Aflatoxin B1 Reference Materials for Residue Analysis
Aflatoxin B1 – Precision Reference Materials for Confident Compliance
Safeguard your food, feed, and environmental testing with HPC Standards’ high‑purity Aflatoxin B1 reference materials. Rigorously characterized and delivered with comprehensive certificates of analysis, our standards enable traceable calibration, method validation, and reliable QC in LC–MS/MS and HPLC-FLD workflows. Produced to international quality requirements, they deliver proven homogeneity, stability, and stated uncertainties—supporting defensible results and seamless regulatory compliance across nuts, cereals, spices, cocoa, and feeds. Rely on HPC Standards GmbH as your expert partner for residue analysis: matrix-matched options, multi-analyte blends, and dedicated technical support tailored to your lab’s targets and limits.
Product | Catalog No./ CAS No. | Quantity | Price | |
|---|---|---|---|---|
ISO 17034 Certified Reference Material Aflatoxin B1 solution |  | 685168 | 1X1ML | Please log in. |
Ensure accurate, traceable quantification of Aflatoxin B1 in food, feed, and environmental samples with high-quality reference materials from HPC Standards GmbH.
Overview
Aflatoxin B1 (AFB1) is a naturally occurring mycotoxin produced primarily by Aspergillus flavus and Aspergillus parasiticus. It is the most potent and prevalent aflatoxin, frequently contaminating commodities such as maize, groundnuts (peanuts), tree nuts, dried fruits, spices, and animal feeds. AFB1 is chemically stable under typical processing conditions and can persist through storage and distribution, necessitating robust monitoring.
Accurate determination of AFB1 is critical for regulatory compliance, consumer safety, and supply chain integrity. Laboratories rely on rigorously characterized reference materials to validate methods, calibrate instruments, and ensure defensible results.
Chemical Identity and Properties
Chemical name: Aflatoxin B1
Molecular formula: C17H12O6; Molecular weight: ~312.27 g/mol
Key properties: planar difuranocoumarin structure; limited water solubility; soluble in polar organic solvents (e.g., acetonitrile, methanol). Sensitive to strong UV irradiation and oxidative reagents, but generally resistant to moderate heat and standard food processing.
Sources and Occurrence
Primary sources: growth of toxigenic Aspergillus spp. on crops pre- and post-harvest, especially under warm, humid conditions and poor storage practices.
Common matrices: cereals (maize, rice, wheat), oilseeds and nuts (peanuts, pistachios, almonds, hazelnuts), spices, dried fruits, cocoa, animal feeds. Metabolite AFM1 may appear in milk when dairy animals consume AFB1-contaminated feed.
Uses
There are no legitimate industrial or agricultural uses of Aflatoxin B1. It is an unwanted contaminant. In laboratories, AFB1 is handled exclusively for analytical purposes using certified reference materials to support method development, calibration, and quality control.
Regulatory Landscape
Global regulations set maximum levels for AFB1 (and total aflatoxins) in food and feed. Jurisdictions such as the European Union and Codex Alimentarius specify low µg/kg limits for high-risk commodities (e.g., peanuts, tree nuts, cereals, spices), with distinct levels for raw materials versus products for direct human consumption.
In many countries, animal feed limits are established to protect livestock health and prevent carryover metabolites (e.g., AFM1) into milk. Compliance requires validated analytical methods supported by suitable reference materials.
Monitoring and Surveillance
Supply chains implement risk-based sampling at critical points: harvest, storage, import, processing, and retail. Rapid screening (e.g., immunoassays) is commonly followed by confirmatory chromatographic methods.
Routine proficiency testing and internal quality controls help demonstrate ongoing competence and ensure measurement comparability between laboratories.
Sample Preparation and Matrices
Typical extraction: acetonitrile–water or methanol–water, with salt-assisted partitioning where applicable. Clean-up often uses immunoaffinity columns (IAC) or alternative sorbents to reduce matrix effects.
Representative sampling and homogenization are critical due to heterogeneous distribution (hot spots) of AFB1 in bulk lots. Matrix-matched calibration using robust reference materials improves accuracy.
Analytical Methods
Confirmatory techniques: LC–MS/MS and HPLC with fluorescence detection (often with post-column or pre-column derivatization to enhance sensitivity). GC–MS is uncommon due to analyte stability and derivatization requirements.
Screening: Lateral flow devices and ELISA for rapid on-site decisions; positives require confirmatory analysis.
Quality control: multi-level calibration with independent check standards, spike-recovery experiments, matrix blanks, and use of internal standards when appropriate.
Health Impact — Human Toxicity
AFB1 is a potent hepatotoxin and a well-established human carcinogen (liver cancer risk). Toxicity arises from bioactivation to a reactive epoxide that forms DNA adducts, leading to mutations. Acute high-dose exposure can cause hepatic failure; chronic low-dose exposure increases hepatocellular carcinoma risk, especially with co-factors such as chronic hepatitis infections and nutritional stress.
Vulnerable populations include infants, individuals with liver disease, and populations with high dietary exposure.
Occupational Exposure
Laboratory and industrial personnel may be exposed via inhalation of contaminated dusts or dermal contact during handling of raw commodities or analytical materials. Implement engineering controls, local exhaust ventilation, and strict PPE to minimize risk.
Environmental Impact — Effects on Wildlife
Wildlife and livestock consuming contaminated feed can exhibit reduced growth, immunosuppression, reproductive impacts, and liver pathology. Species such as poultry and certain fish (e.g., trout) are notably sensitive.
Environmental persistence is tied to contaminated crops and feeds; proper disposal and prevention of fungal growth during storage mitigate spread.
Risk Management and Safety Measures
Prevention: good agricultural and storage practices (drying, moisture control, aeration, sorting, removal of damaged kernels), and temperature/humidity management to inhibit Aspergillus growth.
Laboratory safety: handle AFB1 reference materials in a certified fume hood; use nitrile gloves, lab coat, and eye protection; avoid aerosol generation; decontaminate surfaces with suitable oxidants; collect waste as hazardous according to institutional and legal requirements.
Storage and Stability
Store AFB1 reference materials in tightly closed amber containers, protected from light, at controlled temperature as indicated on the certificate (commonly 2–8 °C or as specified). Avoid repeated freeze–thaw cycles for solution materials. Observe expiry and stability statements provided by the manufacturer.
Reference Materials from HPC Standards
HPC Standards GmbH supplies rigorously characterized Aflatoxin B1 reference materials for precise quantification in food, feed, and environmental matrices. Our products are produced under strict quality control according to international requirements and meet high industrial standards.
Key features: defined purity or concentration with measurement uncertainty, comprehensive certificate of analysis, homogeneity and stability data, and suitability for calibration, system suitability, and quality control. Matrix-matched and multi-analyte options are available for routine workflows.
Applications for Laboratories
Calibration of LC–MS/MS and HPLC-FLD methods for AFB1 determination across nuts, cereals, spices, cocoa, and feeds. Validation studies (LOD/LOQ, linearity, accuracy, precision) and ongoing QC (control charts, proficiency testing support). Method development for challenging matrices with significant matrix effects.
Documentation and Compliance Support
Each reference material is delivered with a detailed certificate of analysis and handling instructions to support ISO-compliant laboratory quality systems. Our technical team assists with selection of appropriate concentrations, solvents, and blends to align with regulatory limits and method requirements.