OBJECTIVE
To lay down a procedure for analysis to be carried out by HPLC and its documentation.
SCOPE
This procedure is applicable for analysis to be carried out by High-Performance Liquid Chromatography in Quality Control Laboratory.
RESPONSIBILITY
Execution: Chemist – QC department.
Checking: Chemist and above – QC department
PROCEDURE
- Collect the sample along with the protocol/datasheet for analysis from a section in charge.
- Read the STP and protocol/datasheet carefully for tests to be performed by HPLC, reagents used, HPLC parameters, System suitability parameters, standard preparation, and test preparation etc.
- Select the HPLC system and column (as specified in STP/protocol/datasheet) for analysis.
- Use only HPLC-grade solvents in the preparations.
Preparation of Mobile Phase:
- Use the appropriate grade of reagents as stated in the STP.
- Weigh the reagents accurately, dissolve and dilute them with solvent as per the individual STP.
- Adjust the pH with the appropriate reagent as per the STP.
- Mix thoroughly the buffer and solvents with the ratio mentioned in the individual STP and adjust the pH if it is mentioned in the STP.
- Follow the same procedure for the gradient buffer also and do the preparation separately.
- Prepare the quantity of buffer according to the sample load.
- Filter the mobile phase with appropriate membrane filter paper.
- Do the filtration without delay.
- Degas the mobile phase for about 5 minutes by using a sonicator.
- Use the mobile phase within 5 days from the date of preparation.
- Label the mobile phase with the following information, product name, and Test prepared on and use before as per the annexure-QCD30/A01-00.
- If any visual impurities are found within 5 days discard the mobile phase and prepare freshly.
The sequence of Injections:
- System suitability (if applicable)
- Standard Solution (In replicates, if mentioned in STP)
- Sample Solution (In replicates, if mentioned in STP)
- Before starting the analysis trial run carried out is required to check the Baseline noise, RT, system suitability parameters, etc
- On completion, flush the system with lab water for 15 minutes followed by the organic solvent used in the mobile phase: water (50: 50)
- After completing the analysis of one sample, make the entries in the Column usage log book and in the instrument log book.
ABBREVIATION
SOP - Standard Operating Procedure
STP - Standard test procedure
QC - Quality Control
HPLC - High-Performance Liquid Chromatography
ANNEXURE
Nil
REVISION HISTORY
Nil
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