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7 Tasks for future studies
Bisphenol A, phthalic acid esters and nonylphenol, dealt with by
the present guidelines, are substances of which microanalysis is
very difficult due to contamination of samples in laboratory
environment. The guidelines presented here were developed using
the most advanced procedures and instruments (GC/MS, LC/MS,
LC/MS/MS) available in public research institutes.
Accumulation of analytical data on a large number of biological
samples according to the guidelines is indispensable for
understanding of biological effects of endocrine disruptors. A
problem is that laboratories capable of conducting analysis
according to the guidelines are still small in number.
Further advances in analytical procedures to improved
efficiency, precision and sensitivity are expected. Related
information must be followed closely for appropriate
modification and extension of the guidelines.
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