|
| Study on the detection method of dechlorane plus residue in soil and rice |
| Received:May 14, 2020 |
| View Full Text View/Add Comment Download reader |
| KeyWord:high chlorinated flame retardant;syn-DP;anti-DP;accelerated solvent extraction;oscillation extraction;GC-MS/MS;soil;rice |
| Author Name | Affiliation | | XIE Hui | College of Resources and Environment, Shandong Agricultural University, Key Laboratory of Agricultural Environment, Shandong Tai'an 271018
National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Tai'an 271018, China | | CHANG Xiao-yun | College of Resources and Environment, Shandong Agricultural University, Key Laboratory of Agricultural Environment, Shandong Tai'an 271018 | | MA Yu-han | College of Resources and Environment, Shandong Agricultural University, Key Laboratory of Agricultural Environment, Shandong Tai'an 271018 | | WANG Yu-ying | College of Resources and Environment, Shandong Agricultural University, Key Laboratory of Agricultural Environment, Shandong Tai'an 271018 |
|
| Hits: 2397 |
| Download times: 1897 |
| Abstract: |
| To explore the methodology of determination of high chlorinated flame retardant dechlorane plus (DP)with good selection and high sensitivity, oscillation extraction and accelerated solvent extraction (ASE)were used to extract the residues of two isomers from soil and rice. The DP in the extracted residue from soil and rice was analyzed and detected by TSQ 8000 triple quadrupole rod gas chromatography-mass spectrometry (GC-MS)/mass spectrometry (MS). The results showed that the retention time of the syn-DP and antiDP was suitable for the determination, with the linear range of 5.00×10-13~4.02×10-9 g and 1.62×10-12~1.30×10-8 g and the lowest detection limit of 1.00×10-13 g and 5.0×10-14 g. For syn-DP in soil samples, the recovery rates of oscillatory extraction and ASE method were 85.32%~91.42% and 90.69%~95.63%, respectively, and the coefficients of variation were less than 4.64%. For anti -DP, the recovery rates of oscillatory extraction and ASE method were 82.45%~90.16%, and 88.78%~98.23%, respectively, and the coefficients of variation were less than 4.96%. The recovery of ASE of syn-DP and anti-DP in rice was 90.56%~98.56% and 90.36%~96.56%, respectively, the coefficient of variation was less than 5.05%, and the recovery of oscillatory extraction was 86.47%~90.24% and 85.84%~89.61%, respectively, and the coefficient of variation was less than 4.53%, meeting the requirements of trace syn-DP and anti-DP residue analysis. In this study, the recovery rates of both ASE and oscillation extraction of two different pretreatment samples could meet the requirements of the trace residue detection and analysis method of DP obtained from soil and rice samples, which is sensitive, accurate, and suitable for the residue detection of DP obtained from soil and rice. It is important to establish a method for the determination of trace DP in soil and rice by GC-MS/MS. |
|
|
|
