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| 唑虫酰胺和丁醚脲在甘蓝上的残留与膳食风险评估 |
| The final residue and dietary risk assessment of tolfenpyrad, diafenthiuron and its metabolite on cabbage |
| 投稿时间：2024-11-28 修订日期：2025-04-02 |
| DOI： |
| 中文关键词: 甘蓝 唑虫酰按 丁醚脲 农药残留 膳食风险 |
| 英文关键词:cabbages tolfenpyrad diafenthiuron UPLC-MS/MS dietary risk |
| 基金项目:：国家重点研发项目(2022YFD1401200)；国家重点研发项目(No. 2023YFD1701300)。Fund: Supported by the National Key R D Program of China (No. 2022YFD1401200), the National Key R D Program of China (No. 2023YFD1701300) |
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| 中文摘要: |
| 目的 评估甘蓝中唑虫酰胺和丁醚脲的残留水平及其慢性膳食摄入风险, 为农药合理使用和食品安全提供科学依据。方法 采集喷施30%丁醚脲·唑虫酰胺悬浮剂的甘蓝样品, 采用分散固相萃取结合超高效液相色谱-三重四极杆串联质谱法检测农药残留量。基于检测结果, 通过风险概率公式计算慢性膳食摄入风险, 并进行安全性评估。结果 当30%丁醚脲·唑虫酰胺悬浮剂按照推荐最高剂量180 g a.i./hm2施药1次, 且安全间隔期为7 d时, 甘蓝中唑虫酰胺的残留浓度为<0.01~0.39 mg/kg, 丁醚脲的残留浓度为0.03~0.12 mg/kg。两种农药的残留量均低于我国规定的最大允许残留限量（唑虫酰胺0.5 mg/kg, 丁醚脲2.0 mg/kg）。结合我国农药登记使用情况, 普通人群对唑虫酰胺和丁醚脲的国家估算每日摄入量（NEDI）分别为0.2215 mg和0.0967 mg, 其风险概率分别为58.6%和51.2%, 均低于100%, 表明膳食摄入风险在可接受范围内。结论 按照推荐剂量和7 d安全间隔期使用30%丁醚脲·唑虫酰胺悬浮剂防治甘蓝小菜蛾时, 收获的甘蓝中农药残留量符合食品安全标准, 普通人群的长期膳食摄入风险可控, 食用安全性有保障。 |
| 英文摘要: |
| To evaluate the residual levels of tolfenpyrad and diafenthiuron in cabbage and assess the chronic dietary intake risk, providing a scientific basis for rational pesticide use and food safety. Methods Cabbage samples sprayed with 30% diafenthiuron·tolfenpyrad suspension concentrate were collected. The pesticide residues were detected using dispersive solid-phase extraction coupled with ultra-performance liquid chromatography-triple quadrupole tandem mass spectrometry. Based on the detection results, the chronic dietary intake risk was calculated using a risk probability formula, and a safety assessment was conducted. Results When 30% diafenthiuron·tolfenpyrad suspension concentrate was applied once at the maximum recommended dose of 180 g a.i./hm2 with a 7-day pre-harvest interval, the residual concentrations of tolfenpyrad and diafenthiuron in cabbage were <0.01–0.39 mg/kg and 0.03–0.12 mg/kg, respectively. Both pesticide residues were below China's maximum residue limits (MRLs) (0.5 mg/kg for tolfenpyrad and 2.0 mg/kg for diafenthiuron). Based on China's pesticide registration and usage data, the national estimated daily intake (NEDI) of tolfenpyrad and diafenthiuron for the general population was 0.2215 mg and 0.0967 mg, respectively, with risk probabilities of 58.6% and 51.2%, both below 100%. This indicates that the dietary intake risk is within an acceptable range.. Conclusion When 30% diafenthiuron·tolfenpyrad suspension concentrate is applied at the recommended dose with a 7-day pre-harvest interval for controlling Plutella xylostella in cabbage, the pesticide residues in harvested cabbage comply with food safety standards. The long-term dietary intake risk for the general population is controllable, ensuring safe consumption. |
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