Description

Specifications Table

Product Name – n-Heptane, for HPLC, approx. 95%
Quantity/Pack Size – 1LT, 2.5LT
Form – Liquid
Grade – HPLC
Application – Chromatography, solvent extraction

Product Overview

n-Heptane (95% purity) is a high-performance solvent specifically formulated for HPLC (High-Performance Liquid Chromatography) applications. This non-polar, aliphatic hydrocarbon exhibits low UV absorbance, making it ideal for sensitive chromatographic separations where minimal interference is critical. Its narrow boiling range (98.4°C) ensures consistent evaporation rates, while the controlled impurity profile prevents baseline drift or ghost peaks in analytical workflows. The solvent is stabilized to resist peroxide formation, extending shelf life without compromising purity. Its low viscosity facilitates smooth flow through HPLC columns, reducing backpressure in high-throughput systems. The 95% grade balances cost-efficiency with analytical reliability, meeting ASTM and ACS specifications for residual solvents. Packaged in amber glass bottles to prevent photodegradation, this n-Heptane variant maintains its chromatographic integrity during storage. The solvent’s compatibility with common stationary phases (C18, silica) and mobile phase modifiers makes it versatile for both normal and reverse-phase separations.

FAQs

1. What is the maximum UV cutoff wavelength for this n-Heptane grade?

The HPLC-grade n-Heptane has a UV cutoff of 195 nm, ensuring minimal absorbance interference in most UV-Vis detection ranges.

2. Can this be used as a substitute for hexane in extractions?

While chemically similar, n-Heptane’s slightly higher boiling point (98.4°C vs hexane’s 69°C) may alter extraction kinetics. Test compatibility with your specific protocol.

3. How does the 95% purity compare to 99% grades for HPLC?

The 95% grade contains trace alkanes (primarily methylhexanes) that rarely interfere with most separations but may require baseline correction for ultra-sensitive assays.