Aicaigou LogoB2B Wiki

HPLC/GC Grade Reagents

Updated: 2026-09-25

Overview

HPLC/GC Grade Reagents are specialized chemicals manufactured to meet the stringent purity requirements of chromatographic analyses. These reagents are free from impurities that could interfere with detection systems, ensuring accurate and reproducible results. They are widely used in pharmaceuticals, environmental monitoring, and food safety laboratories. Unlike standard laboratory-grade chemicals, HPLC/GC Grade Reagents undergo additional purification steps, such as distillation or filtration, to remove trace contaminants. Their low UV absorbance and minimal particulate levels make them ideal for sensitive analytical techniques like UV-Vis detection or mass spectrometry.

Physical and Chemical Properties

HPLC/GC Grade Reagents exhibit high chemical stability and consistency, with purity levels typically exceeding 99.9%. Common solvents like acetonitrile, methanol, and water for HPLC are rigorously tested for absorbance at wavelengths as low as 190 nm. Key properties include low acidity/alkalinity (pH-neutral), negligible evaporation residues, and controlled moisture content. For GC-grade reagents, volatiles are minimized to prevent ghost peaks. Physical characteristics (e.g., boiling point, viscosity) align with standard reagent grades but with tighter tolerances to ensure method reproducibility.

Main Applications

These reagents are essential for preparing mobile phases in HPLC/UHPLC systems, where even trace impurities can cause baseline drift or false peaks. In GC, they serve as carrier gases, solvents for sample dilution, or derivatization agents. Industries rely on them for regulatory compliance testing, such as USP/EP monographs in pharmaceuticals or EPA methods in environmental labs. They are also critical for calibrating instruments and validating analytical methods under Good Laboratory Practice (GLP) guidelines.

Safety and Storage

Organic solvents like acetonitrile (HPLC Grade) are flammable and require storage in flame-proof cabinets. Amber glass bottles prevent photodegradation, while airtight seals minimize moisture absorption or evaporation. Safety Data Sheets (SDS) must be reviewed for each reagent. Proper PPE (gloves, goggles) and fume hoods are mandatory when handling. Dispose of waste according to local regulations, as many solvents are hazardous to aquatic life.

B2B Procurement Guide

When sourcing HPLC/GC Grade Reagents, prioritize suppliers with ISO 9001 certification and documented quality control processes. Request batch-specific CoAs to verify parameters like UV cutoff, residue on evaporation, and water content. Bulk purchases (e.g., 20L drums) may offer cost savings but consider shelf-life constraints. For global procurement, ensure compliance with regional standards (e.g., USP, Reag. Ph. Eur.). Audit supplier warehouses for proper storage conditions to avoid compromised product integrity.

Related Manufacturers