Search

Copyright of Journal of China Medical University is the property of Journal of China Medical University Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Brewing is the property of China Brewing Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Brewing is the property of China Brewing Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Shanghai Physical Education Institute / Shanghai Tiyu Xueyuan Xuebao is the property of Shanghai Physical Education Institute and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The residues of malathion in Cucurbita pepo. was determined using gas chromatography equipped with flame photometric detector (GC-FPD). The standard residue trials of malathion in C. pepo were carried out in Hunan, Shandong, Beijing, Anhui, Shanxi and Heilongjiang in 2016. The dietary intake risk assessment to different populations and different foods based on the residual data of malathion was conducted. The C. pepo samples were extracted with acetonitrile, determined by GCFPD after the displacement of acetonitrile with acetone. With the fortified level from 0.02 to 8.0 mg/kg in C. pepo samples, the recoveries ranged from 88% to 109% with the relative standard deviations (RSD) of 5%. The limit of quantitation (LOQ) of the method was 0.02 mg/kg. The dissipation dynamic test results obtained from Hunan and Shandong showed that malathion was easily degradable, and the half-life of malathion was 2.74-4.65 days. The final residues in C. pepo from six provinces were < 0.02- 0.049 mg/kg with interval 3, 5 and 7 days after last applied. The dietary risk assessment results showed that the national estimated daily intake (NEDI) was between 0.115-0.207 μg/(kg bw·d) and the risk quotients (RQ) were between 0.000 4-0.000 7 for different populations in China. The total dietary exposure risk assessment results indicated that the NEDI of malathion in all kinds of foods was 82.251 μg/(kg bw·d), and the RQ was 0.275 1, which demonstrated that malathion applied to C. pepo had low risk. The maximum residue limit (MRL) of malathion in C. pepo is recommended to be 0.1 mg/kg in China, which would ensured dietary intake safety of C. pepo. [ABSTRACT FROM AUTHOR]

Copyright of Transactions of the Chinese Society of Agricultural Engineering is the property of Chinese Society of Agricultural Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)