College of Science, China Agricultural University, Beijing 100193, People's Republic of China.
Bull Environ Contam Toxicol. 2012 Nov;89(5):1040-5. doi: 10.1007/s00128-012-0810-9. Epub 2012 Sep 16.
The dissipation and residues of flutriafol in wheat and soil under field conditions in Beijing, Anhui and Shandong in China were determined based on high performance liquid chromatography. Flutriafol were extracted with acetonitrile and cleaned up by solid-phase extraction with florisil cartridges before UV detection. The limits of detection and quantification of flutriafol were 0.04 ng and 0.01 mg/kg for both wheat and soil samples, respectively. The mean recoveries ranged from 93.4% to 96.4%, with relative standard deviation between 3.8% and 6.8% at three spiked levels (0.01, 0.1, 1.0 mg/kg). Half-lives were 13.3, 9.9 and 13.6 days in soil, while 15.2, 10.8 and 9.2 days in wheat plant in Beijing, Anhui and Shandong, respectively. The terminal residues of flutriafol were below the maximum residue limit 0.02 mg/kg set by Japan in wheat when pre-harvest interval were 35 days.
基于高效液相色谱法，在中国北京、安徽和山东的田间条件下，测定了氟环唑在小麦和土壤中的消解和残留情况。采用乙腈提取，弗罗里硅土柱固相萃取净化，经紫外检测。氟环唑在小麦和土壤样品中的检测限和定量限均为 0.04ng 和 0.01mg/kg。在 3 个添加水平（0.01、0.1、1.0mg/kg）下，平均回收率为 93.4%96.4%，相对标准偏差为 3.8%6.8%。在北京、安徽和山东，氟环唑在土壤中的半衰期分别为 13.3、9.9 和 13.6 天，在小麦植株中的半衰期分别为 15.2、10.8 和 9.2 天。在收获前间隔 35 天时，氟环唑在小麦中的终残留量低于日本设定的最大残留限量 0.02mg/kg。
