PubMed · 3251543
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A Argenziano Cutolo, G Skoff. [III. Trace elements in cigarettes].. https://pubmed.ncbi.nlm.nih.gov/3251543/
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With the recent proliferation of mass spectrometric methods available for the identification and confirmation of various compounds in different environmental matrices, it is timely to address the criteria desirable in a regulatory sample case. The emphasis of this review is on the experimental process of confirmation at concentration levels in the range of low parts per million (ppm) to parts per trillion (ppt). At such levels, various data manipulations or alternate choices of approaching the analytical problem of confirmation must be employed to ensure an acceptable result. The problems experienced when dealing with nanogram levels in analysis are much more complex than when recording a mass spectrum of an ample supply of a reference standard. This review reflects an interpretation of the developing status of confirmation since there does not yet exist "accepted criteria".
The cultivation of vegetables under glass and plastics is one of the most intensive application fields of pesticides and chemicals for regulation of biological processes. Therefore it may potentially occur a relatively high residues contamination of the crops. The author reveals in a survey the residue situation of usual insecticides, acaricides, fungicides, and chemicals for regulation of biological processes on tomatoes, cucumbers, and lettuce in comparison with the maximum residue limit after cold fogging application. The residues of benomyl, carbendazim, and ethylen-bis-dithiocarbamate are detailed discussed in the light of the latest toxicological findings. The results the residues of 11 agents on the crops show that after the corresponding preharvest interval the residues constitute 1.7-78% of the maximum residue limit. The conclusion is drawn that the cold fogging application of the agents under glass and plastics does not result in food hygienic toxicological problems.