Nanjing GQ Laboratories Co., Ltd. (Laboratory Number: 119) delivered an outstanding report card in the 2025 National Bioanalysis Proficiency Testing organized by the National Institutes for Food and Drug Control (NIFDC)—all 5 test samples passed at once, all Z-scores met the evaluation criteria, and received a "Satisfactory" rating, demonstrating solid technical skills and reliable data capabilities.

✅ Authoritative Verification, 127 Laboratories Competing on the Same Stage

This proficiency testing was organized by the National Institutes for Food and Drug Control (NIFDC) in accordance with the international standard ISO/IEC 17043, serving as a "touchstone" for the technical level of bioanalysis laboratories nationwide. The project used the common drug ibuprofen as the assessment object, requiring the determination of drug concentration in rat plasma using High-Performance Liquid Chromatography-Mass Spectrometry (HPLC-MS/MS) technology. A total of 127 laboratories nationwide participated, covering third-party testing laboratories, GLP safety evaluation institutions, clinical laboratories, scientific research institutions, drug and device testing institutions at all levels, and pharmaceutical companies, with an overall satisfaction rate of 94 %. GQ Labs stood out with the excellent achievement of passing all samples at once.

📊 Data Witnesses Precision, All Z-Scores Excellent

The proficiency testing results are evaluated based on Z-scores:

• |Z| ≤ 2 → Satisfactory

• 2 < |Z| < 3 → Questionable

• |Z| ≥ 3 → Unsatisfactory

The Z-scores for the 5 samples submitted by GQ Labs were: -0.16, 0.04, 0.22, 0.39, 0.09. All are far below 2, with no abnormal data, reflecting:

• Standardized experimental operation, with full process control from sample pre-treatment to data analysis;

• Accurate and stable results, high reproducibility, and small systematic deviation;

• Rigorous quality management system, compliant with GCLP and ICH M10 requirements.

🏆 Three Core Advantages, Empowering Drug R&D

1. Experienced technical team—years of deep cultivation in the field of bioanalysis, capable of meeting the challenges of drug detection in complex matrices;

2. Standardized and comprehensive quality system—strictly implements CNAS and GCLP standards, achieving full-process quality control;

3. Efficient and professional service platform—relying on the Pharmacokinetics Key Laboratory of China Pharmaceutical University, provides clients with one-stop analysis services such as pharmacokinetics and bioequivalence.

🌟 Continuous Deep Cultivation, Assisting High-Quality Development of Pharmaceuticals

This perfect score in proficiency testing is both a recognition of GQ Labs'  technical capabilities and an affirmation of the team's professional service. In the future, GQ Labs will continue to uphold the service philosophy of precision, standardization, and efficiency, provide reliable data support for drug research and development, and work with industry partners to jointly promote pharmaceutical innovation and medication safety.