Nervonic Acid Content Testing Service for Global Nutritional and Pharmaceutical Compliance
As an ISO/IEC 17025 accredited laboratory, we deliver a specialized nervonic acid content testing service that verifies the concentration, purity, isomeric composition, and oxidative stability of nervonic acid (cis-15-tetracosenoic acid, C24:1 n-9) in nutritional supplements, functional oils, infant formula, and biological samples. Our nervonic acid content testing service supports manufacturers and exporters who must demonstrate conformity to GB 5009.168, ISO 12966-4, AOAC 996.06, USP-NF, and regional food and pharmaceutical standards across the European Union, North America, East Asia, and the Middle East. Every test is performed under our CNAS-accredited quality system, producing reports accepted by notified bodies, regulatory authorities, and procurement teams worldwide.
Product Samples We Regularly Test in Our Nervonic Acid Content Testing Service
- Nervonic acid nutritional supplements and capsules — softgel capsules, tablets, and powder formulations for cognitive health and nerve support
- Nervonic acid-rich functional oils — Malania oleifera oil, Acer truncatum (元宝枫) oil, and other plant-derived oils containing C24:1
- Infant formula and growing-up milk powders — for verification of brain-development fatty acid content and label compliance
- Special medical purpose foods and clinical nutrition products — for nerve repair and neurodegenerative disease support
- Biological samples for research and clinical studies — plasma, serum, brain tissue, and myelin sphingolipid extracts
- Raw materials and intermediates — crude nervonic acid extracts, purified nervonic acid powders, and fatty acid methyl ester (FAME) preparations
- Custom-formulated and OEM-specific nervonic acid products — with defined concentration, purity, and isomer specifications
Nervonic Acid Content Testing Service for Quantitative Analysis
- Nervonic acid content by gas chromatography with flame ionization detection (GC-FID) per GB 5009.168 and ISO 12966-4 — the sample is subjected to lipid extraction and fatty acid methyl ester (FAME) derivatization, and the nervonic acid methyl ester (C24:1 cis-15) is separated on a high-polarity capillary column and quantified by external standard calibration, providing the precise mass fraction of nervonic acid in the sample.
- Nervonic acid content by gas chromatography-mass spectrometry (GC-MS) per AOAC 996.06 and internal validated protocols — mass spectrometric detection with characteristic ion monitoring (m/z 339, 354) confirms peak identity and provides enhanced sensitivity for trace-level quantification in complex biological matrices.
- Nervonic acid content by reversed-phase high-performance liquid chromatography (RP-HPLC) per internal validated methods — a C18 or C8 column with UV detection at 203–205 nm and a mobile phase of acetonitrile–phosphoric acid provides a direct, derivatization-free quantification method for nervonic acid in tablets and purified raw materials.
- External standard calibration and linearity verification per ISO 8466 — calibration curves are generated using certified nervonic acid reference standards (purity ≥99%), with linear regression coefficients (r²) verified to exceed 0.999 across the working concentration range.
- Recovery and precision validation per ISO 5725 — spike recovery experiments and repeated measurements establish the method accuracy, with typical recovery rates of 95.78%–102.36% and relative standard deviations below 2.5% for GC-based quantification.
- Internal standard quantification using C23:0 methyl ester per internal protocols — a fatty acid internal standard (heptadecanoic acid or tricosanoic acid methyl ester) is added before derivatization to correct for sample preparation losses and injection variability, improving quantitative accuracy.
Nervonic Acid Content Testing Service for Purity and Isomeric Composition
- Isomeric separation of cis-15 and trans-15 nervonic acid per ISO 12966-4 and internal protocols — high-polarity cyanopropyl polysiloxane capillary columns (SP-2560, CP-Sil 88, or equivalent) are used to achieve baseline separation of the biologically active cis isomer from the inactive trans isomer, with quantification of each isomer reported separately.
- Total fatty acid profile and relative percentage of nervonic acid per GB 5009.168 — the complete fatty acid composition is determined, and the relative percentage of nervonic acid in total fatty acids is calculated to evaluate the raw material refinement degree and to verify label claims.
- Purity assessment of nervonic acid raw materials by GC-FID per customer specifications — the chromatographic purity of isolated or synthesized nervonic acid is measured, with the sum of non-target peaks quantified to verify the declared purity grade (typically 85%–99%).
- Related fatty acid impurity screening per internal methods — the concentrations of structurally similar fatty acids including lignoceric acid (C24:0), erucic acid (C22:1), and behenic acid (C22:0) are quantified to confirm the selectivity of the purification process.
- Residual solvent and derivatization reagent analysis per USP <467> — the levels of residual hexane, methanol, and boron trifluoride or other derivatization reagents are measured to ensure the nervonic acid product meets pharmaceutical and food-grade safety limits.
Nervonic Acid Content Testing Service for Sample Preparation and Derivatization
- Lipid extraction by Soxhlet or accelerated solvent extraction per AOAC 996.06 — solid and semi-solid samples are extracted with organic solvents to isolate the total lipid fraction prior to derivatization, ensuring complete recovery of nervonic acid from the sample matrix.
- Alkaline-catalyzed FAME derivatization per ISO 12966-2 and AOAC 996.06 — potassium hydroxide-methanol transesterification is applied for low-acid-value refined oils, providing rapid and quantitative conversion of nervonic acid to its methyl ester under mild conditions.
- Acid-catalyzed FAME derivatization per ISO 12966-2 — boron trifluoride-methanol or sulfuric acid-methanol derivatization is used for complex matrices and high-acid-value samples, ensuring complete esterification of all fatty acids including the very-long-chain nervonic acid.
- FAME extraction and clean-up per internal validated protocols — the derivatized fatty acid methyl esters are extracted with n-hexane, dried over anhydrous sodium sulfate, and filtered prior to injection, preventing column contamination and ensuring reproducible chromatography.
- Direct injection and splitless mode optimization per instrument protocols — injection parameters are optimized for the high boiling point of nervonic acid methyl ester to ensure complete vaporization and transfer to the analytical column.
Nervonic Acid Content Testing Service for Oxidative Stability and Quality Indicators
- Peroxide value and anisidine value per ISO 3960 and ISO 6885 — the primary and secondary oxidation products in nervonic acid-containing oils and supplements are measured to verify the oxidative stability and to predict shelf life.
- Acid value and free fatty acid content per ISO 660 — the level of free fatty acids is determined to verify the degree of hydrolysis and to ensure compliance with the specification for the nervonic acid product.
- Accelerated oxidative stability testing by Rancimat per ISO 6886 — the induction period of the nervonic acid product is measured under accelerated oxidation conditions to rank the oxidative stability and to support expiry date determination.
- Tocopherol and antioxidant content per ISO 9936 — the concentration of natural or added antioxidants is measured to verify the protective effect on nervonic acid and to support label claims for antioxidant content.
- Moisture and volatile matter per ISO 662 — the water content is measured to ensure the nervonic acid product meets the dryness specification and to prevent hydrolytic degradation during storage.
Nervonic Acid Content Testing Service for Biological and Clinical Samples
- Plasma and serum nervonic acid profiling per internal validated LC-MS/MS methods — nervonic acid is extracted from biological fluids and quantified by liquid chromatography-tandem mass spectrometry to support clinical research and biomarker discovery for neurological disorders.
- Brain tissue and myelin sphingolipid analysis per GC-MS — nervonic acid is determined in brain tissue extracts and myelin fractions to support neurobiology research and to investigate its role in myelin sheath integrity and nerve conduction.
- Stable isotope dilution and tracer studies per internal protocols — deuterium-labeled nervonic acid standards are used for precise quantification and metabolic tracing in biological systems.
- Sample preparation for biological matrices per internal validated protocols — protein precipitation, solid-phase extraction, and derivatization procedures are optimized for plasma, serum, and tissue homogenates to ensure accurate and reproducible nervonic acid quantification.
Report Recognition and ISO/IEC 17025 Compliance
Every test method described in this nervonic acid content testing service is covered by our ISO/IEC 17025 scope of accreditation. Our technical reports and certificates of analysis are accepted by European notified bodies for food and pharmaceutical products, by North American regulatory authorities and dietary supplement manufacturers referencing AOAC and USP standards, and by customs and procurement authorities across East Asia, the Middle East, and Australia. Whether you require a complete qualification dossier for a new nervonic acid product, a batch release inspection for an export shipment, or a root cause failure analysis of a label claim discrepancy, our laboratory provides the measurement accuracy and lipid analytical expertise that the global nutritional and pharmaceutical industries demand.
