edited by J. Gilbert
This book provides an insight
into selected areas of food contaminant analysis where there have been recent advances or
where the contaminant itself has some topicality. Information on analytical approaches is
the main emphasis is on applications. A major feature is the inclusion of a chapter on the
progress being made internationally to harmonize methods of analysis for statutory purposes.
Each chapter has an extensive reference section which gives details of the specialist texts
available for covering individual techniques in greater depth.
Sampling and sample plans for food surveillance exercises:
Design of a sampling plan. Food surveillance exercises. Sampling of
commodities for aflatoxins. Some other practical problems in food sampling.
Sample pretreatment. Sample equipment for foodstuffs. Glossary of terms used in sampling.
Automated clean-up techniques for trace component analysis in complex biological
matrices including foods:Rationale
for automating trace analysis. Criteria for selecting methods for automation. Advantages of
automation. Disadvantages of automation. Methods for automation.
Chromatographic and allied methods
of analysis for selected mycotoxins:
Aflatoxins in food comodities. Aflatoxin M1 in milk.
Fumonisins. Ochratoxin A. Patulin. Trichothecenes (deoxynivalenol, nivalenol, diacetoxyscirpenol
and T-2 toxin). Zearalenone. Multi-mycotoxin methods.
Inductively coupled plasma-mass spectrometry (ICP-MS) for the analysis of trace
element contaminants in foods: Principles
of ICP-MS. The
advantages and disadvantages of ICP-MS. Sample preparation. Total
analyte determinations. Speciation studies of
foods. Future developments.
Applications of immunoassay to pesticide analysis:
Pesticide determination by immunoassay. Commercial pesticide immunoassay kits.
Official evaluation/acceptance of
pesticide immunoassay kits.
Bioassay and chemical methods for analysis of paralytic shellfish poison:
Biological methods. Biochemical assays. Chemical methods.
Analysis of food contaminants by
combined liquid chromatography-mass spectrometry (LC-MS):
Developments in LC-MS interfacing. Coupling of other
chromatographic methods. Applications of LC-MS to food contaminants.
Analysis of foods and biological samples for dioxins
and PCBs by high resolution gas chromatography-mass spectrometry:
Nomenclature. Sample preparation and clean-up.
GC-MS methodology. Examples of analysis.
Approaches to evaluating high-temperature food packaging materials as
sources of food contamination:
Microwave susceptors. Volatile chemicals produced
during susceptor heating. Non-volatile chemical residues. Test cell considerations
for microwave environments. Recovery and analysis of migrating chemicals. Possible food alteration
products. Temperature measurements. Supercritical fluid extraction and chromatography for
assessing sources of food contamination. Modelling additive migration from polymers to foods.
Experimental determination of diffused
coefficients. Functional barrier considerations in recycled polymer applications.
Progress in developing European statutory methods of analysis:Legislation - the EU Food
Control Directive. Accreditation. Internal quality control: harmonised guidelines for internal
quality control in analytical chemistry laboratories. Proficiency testing:
ISO/IUPAC/AOAC INTERNATIONAL harmonised Protocol for Proficiency Testing of (Chemical) Analytical
laboratories. Methods of analysis. Collaborative trials. Methods of
analysis being developed by CEN for food additives and contaminants.