Abstract
Pentachlorophenol (PCP) and sodium pentachlorophenate (PCP-Na) are both organochlorine pesticides. Excessive use of PCP-Na can cause water and soil pollution. In this study, a new method was established to verify the residual amount of PCP-Na in samples through the combination of PAX solid-phase extraction and ultra-high performance liquid chromatography-tandem mass spectrometry. The sample containing PCP-Na was extracted with acetonitrile solution and subjected to PAX anion solid-phase extraction. After eluting with acid methanol solution, the content of PCP was separated and detected on the ultraperformance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). The method has good detection performance in the PCP-Na at the concentration range of 1–20 ug/L, and the experimental method is simple to operate and accurate. The result shows that different types of solid extraction impact the detection ability of PCP-Na. Using a suitable extraction column can effectively reduce the impact of impurities on the detection of PCP-Na. The ceramic homogenizer addition can make the recovery rate of PCP-Na in the test sample higher. The recovery rate of PCP-NA of frozen-extracted samples is higher than that of samples that have not been frozen-extracted. It is recommended that samples processed under frozen-extracted and ceramic homogenizer addition can obtain better separation results.
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Data Availability
The data that support the findings of this study are available from the corresponding author upon reasonable request.
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Funding
The authors thank the Guangxi University for Nationalities Introduced Talents Scientific Research Start-up Project (Grant Number 2021KJQD27). This work was also supported by the Scientific Research & Technology Development Project of Qingxiu District, Nanning City, Guangxi (Grant Number 2015Z01).
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Xin, L., Jiang, D., Liang, F. et al. A New Method for Detecting Environmental Pollutant Sodium Pentachlorophenate (PCP-Na) Based on PAX Solid-Phase Extraction and UPLC-MS/MS. Water Air Soil Pollut 233, 51 (2022). https://doi.org/10.1007/s11270-022-05511-1
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DOI: https://doi.org/10.1007/s11270-022-05511-1