Description
Specifications Table
Product Name – N,N-Dimethylacetamide GC-headspace grade
Quantity/Pack Size – 1 L
Form – Liquid
Grade – GC-headspace
Application – Gas chromatography, headspace analysis, solvent extraction
Product Overview
N,N-Dimethylacetamide (DMAc) in GC-headspace grade is a high-purity solvent engineered for demanding gas chromatography and headspace analysis applications. This grade ensures minimal impurity interference, providing a clean baseline for accurate chromatographic separations. With its low volatility and high thermal stability, it maintains consistent performance across a wide temperature range, making it ideal for sensitive analytical techniques. The solvent’s polar aprotic nature enhances solubility for a broad spectrum of compounds, while its low moisture content prevents peak distortion in GC analysis. Each batch undergoes rigorous quality control to meet strict GC-headspace specifications, ensuring reproducibility in critical lab workflows. The 1 L packaging offers convenience for frequent use while maintaining solvent integrity through airtight sealing. Compatible with most GC systems and headspace samplers, this DMAc grade eliminates background noise, allowing for precise quantification of volatile and semi-volatile analytes. Its chemical inertness prevents unwanted reactions with sample matrices, preserving analyte integrity throughout the analysis process.
FAQs
1. What makes GC-headspace grade DMAc different from standard reagent grade?
GC-headspace grade undergoes additional purification steps to remove volatile impurities and moisture that could interfere with chromatographic analysis. This results in a cleaner baseline and more accurate peak identification compared to standard reagent grades.
2. Can this DMAc be used with automated headspace samplers?
Yes, this grade is fully compatible with automated headspace systems. Its low volatility and consistent purity prevent system contamination or carryover between samples, ensuring reliable performance in high-throughput applications.
3. What is the typical shelf life of unopened GC-headspace grade DMAc?
When stored in its original, tightly sealed container at room temperature, the product maintains its specifications for at least 24 months from the date of manufacture. Always check the certificate of analysis for batch-specific stability data.
4. Are there any special storage requirements for this solvent?
Store in a cool, dry place away from direct sunlight and ignition sources. Keep the container tightly closed when not in use to prevent moisture absorption or contamination from lab air.
5. How does the polarity of DMAc affect its use in GC-headspace analysis?
The polar aprotic nature of DMAc makes it particularly effective for dissolving polar and semi-polar compounds, which can then be efficiently transferred to the gas phase during headspace analysis. This property helps improve sensitivity for analytes that might otherwise have poor volatility in less polar solvents.
