Nakajima Takayuki, Otsuka Kenji, Tomizawa Sanae, Masubuchi Tamako, Kamijo Kyoko, Yamaki Yumiko, Yoshikawa Souichi, Hasegawa Emi, Kokaji Yoshie, Watanabe Shui, Hashimoto Tsuneo
Tokyo Metropolitan Institute of Public Health.
Shokuhin Eiseigaku Zasshi. 2018;59(5):234-238. doi: 10.3358/shokueishi.59.234.
We measured the residual amounts of chlorantraniliprole in various vegetables and fruits. Sample solutions were prepared according to our routine procedure based on the QuEChERS method and analyzed by LC-MS/MS. Performance characteristics were evaluated for 8 kinds of food samples by means of recovery tests of 5 replicates at the concentration of 10 ng/g. Recoveries and RSDs (％) ranged from 50.2 to 93.4％ and from 2.1 to 9.7％, respectively. Application of this method to survey 207 vegetables and 163 fruits gave detection rates of 8.2 and 1.2％, respectively. In vegetables, detection rates were high in okra (4 out of 10 samples), paprika (4 out of 23 samples) and tomato (2 out of 6 samples), and leaf vegetables such as lettuce, mizuna, spinach and wrinkled greens also contained high concentrations of chlorantraniliprole. The highest residual concentration was 571 ng/g in mizuna. The samples containing chlorantraniliprole seemed to be mainly from Asian countries, including samples of domestic Japanese origin. However, none of them contained more than the MRL, which suggests that the use of chlorantraniliprole has been properly controlled.
我们测定了多种蔬菜和水果中氯虫苯甲酰胺的残留量。按照基于QuEChERS方法的常规程序制备样品溶液，并通过液相色谱-串联质谱法进行分析。通过在10 ng/g浓度下进行5次重复的回收率测试，对8种食品样品的性能特征进行了评估。回收率和相对标准偏差（％）分别为50.2％至93.4％和2.1％至9.7％。将该方法应用于207种蔬菜和163种水果的检测，检出率分别为8.2％和1.2％。在蔬菜中，秋葵（10个样品中有4个）、甜椒（23个样品中有4个）和番茄（6个样品中有2个）的检出率较高，生菜、水菜、菠菜和皱叶青菜等叶菜类蔬菜中也含有高浓度的氯虫苯甲酰胺。水菜中的最高残留浓度为571 ng/g。含有氯虫苯甲酰胺的样品似乎主要来自亚洲国家，包括日本国内的样品。然而，它们均未超过最大残留限量，这表明氯虫苯甲酰胺的使用已得到妥善控制。
