Inductively Coupled Plasma Mass Spectroscopy (ICP-MS), Full Scan

ICP-MS, Full Scan is a highly sensitive analytical technique used to detect and quantify trace levels of inorganic and metallic elements in medical devices. It is particularly valuable for identifying potential elemental leachables originating from materials such as additives, colorants, or residual catalysts. The method involves ionizing the sample with plasma and analyzing the ions by mass spectrometry. This comprehensive scan can provide total quantification, ensuring that devices meet biocompatibility and safety standards before clinical use.

Why This Testing is Performed

ICP-MS Full Scan is conducted to:

• Identify elemental impurities that may leach from device materials.
• Support chemical characterization as part of biocompatibility assessments.
• Ensure compliance with regulatory expectations for patient safety.
• Detect toxic or carcinogenic metals that could pose health risks.

This testing is especially critical for implantable or blood-contacting devices where long-term exposure to trace elements could have adverse effects.

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Steps in Conducting This Test

1. Sample Preparation: The device or material is extracted using a suitable solvent under controlled conditions.
2. Sample Injection: The liquid sample is nebulized and then desolvated inside the plasma.
3. Ionization: Within the inductively coupled plasma, particles are  atomized and ionized.
4. Mass Spectrometry: The ions are separated and quantified based on their mass-to-charge ratio.
5. Data Analysis: Results are compared against toxicological thresholds or regulatory limits to assess safety.

Standards, Guidance, and Regulations

• ISO 10993-18: Specifies requirements for chemical characterization of materials, including elemental analysis.
• ICH Q3D: Specifies Permitted Daily Exposure (PDE) for the maximum acceptable intake of elemental impurity.
• USP <233>: Provides procedures for elemental impurities testing in pharmaceuticals, often referenced for medical devices.