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. 2023 Jan 17;15(2):85. doi: 10.3390/toxins15020085

Table 3.

Advantages and disadvantages of analytical methods for type B trichothecenes.

Method Advantages Limitations Reference
Thin layer chromatography Simple and rapid
Low-cost separation technique
Reliable quantification method when combined with densitometry
Outdated technique
Poor precision and sensitivity
Destructive sample preparation
Quantitative only when combined with a densitometer
Largely substituted by high-performance liquid chromatography for quantitative determination of trichothecenes
Inherent need for sample preparation
[2,161,166]
High-performance liquid chromatography (HPLC) Good sensitivity, selectivity, and repeatability
Automated
Short analysis time
Official reference method for the validation and verification of immunochemical tests
Destructive sample preparation
Expensive technique
Requires dedicated operator
Derivatization may be required
[175,243]
Liquid chromatography/mass spectrometry High selectivity and repeatability
Very low detection limits (LC-MS/MS)
Fast acquisition features
Compatibility with a broad range of sample preparation procedures
Wide linear dynamic range
Simultaneous determination of numerous mycotoxins
Ability to generate structural information of analyte (HRMS)
No derivatization required
Minimum requirement for sample preparation (LC-MS/MS)
Destructive sample preparation
Very expensive technique
Requires dedicated operator and specialist expertise for data interpretation
Sensitivity relies on the ionization method
[8,18,167]
Gas chromatography Good separation ability and repeatability
Very low detection limits (GC-MS/MS)
Automated
Simultaneous analyses of multiple mycotoxins
Expensive technique
Requires dedicated operator
Matrix interferences
Requires derivatization for nonvolatile mycotoxins
Carry-over effects from previous samples
Narrow scope of analysis
[236,237,241]
Enzyme-linked immunosorbent assay (ELISA) Inexpensive and specific assay
Reduced analysis time
Visual assessment
Easy manipulation
Semi-quantitative (screening) or quantitative analysis is possible
No dedicated operator required
Limited consumption of organic solvents
Easily affected by matrix interferences
Affected by potential cross-reactivity with structurally related toxins
One-time use only
Inefficiency in detection at low concentrations
Semiquantitative
Confirmatory LC analysis is often required
Possible false positives/negatives
Narrow detection range
[175,246,274]
Lateral flow immunochromatographic assay Rapid and straightforward (single-step) test
No special equipment required
Inexpensive onsite screening test
No additional chemicals or laborious preparation processes required
Portable
Reliable quantification method when combined with other modern technology
Semiquantitative (visual assessment)
Affected by potential cross-reactivity with structurally related toxins
Requiring validation for additional matrices
[255,272,275]
Fluorescence polarization immunoassay Mobility due to portable instrumentation
Very sensitive, rapid and user-friendly
Homogeneous method performed in the solution phase
Faster detection with no additional clean-up and washing steps
Convenient for monitoring large-scale samples
Possible cross-reactivity with structurally related toxins
Limited validation with HPLC or ELISA
Matrix interferences
Limited to a single mycotoxin detection at a time
[257,258,272]
Biosensors High transmission and low-cost operation
High sensitivity and selectivity
User-friendly operation
Reduced analysis time
Mobility due to portable instrumentation
Ability to be recycled
Self-contained, simple design
Extensive sample preparation is required to improve sensitivity
Limited to a single mycotoxin detection at a time
Possible cross-reactivity with structurally related toxins
Variable repeatability and reproducibility (enhanced when using novel materials)
[260,261,272]
Near-infrared spectroscopy Reduced analysis time
Easy operation
Non-destructive testing with minimal or no sample manipulation
Quick classification of grains according to mycotoxin contamination
Reliable only when combined with appropriate mathematical tools such as principal component analysis
Complicated interpretation of spectral data
Knowledge of statistical methods is required
Validation of the calibration model is required
Expensive equipment
Poor sensitivity (high limit of detection)
Point-based scanning method which enables only a mean spectrum (average measurement)
[167,264,268]
Hyperspectral imaging Reduced analysis time
Easy operation
Non-destructive testing with minimal or no sample manipulation
Information about the spatial distribution of chemical constituents across the sample is provided (sample heterogeneity can be overcome)
High spectral and spatial resolution
Quick classification of grains according to mycotoxin contamination
Reliable only when combined with appropriate mathematical tools such as principal component analysis
Complicated interpretation of spectral data
Knowledge of statistical models is required
Validation of the calibration model is required
Expensive equipment
Poor sensitivity (high limit of detection)
[265,266,267]
Electronic nose (EN) Rapid, inexpensive, and user-friendly screening method to distinguish the microbiological quality of food samples. Enhancing selectivity and sensitivity is required
Reducing interferences (e.g., to humidity) is required
Nonvolatile mycotoxins raise difficulties for EN-based detection.
Compensation for drift effects is required
Narrow scope of analysis and poor validation
[163,269,270]
Capillary electrophoresis Rapid analysis
Convenient for separating closely related toxins
Limited consumption of organic solvents
Good selectivity of analytes from interferences
Good sensitivity
Destructive sample preparation
Limited to lab use due to cumbersome instrumentation
Extensive sample preparation is required to improve sensitivity
[163,272]

Abbreviation: LC-MS/MS: liquid chromatography–tandem mass spectrometry; HRMS: high-resolution mass spectrometry, GC-MS/MS: gas chromatography–tandem mass spectrometry.