The dissipation of difenoconazole and linuron using an open-field experimental approach with carrots exposed to one-, two- and fivefold the recommended dose of the pesticides was evaluated to provide safe recommendation to ensure food safety of carrots. The pesticide residue analysis was performed with solid-liquid extraction with low temperature partitioning technique (SLE/LTP) followed by gas chromatography analysis. The recovery percentages of extracts obtained from samples of carrot passed through SLE/LTP extraction and fortified with difenoconazole and linuron pesticides varied from 93.4% to 106.3% and from 95.1% to 116.6%, respectively. The limit of detection for difenoconazole was 0.02 and 0.12 mg kg⁻¹ for linuron. The limit of quantification for difenoconazole was 0.05 and 0.36 mg kg⁻¹ for linuron. The degradation time for fifty percent of the applied pesticide at the different doses ranged from 2.4 to 3.6 days for difenoconazole and from 7.5 to 10.5 days for linuron. At the end of the pre-harvest interval, carrots treated with fivefold the recommended dose of both pesticides were considered unfit for consumption. Despite monitoring the degradation products of the applied pesticides by gas chromatography coupled to mass spectrometer, none degradation product was identified on the carrots.

评估了使用暴露于推荐剂量一倍，两倍和五倍农药剂量的胡萝卜的露天试验方法对二苯并呋喃唑和亚麻嘧啶的消散，以提供安全的建议，以确保胡萝卜的食品安全。农药残留分析通过固相萃取，低温分配技术（SLE / LTP）进行，然后进行气相色谱分析。经过SLE / LTP提取并用苯非那康唑和亚油酸农药强化的胡萝卜样品中提取物的回收率分别为93.4％至106.3％和95.1％至116.6％。苯磺隆的二苯并呋喃唑的检出限为0.02和0.12 mg kg ^-1。苯氟康唑的定量极限为0.05和0.36 mg kg ^-1用于利奴龙。不同剂量的百分之五十的农药的降解时间，苯乙康唑为2.4至3.6天，而利尿隆为7.5至10.5天。在收获前间隔结束时，用推荐剂量的两种农药处理五倍的胡萝卜被认为不适合食用。尽管通过气相色谱-质谱联用仪监测了施用农药的降解产物，但在胡萝卜上未发现降解产物。