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⚗️ Pharmaceutical QC Analytical Tool

Standard Check & System Suitability
Verification

Enter peak area responses and reference standard weights for Standard A (SST) and Standard B (Check Standard) to automatically evaluate chromatographic system suitability, calculate %RSD, and determine Standard Check % recovery against ICH Q2(R2) and USP <621> acceptance criteria.

✍️ Developed by Muhammad Asif, Frontend Web Developer | ✅ Reviewed by Erum Farooq, Pharmaceutical QC Expert
📊 Standard Check % 📈 %RSD Precision 🔬 HPLC / GC / UV-Vis ✅ Pass / Fail Verdict 🧮 Full Math Log 💊 ICH Q2(R2) Compliant 📋 USP <621> SST 🏭 GMP / cGMP Ready
1
Select instrument and enter
acceptance limits
›
2
Enter Standard A and
Standard B weights
›
3
Enter Standard A and B
responses separately
›
4
Calculate Standard Check %,
%RSD, and verdict
›
5
Copy, print, or download
the complete QC report
🧮 Standard Check Calculator 📘 Concept & Beginner Guide 📖 Theory & Guidelines
🔵 System Suitability & Standard Check

Analytical Data Entry

Standard Check % Formula
Standard Check (%) = (Avg Area A × Wt B × 100) ÷ (Avg Area B × Wt A)
All field labels update automatically with this selection
A
Standard A — Peak Areas
B
Standard B — Peak Areas
✅
System Pass
Standard check within acceptance criteria
Standard Check %
—
Final recovery outcome
Average Value Results
A: — | B: —
Mean values from raw inputs
%RSD — Standard A
—
Injection precision
Std Deviation (Std A)
—
SD of injections
n Injections (Std A)
—
Total valid entries
n Injections (Std B)
—
Total valid entries
Wt A / Wt B Used
—
mg / mg
Limit Applied
—
Min% – Max%

📋 Standard A — Per Injection Detail

Injection Value Deviation from Mean % Deviation Status

📋 Standard B — Per Injection Detail

Injection Value Deviation from Mean B % Deviation from Std B Mean % Deviation from Std A Mean Status

📊 Response & Signal Distribution Graph

🔢  Step-by-Step Mathematical Calculation Log

Report Section

Complete QC Report

⚠️ Disclaimer
BestPharmaTools.com provides this Standard Check & System Suitability Calculator strictly for educational and informational purposes. It is an independent, unaffiliated online tool and is not a validated laboratory instrument, controlled GMP document, or a substitute for your organization's approved Quality Management System, Standard Operating Procedures, or review by qualified QA/QC personnel. All data entered is provided solely by the user; BestPharmaTools.com does not verify, endorse, or take responsibility for its accuracy, completeness, or suitability for any regulatory, clinical, or commercial use. Any output — including results viewed, copied, or printed — is used entirely at the user's own discretion and risk. BestPharmaTools.com and its owners/affiliates accept no liability for any decisions, actions, losses, or damages arising from use of this tool. Always verify calculations independently and follow your organization's validated systems and approved SOPs for any official, regulatory, or GMP-related documentation.