ◽  
Hplc Method ◽  
Detector Response ◽  
Control Analysis ◽  
Rp Hplc ◽  
Limit Of Quantitation ◽  
The Mean

A new, simple, specific, sensitive, rapid, accurate and precise RP-HPLC method was developed for the estimation of quetiapine in bulk and pharmaceutical formulations. Quetiapine was chromatographed on a reverse phase C18Waters column (75x4.6 mm I.D., particle size 3.5 μm) in a mobile phase consisting of phosphate buffer (pH 3.0 adjusted with orthophosphoric acid) and acetonitrile in the ratio 40:60 v/v. The mobile phase was pumped at a flow rate of 0.8 mL/min with detection at 291 nm. The detector response was linear in the concentration of 20-120 μg/mL. The limit of detection and limit of quantitation was found to be 0.2 and 0.75 μg/mL, respectively. The intra and inter day variation was found to be less than 1%. The mean recovery of the drug from the solution was 99%. The proposed method is simple, fast, accurate, precise and reproducible hence, it can be applied for routine quality control analysis of quetiapine in bulk and pharmaceutical formulations.

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