HPLC Grade Methanol

Updated: 2026-09-17

Overview

HPLC Grade Methanol is a specialized solvent designed for high-performance liquid chromatography (HPLC) and other sensitive analytical techniques. It undergoes rigorous purification to eliminate contaminants that could interfere with chromatographic results. This grade of methanol is essential for laboratories requiring high precision and reproducibility in their analyses. Unlike industrial or reagent-grade methanol, HPLC Grade Methanol must meet strict specifications for UV absorbance, particulate content, and residual impurities. Manufacturers typically provide certificates of analysis (CoA) to confirm compliance with these standards, ensuring reliability for critical applications.

Physical and Chemical Properties

HPLC Grade Methanol is characterized by its high purity, typically ≥99.9%, with minimal levels of water and organic impurities. Its low UV absorbance (usually below 220 nm) makes it ideal for UV-detection methods in HPLC. The solvent's volatility and miscibility with water and organic solvents enhance its utility in mobile phase preparation. Key physical properties include a boiling point of 64.7°C and a density of 0.791 g/cm³ at 20°C. These attributes contribute to its effectiveness in gradient elution and sample extraction processes. The solvent's chemical stability under standard laboratory conditions further ensures consistent performance in analytical workflows.

Main Applications

HPLC Grade Methanol is predominantly used in high-performance liquid chromatography (HPLC) and liquid chromatography-mass spectrometry (LC-MS) as a mobile phase component or sample preparation solvent. Its ability to dissolve a wide range of organic compounds makes it invaluable for separating and analyzing complex mixtures. Beyond chromatography, this solvent is employed in spectroscopy, where its low impurity levels prevent interference with spectral readings. It also serves as a cleaning agent for laboratory glassware and equipment, ensuring no residue contamination for subsequent experiments. Its versatility extends to pharmaceutical, environmental, and food testing laboratories.

Safety and Storage

HPLC Grade Methanol is highly flammable and should be stored in a cool, well-ventilated area away from ignition sources. Containers must be tightly sealed to prevent evaporation and moisture absorption, which can degrade purity. Proper labeling and segregation from incompatible chemicals (e.g., oxidizers) are critical for safe storage. Personal protective equipment (PPE), including gloves and safety goggles, should always be worn when handling this solvent. In case of spills, absorb with inert material and dispose of according to local regulations. Ventilation systems or fume hoods are recommended to minimize inhalation risks during use.

B2B Procurement Guide

When procuring HPLC Grade Methanol, prioritize suppliers who provide detailed certificates of analysis (CoA) verifying purity, UV cutoff, and impurity profiles. Bulk purchases often offer cost savings, but ensure the supplier can guarantee consistent quality across batches. Packaging options (e.g., glass bottles, solvent dispensers) should align with laboratory workflows to minimize contamination risks. For international shipments, confirm compliance with transportation regulations for flammable liquids. Establish long-term relationships with reputable manufacturers to secure reliable supply chains and negotiate favorable terms. Always validate new batches with in-house quality control tests before large-scale adoption.