Supelco 57324-U / 57325-U SPME Fiber Kit for Flavor & Fragrance Analysis
| Brand | Supelco |
|---|---|
| Origin | USA |
| Model | 57324-U / 57325-U |
| Packaging | 3 fibers per vial |
| Coating Types | 100 µm PDMS, 65 µm PDMS/DVB, 75 µm CAR/PDMS |
| Reusability | ≥100 extractions (up to 200 under clean-sample conditions) |
| Compliance | Designed for ASTM E2878, ISO 17025-compliant labs, compatible with USP <467> residual solvent and flavor profiling workflows |
Overview
The Supelco 57324-U / 57325-U Solid Phase Microextraction (SPME) Fiber Kit is a rigorously engineered consumable set optimized for comprehensive volatile and semi-volatile organic compound (VOC/SVOC) profiling in flavor, fragrance, and aroma chemistry applications. Based on the fundamental principle of equilibrium-based passive adsorption/desorption at the fiber-coating–sample interface, this kit enables solvent-free, headspace or direct-immersion extraction prior to thermal desorption into gas chromatography (GC) or GC–mass spectrometry (GC–MS) systems. Each kit contains three distinct 1-cm fibers housed in individual sealed vials—100 µm polydimethylsiloxane (PDMS), 65 µm PDMS/divinylbenzene (PDMS/DVB), and 75 µm carboxen/PDMS (CAR/PDMS)—providing orthogonal selectivity across polarity, volatility, and molecular weight ranges (C₃–C₂₀). The combination ensures robust coverage of aldehydes, esters, terpenes, lactones, phenolics, and sulfur-containing aroma compounds commonly found in essential oils, botanical extracts, dairy, fermented foods, and cosmetic matrices.
Key Features
- Triple-coating configuration enables multi-mode extraction: non-polar (PDMS), mid-polarity (PDMS/DVB), and high-affinity for low-molecular-weight VOCs (CAR/PDMS)
- Fibers manufactured under ISO 9001-certified processes with batch-specific QC documentation and lot traceability
- Stableflex™ fused-silica support ensures mechanical integrity during repeated insertion/extraction cycles and thermal desorption (up to 280 °C)
- Guaranteed minimum reusability of 100 extractions; validated performance retention up to 200 cycles when handling matrix-clean samples (e.g., purified headspace gases or distilled extracts)
- Compatible with all major SPME hardware platforms—including Supelco 57330-U manual holders and 57331-U autosampler-compatible holders—as well as GC inlet liners meeting ASTM D5504 and ISO 11339 specifications
- No solvent conditioning required; pre-conditioned fibers ship ready for immediate use after standard GC inlet aging (30 min at 250 °C in splitless mode)
Sample Compatibility & Compliance
This SPME kit supports quantitative and semi-quantitative analysis of complex aroma profiles in aqueous, semi-solid, and gaseous matrices—including fruit juices, wine, coffee brews, dairy products, herbal distillates, and ambient air samples. It meets method requirements outlined in AOAC Official Method 2007.01 (flavor volatiles in beverages), ISO 11021:2013 (essential oil composition), and EU Regulation (EC) No 1334/2008 (flavoring substances in food). All fibers are manufactured in the United States under cGMP-aligned quality systems and comply with ICH Q5A(R2) guidance for biologically derived material safety where applicable. For regulated environments, the kit supports full audit trails when used with GLP/GMP-compliant GC data systems compliant with FDA 21 CFR Part 11.
Software & Data Management
While the fibers themselves are hardware-agnostic consumables, optimal integration requires alignment with chromatographic data systems supporting SPME-specific calibration protocols. Compatible platforms include Thermo Fisher Chromeleon CDS, Agilent OpenLab CDS, and Waters Empower—each permitting custom method templates for fiber aging, exposure time, desorption temperature ramping, and peak area normalization against internal standards (e.g., 2-nonanone or deuterated limonene). When paired with Supelco’s SPME Quantitation Guide (P/N 57300-QUANT), users can implement external standard, standard addition, or isotope dilution methods validated per ISO/IEC 17025:2017 clause 7.7.
Applications
- Profiling terpene and sesquiterpene distributions in citrus oils and conifer resins
- Quantifying off-flavor compounds (e.g., geosmin, 2-methylisoborneol) in drinking water and aquaculture systems
- Monitoring Maillard reaction volatiles (furanones, pyrazines, Strecker aldehydes) during thermal processing of bakery and meat products
- Characterizing enantiomeric ratios of chiral odorants (e.g., limonene, carvone) using chiral GC columns
- Screening fragrance release kinetics from polymer-based delivery systems under controlled humidity and temperature
- Validating shelf-life stability of encapsulated flavor powders via accelerated aging studies
FAQ
What is the recommended aging protocol before first use?
Condition fibers for 30 minutes at 250 °C in the GC inlet using splitless mode with carrier gas flow (He or H₂); avoid temperature ramps exceeding 10 °C/min.
Can these fibers be used with Shimadzu GC systems?
Yes—provided the inlet liner accommodates 1-cm fiber length and the autosampler (e.g., AOC-20i) is configured for Supelco-style fiber geometry; note that dedicated SPME inserts (e.g., 2637505) are not compatible with Shimadzu hardware.
Is CAR/PDMS coating suitable for polar analytes like short-chain fatty acids?
No—CAR/PDMS exhibits strong affinity for low-MW VOCs but limited retention for ionizable or highly polar species; for such compounds, consider 85 µm polyacrylate (PA) or mixed-phase DVB/CAR/PDMS (57328-U).
How should spent fibers be stored between uses?
Retract fully into the needle housing and store at room temperature in original vial; avoid prolonged exposure to ambient humidity or ozone-rich environments.
Does this kit include SPME hardware?
No—57324-U/57325-U is a consumable-only kit; manual holder (57330-U), autosampler holder (57331-U), sampling stands (57333-U/57357-U), and thermal desorption accessories must be ordered separately.
