Calibration Standards: Why Inorganic Ventures Leads the Industry

The Importance of ICP Calibration Standards

ICP-OES and ICP-MS are the workhorses of trace elemental analysis in pharmaceutical, environmental, and food testing laboratories. The accuracy of every result depends entirely on the quality of the calibration standards used. A calibration standard with uncertain concentration or poor stability invalidates your entire analytical run.

Who is Inorganic Ventures?

Inorganic Ventures (IV) is a US-based manufacturer of inorganic reference standards that has become the benchmark for ICP/ICP-MS calibration standards globally. Their products are manufactured under ISO 17034 accreditation, with NIST traceability for all certified values.

What Makes IV Standards Superior

• Primary gravimetric preparation: Standards are prepared by direct dissolution of high-purity metals or salts, not dilution of commercial solutions. This gives the lowest possible uncertainty.
• Multiple QC checkpoints: Every lot is independently verified by ICP-OES, ICP-MS, and/or IC before release.
• Stability documentation: IV provides stability data covering the entire shelf life of each standard — critical for long-term method validation.
• Low matrix uncertainty: The acid matrix and ionic strength are optimized to minimize spectral interferences and matrix effects.

Key Product Lines

Single-element standards: Available in concentrations from 1mg/L to 10,000mg/L in HNO₃, HCl, or H₂SO₄ matrices. Used for primary calibration curves.

Multi-element standards: Mixed-element solutions (e.g., 14-element environmental mixes, EPA mixes) for routine environmental and industrial testing.

Pharmaceutical elemental impurity standards: ICH Q3D and USP <232>/<233> compliant standards for oral, parenteral, and inhalation products.

USP 232/233 and ICH Q3D

The USP chapters on elemental impurities (232 and 233) and ICH Q3D require pharmaceutical manufacturers to demonstrate that their products meet elemental impurity limits for 24 elements. Inorganic Ventures' pharmaceutical-grade standards are formulated specifically for these regulatory requirements.

Supply Through Upashna Enterprises

We are an authorized distributor for Inorganic Ventures in India. We maintain inventory of the most commonly needed standards and can source specialty standards within 2–4 weeks. Contact our team for custom standard preparation.