Problems and aspects of present-day residue analysis

Abstract

A general review is given of the analytical, statistical, toxicological and 'philosophical' role of pesticide residue analysis within the evaluation of food and environmental problems. The presentation is intended as an updating of the situation which was prevalent and described 3 years ago, as well as an outlook on future trends and developments.

Sample size selection for the analysis of pesticides in tubers

“…Taylor and Burrows (1971) have given a discussion of sampling errors in measurements involving the persistence of dieldrin in field soils. Frehse (1975) has given some estimates of the errors to be expected in the final results due to variability in application, sampling, and subsequent analysis steps. However, there is a lack of information allowing the analyst to determine how many samples he should take prior to the analysis itself.…”

Μελετη Μεθοδου Προσδιορισμου Υπολειμματων Ζιζανιοκτονων Παραγωγων Της Ουριας

“…uwoycio vcpó Σχήμα 1.3. Σχηματική απεικόνιση της τύχης των γεωργικών φαρ μάκων στο περιβάλλον και της πιθανής τελικής κατάληξης των υπολειμμάτων τους (16).…”