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Standard Operating Procedure (SOP) for Cleaning of High Performance Liquid Chromatography (HPLC)

Standard Operating Procedure (SOP) for Calibration of Conductivity/TDS Meter

Standard operating procedure

1. Purpose of Cleaning of High Performance Liquid Chromatography (HPLC)

The purpose of this Standard Operating Procedure (SOP) is to define the guidelines for the thorough cleaning of the High Performance Liquid Chromatography (HPLC) system within [Company Name]. Proper cleaning ensures the integrity of chromatographic analyses, minimizes contamination risks, and maintains instrument performance.

2. Scope of Cleaning of High-Performance Liquid Chromatography (HPLC)

This SOP for Cleaning of High-Performance Liquid Chromatography (HPLC) applies to all personnel responsible for the operation, maintenance, and cleaning of HPLC instruments within [Company Name]. It encompasses the procedures for cleaning various HPLC components, including the flow path, detector, and injectors.

3. Definitions involved in Cleaning of High Performance Liquid Chromatography (HPLC)

3.1 HPLC:

High Performance Liquid Chromatography, an analytical technique used for separating, identifying, and quantifying components in a mixture.

4. Safety Precautions and Personal Protective Equipment (PPE)

4.1. PPE Requirements

4.1.1 Personnel conducting HPLC cleaning procedures must wear appropriate PPE, including lab coats, safety goggles, gloves, and any additional PPE as required.

4.1.2 Ensure that PPE is in good condition and properly fitted.

4.2. Chemical Safety

4.2.1 Handle all cleaning agents, solvents, and chemicals with care, following manufacturer instructions and safety data sheets.

4.2.2 Store chemicals in designated areas away from incompatible substances.

5. Equipment and Materials

5.1. Cleaning Supplies

5.1.1 Ensure the availability of cleaning supplies, including lint-free wipes, syringes, septa, and suitable solvents for HPLC cleaning.

5.2. HPLC Instrument

5.2.1 Ensure that the HPLC instrument is in the “standby” or “off” mode before initiating the cleaning process.

6. High Performance Liquid Chromatography (HPLC) Cleaning Procedure

6.1. Flow Path Cleaning

6.1.1 Disconnect the column and flush the entire flow path with a suitable cleaning solvent as per the manufacturer’s recommendation.

6.1.2 Run the cleaning solvent through the system for a sufficient duration to ensure all contaminants are removed.

6.2. Detector and Injector Cleaning

6.2.1 Remove the injector and detector flow cells, if applicable.

6.2.2 Clean these components with appropriate solvents and lint-free wipes, taking care not to damage sensitive parts.

6.3. Post-Cleaning Flush

6.3.1 Flush the entire system with a solvent compatible with the subsequent analysis to remove any residual cleaning solvent.

6.3.2 Perform a system suitability test to ensure the instrument is ready for analysis.

7. Documentation and Recordkeeping

7.1. Cleaning Records

7.1.1 Maintain detailed records of each HPLC cleaning session, including date, time, components cleaned, solvents used, and any issues encountered.

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