QPCR Standard Operating Procedure: Best Practices & Workflow

Standard Operating Procedure (SOP): Quantitative Polymerase Chain Reaction (qPCR) Workflow

Document ID: []
Version: []
Effective Date: []
Review Date: []
Department: [____________________]

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1. Purpose and Scope

This Standard Operating Procedure (SOP) outlines the mandatory protocols and best practices for the execution of quantitative polymerase chain reaction (qPCR) assays within [____________________] (the "Organization"). This document is intended to ensure data integrity, reproducibility, and compliance with institutional quality standards.

2. Personnel Qualifications

All personnel performing these procedures must be trained in molecular biology techniques and have documented competency in the operation of the specific qPCR instrumentation identified in Section 3.

3. Equipment and Instrumentation

• Instrument Make/Model: [____________________]
• Asset/Serial Number: [____________________]
• Calibration Due Date: [____________________]
• Software Version: [____________________]

4. Materials and Reagents

All reagents must be stored according to manufacturer specifications.

5. Pre-Analytical Workflow

1. Work Area Preparation: Decontaminate the laminar flow hood or dedicated PCR workstation using [] and UV sterilization for [] minutes.
2. Template Preparation: Quantify DNA/cDNA concentration using []. Dilute samples to a final working concentration of [].
3. Master Mix Preparation: Thaw reagents on ice. Prepare the master mix in a dedicated pre-PCR area to avoid cross-contamination.
   • Volume per reaction: [____________________] μL
   • Number of replicates: [____________________]

6. Analytical Workflow

1. Plate Loading: Load samples into the [____________________] plate. Ensure all wells are sealed with optical-grade adhesive film.
2. Centrifugation: Spin the plate at [] x g for [] minutes to ensure all liquid is at the bottom of the wells.
3. Thermal Cycling Profile:
   • Initial Denaturation: []°C for [] sec/min
   • Cycling: [] cycles of ([]°C for [] sec; []°C for [____] sec)
   • Melt Curve Analysis: [____________________]

7. Data Analysis and Quality Control

1. Baseline Settings: [____________________]
2. Threshold Determination: [____________________]
3. Acceptance Criteria:
   • Efficiency range: []% to []%
   • R² value: ≥ [____________________]
   • No Template Control (NTC): Must show no amplification.

8. Deviations and Incident Reporting

Any deviations from this SOP must be documented in the [] log and reported to the Quality Assurance Manager within [] hours.

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9. Authorization and Signatures

Prepared By:
Name: []
Title: []
Signature: ___________________________ Date: [____________________]

Reviewed By:
Name: []
Title: []
Signature: ___________________________ Date: [____________________]

Approved By (Quality Assurance):
Name: []
Title: []
Signature: ___________________________ Date: [____________________]

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Distribution List: [____________________]
Document Control Authority: [____________________]

Template Document: QPCR Standard Operating Procedure: Best Practices & Workflow

• Document owner: [Laboratory Management Team]
• Effective date: [Date]
• Version: [Version number]
• Applies to: [Molecular Biology Research Department]

Roles and responsibilities

Records and revision

• Prepared by: [Full name]
• Reviewed by: [Full name]
• Date completed: [Date]
• Signature: ______________________
• Date signed: [Date]