PROGRESS OF PORTABLE RAPID DETECTOR OF CONTAMINATION IN FRUITS AND VEGETABLES
Rapid testing technology played a key role in managing the traceability system of agricultural products safety. The performance of a newly-developed portable rapid detector of contamination in fruits and vegetables (PRD) with GPS was tested in lab, by detecting the content of nitrite, heavy metal and pesticide in different samples. The detection range of nitrite, lead, phoxim, trichlorfon, carbofuran and methomyl was respectively 1.5-150μg/ml, 0.5-4.0μg/ml, 0.005-2.0μg/ml, 0.005-0.5μg/ml, 0.005-0.3μg/ml and 0.005-1.0μg/ml. Precision tests, made on different concentration levels, gave values of RSD in the ranges of 2.6-8.9％ for lead, and less than 2％ for nitrite, and the sensitivity of the four pesticides ranged from 31.368 to 62.05. The results show that, compared with Optizen 2120V-FT machine, the accuracy and precision of PRD for the three kinds of contamination can fairly meet the requirement of rapid detection. The PRD is more simple, rapid, portable and feasible for application.
Fast detection Nitrite Heavy metal Pesticide residue GPS
Yunxia Luan Ping Han Anxiang Lu Ligang Pan
Beijing Research Center for Agrifood Testing and Farmland Monitoring,Beijing 100097,China National engineering research center for information technology in agriculture,Beijing100097,China
国际会议
北京
英文
1-6
2009-10-14（万方平台首次上网日期，不代表论文的发表时间）