Description
Specifications Table
Product Name – Whatman Extraction Thimbles GF
Quantity/Pack Size – 30x80MM (Pack of 25)
Form – Thimble
Grade – Glass Microfiber (GF)
Application – Solvent extraction, Soxhlet extraction, sample preparation
Product Overview
Whatman Extraction Thimbles GF are engineered from high-purity borosilicate glass microfibers, delivering exceptional chemical resistance and thermal stability for demanding lab applications. The uniform fiber structure ensures consistent flow rates and particle retention, making them ideal for Soxhlet extraction and other solvent-based processes. Their lint-free composition prevents sample contamination, while the robust construction withstands repeated use without degradation. The thimbles maintain structural integrity even under prolonged exposure to aggressive solvents, ensuring reliable performance across multiple extraction cycles. Their cylindrical design with reinforced walls provides mechanical strength, while the open pore structure balances high loading capacity with efficient filtration. Compatible with standard Soxhlet apparatus, these thimbles eliminate the need for pre-treatment or conditioning, saving valuable lab time. The glass microfiber material is inert to most acids and bases, preserving sample purity throughout the extraction process. Their consistent dimensions ensure proper fit in extraction equipment, while the smooth surface facilitates easy sample recovery. The thimbles are manufactured under strict quality controls to guarantee uniform thickness and density, critical factors for reproducible results in quantitative analysis.
FAQs
1. What is the maximum temperature these thimbles can withstand?
Whatman GF thimbles can continuously operate at temperatures up to 500°C, making them suitable for high-temperature extraction processes without structural compromise.
2. Are these thimbles compatible with all common laboratory solvents?
The glass microfiber construction provides excellent resistance to most organic solvents, acids, and alkalis, though compatibility should be verified for highly specialized or proprietary solvent mixtures.
3. How do these compare to cellulose extraction thimbles?
Glass microfiber thimbles offer superior chemical resistance, higher temperature tolerance, and better mechanical strength compared to cellulose, though cellulose may be preferred for certain biological extractions where protein binding is a concern.
4. What is the typical extraction efficiency with these thimbles?
When used in standard Soxhlet setups, these thimbles typically achieve 95%+ extraction efficiency for most common analytes, with performance varying based on sample matrix and solvent system.
5. Can these thimbles be reused after cleaning?
While designed for single-use applications, they can be carefully cleaned and reused 2-3 times for non-critical applications, provided they undergo thorough solvent rinsing and drying between uses.
