The risk of chlorpropham cross-contamination of grain in potato stores

Abstract

9The contamination of food with pesticide residues is of significant concern to consumers and 10 legislation has been implemented worldwide to ensure compliance with Maximum Residue 11 Levels of chemicals in food. The occurrence of the potato sprout inhibitor, isopropyl N-(3-12 chlorophenyl) carbamate (chlorpropham or CIPC) residues on cereals, such as wheat, is of 13 concern as this chemical is not authorised for use on cereals, and therefore the route of 14 unintentional contamination warrants further investigation. This study reports on the risk of 15 CIPC cross-contamination of grain that was stored in a commercial potato store and provides 16 a method for low level quantification of CIPC in cereals. A High Performance Liquid

A Simple Approach for Determining the Maximum Sorption Capacity of Chlorpropham from Aqueous Solution onto Granular Activated Charcoal

“…The date of withdrawal defined in this regulation was 8 January 2020, and the maximum duration of grace period for use, storage and disposal will expire no later than 8 October 2020. The maximum residue limit (MRL) may be reduced to almost zero within 2 years as the active substance was not renewed, and it will not be allowed to import potato products into Europe with CIPC residues above a limit [15,16]. Despite the fact that CIPC was banned in Europe, it is currently being used in USA and many other developing and third world countries [17].…”

“…LOD (µg/mL) = 1.0 × (Response of LOD) Mean (13) LOQ (µg/mL) = 1.0 × (Response of LOQ) Mean (14) Response of LOD= 3* STDEV (15) Response of LOQ= 10* STDEV (16) Accordingly, the LOD and LOQ for CIPC were 0.03 µg/mL and 0.09 µg/mL respectively. These are the lowest amount that the system can detect or quantify.…”