Sasaki K, Tatsuno T, Nakamura M, Kaneko M, Goto N, Kondo Y, Takahata K, Miura Y, Toyoda M
National Institute of Health Sciences: 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan.
Shokuhin Eiseigaku Zasshi. 2001 Jun;42(3):210-4. doi: 10.3358/shokueishi.42.210.
Method-performance studies were conducted for the notified revised analytical method of fenbutatin oxide (FBTO) and cyhexatin (CHT). FBTO and CHT spiked into rice, soybeans, spinach, orange, tea powder and tea extract at the level of 0.5 microgram/g for FBTO and 0.1 microgram/g for CHT were analyzed in replicate in 6 laboratories. Means recoveries of FBTO were 85.2-96.5% and those of CHT were 83.5-89.2% except from soybeans (46.5%). Repeatability relative standard deviation values of FBTO and CHT in each crop were in the ranges of 2.3-9.4% and 3.2-6.3%, respectively. Reproducibility relative standard deviations were 3.9-12.6% for FBTO and 8.3-12.9% for CHT. Detection limits were 0.015-0.05 microgram/g for FBTO and 0.005-0.02 microgram/g for CHT.
针对已通报的三唑锡（FBTO）和三环锡（CHT）分析方法修订版开展了方法性能研究。将FBTO和CHT分别以0.5微克/克（FBTO）和0.1微克/克（CHT）的水平添加到大米、大豆、菠菜、橙子、茶粉和茶提取物中，在6个实验室进行重复分析。除大豆（46.5%）外，FBTO的平均回收率为85.2 - 96.5%，CHT的平均回收率为83.5 - 89.2%。FBTO和CHT在每种作物中的重复性相对标准偏差值分别在2.3 - 9.4%和3.2 - 6.3%范围内。FBTO的再现性相对标准偏差为3.9 - 12.6%，CHT为8.3 - 12.9%。FBTO的检测限为0.015 - 0.05微克/克，CHT为0.005 - 0.02微克/克。
