Yiping Liu, Ya Zhang, Shuangqing Liu, 等. Distribution and degradation kinetics of cyhalodiamide in Chinese rice field environment[J]. 中国化学工程学报(英文版), 2018,26(10):2185-2191.
Yiping Liu, Ya Zhang, Shuangqing Liu, Yuntao Lü, Ronghua Lin, Min Li, Xiaolan Liao, Xiaogang Li. Distribution and degradation kinetics of cyhalodiamide in Chinese rice field environment[J]. Chin.J.Chem.Eng., 2018, 26(10): 2185-2191.
Yiping Liu, Ya Zhang, Shuangqing Liu, 等. Distribution and degradation kinetics of cyhalodiamide in Chinese rice field environment[J]. 中国化学工程学报(英文版), 2018,26(10):2185-2191.DOI: 10.1016/j.cjche.2018.07.003.
Yiping Liu, Ya Zhang, Shuangqing Liu, Yuntao Lü, Ronghua Lin, Min Li, Xiaolan Liao, Xiaogang Li. Distribution and degradation kinetics of cyhalodiamide in Chinese rice field environment[J]. Chin.J.Chem.Eng., 2018, 26(10): 2185-2191.DOI: 10.1016/j.cjche.2018.07.003.
Distribution and degradation kinetics of cyhalodiamide in Chinese rice field environment
Cyhalodiamide is a novel agrochemical which is effective against Lepidoptera pests
including Cnaphalocrocis medinalis
Chilo suppressalis
Pieris rapae
Plutella xylostella
Helicoverpa armigera
etc. In the study
a fast and accurate analytical method was developed to detect cyhalodiamide in Chinese typical rice field environment by a modified QuEChERS (Quick
Easy
Cheap
Effective
Rugged
Safe) method with UPLC-MS/MS (ultra-high performance chromatography-tandem mass spectrometry). The mean recoveries of cyhalodiamide varied from 73.5% to 107.5%
with the RSDs from 1.2% to 10.7%. The limits of determination (LODs) were 0.0005 mg·kg
-1
and the limits of quantitation (LOQs) were from 0.002 to 0.01 mg·kg
-1
in all five matrices. This method was used to determine cyhalodiamide residues for studies of the distribution and degradation kinetics in rice field environment. The field trials results showed that cyhalodiamide was easily degradable and the half-lives were 4.2-13.6 d in rice straw
8.77 d in paddy soil and 5.37-8.45 d in paddy water
respectively. The final residues of cyhalodiamide in brown rice were below 0.35 mg·kg
-1
. The used dosage
of 33.75 g·hm
-2
with pre-harvest interval (PHI) of 21 d and the maximum residue limit (MRL) of cyhalodiamide in rice at 0.1 mg·kg
-1
were recommended
which would be safe to human health and environment. The developed analytical method will be useful to monitor cyhalodiamide residues and safety evaluation in rice environment.
关键词
Keywords
references
The trial reading is over, you can activate your VIP account to continue reading.
Insight into the degradation mechanism of cefixime under crystallization condition
Experimental and numerical studies of holdup and velocity behavior for inclined bubbly oil-water pipe flows
Enhanced plasma-catalytic steam reforming of methane to methanol on a hydrophobically modified Cu/silicalite-1 catalyst
Biochar as a structure-tunable stationary phase for column chromatographic fractionation of bio-oil
Enhanced mass transfer in flexible electrodes of open-pore cobalt disulfide nanosheets supported on sulfur-doped carbon fibers for efficient zinc-air batteries
相关作者
Lingyu Wang
Xiaona Li
Yumin Liu
Dandan Han
Shiyuan Liu
Teng Zhang
Bo Yu
Junbo Gong
相关机构
School of Chemical Engineering and Technology, Tianjin University