"The survey of pesticides,polycyclic aromatic hydrocarbons,pheno
「"The survey of pesticides,polycyclic aromatic hydrocarbons,pheno」於資料集「EPQSummary_SoilAndGroundwater」由單位「行政院環境保護署」的郭先生所提供，聯繫電話是02-2311-7722 EXT.2399，最近更新時間為：2022-01-15 01:13:52。 欄位Project Title的內容是"The survey of pesticides,polycyclic aromatic hydrocarbons,phenols,phthalates,and organotins in soil" ， 欄位Project Subject的內容是"Pesticides, phenols, phthalates, and organotins were heavily used and polycyclic aromatic hydrocarbons (PAHs) were widely generated from air pollution, such as transportation and combustion. All the above chemicals may run off via rain or air deposition to the river, ground water, sediment, and soil. Since most conditions in soil and sediment are anaerobic, the above compounds may exist in the environment persistently; consequently, the residue level in soil or sediment may represent a long term trend of pollution. Although there are some existing methods available on analyzing these compounds, there is none can analyze these groups together.This study developed a method for detecting 79 important environmental pollutants, including 11 organophosphates, 5 carbamates, 7 pyrethroids, 8 phthalates, 16 phenols, 24 PAHs (containing the 16 EPA priority PAHs), and 8 organotins, in soil and sediment, using ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) and gas chromatography tandem mass spectrometry (GC-MS/MS). Soils and sediments samples were treated with QuEChERS and the extracts were analyzed using UPLC-MS/MS with electrospray ionization (ESI) for insecticides, phthalates, and organotins, and atmospheric pressure photoionization (APPI) with post-column addition of anisole as a dopant for PAHs; phenols were analyzed with GC-MS/MS using electron ionization (EI). Data acquisition were at multiple-reaction monitoring (MRM) mode with monitoring two ion transitions at each analyte, and the quantitation were done with isotope-dilution techniques.The limits of detection of soil and sediment ranged most from few to tens of ng/g (wet weight) and 30 to 180 ng/g (wet weight). The square of regression coefficients (r2) of calibration curves were higher than 0.990. The matrix effect factors of analytes were most between 70-130%, and the use of isotope-labeled internal standards can cancel out the effects on quantitation resulting from matrix effects or variations of extraction efficiency, then reached good recoveries (most between 75-130%). For method validation, 40 real samples were analyzed, including 16 river sediments, two sludge from a water treatment plant, four sediment samples from two harbors, 13 soil samples around rivers, and 5 soil samples from industrial parks. Among the analytes, phthaltes and PAHs were in higher positive rates in the real samples. This study established the initial precision and recovery (IPR) and two drafts of standard analytical procedures for the National Institute of Enviromental Analysis." ， 欄位Project Year的內容是2014 ， 欄位Organizer的內容是"Environmental Analysis Laboratory" ， 欄位Executive Unit的內容是"國立臺灣大學公共衛生學院環境衛生研究所" ， 欄位Reporting download URL的內容是https://epq.epa.gov.tw/project/filedownload.aspx?fid=74365 ， 欄位Publish Date的內容是20150201 。
Project Title
"The survey of pesticides,polycyclic aromatic hydrocarbons,phenols,phthalates,and organotins in soil"
Project Subject
"Pesticides, phenols, phthalates, and organotins were heavily used and polycyclic aromatic hydrocarbons (PAHs) were widely generated from air pollution, such as transportation and combustion. All the above chemicals may run off via rain or air deposition to the river, ground water, sediment, and soil. Since most conditions in soil and sediment are anaerobic, the above compounds may exist in the environment persistently; consequently, the residue level in soil or sediment may represent a long term trend of pollution. Although there are some existing methods available on analyzing these compounds, there is none can analyze these groups together.This study developed a method for detecting 79 important environmental pollutants, including 11 organophosphates, 5 carbamates, 7 pyrethroids, 8 phthalates, 16 phenols, 24 PAHs (containing the 16 EPA priority PAHs), and 8 organotins, in soil and sediment, using ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) and gas chromatography tandem mass spectrometry (GC-MS/MS). Soils and sediments samples were treated with QuEChERS and the extracts were analyzed using UPLC-MS/MS with electrospray ionization (ESI) for insecticides, phthalates, and organotins, and atmospheric pressure photoionization (APPI) with post-column addition of anisole as a dopant for PAHs; phenols were analyzed with GC-MS/MS using electron ionization (EI). Data acquisition were at multiple-reaction monitoring (MRM) mode with monitoring two ion transitions at each analyte, and the quantitation were done with isotope-dilution techniques.The limits of detection of soil and sediment ranged most from few to tens of ng/g (wet weight) and 30 to 180 ng/g (wet weight). The square of regression coefficients (r2) of calibration curves were higher than 0.990. The matrix effect factors of analytes were most between 70-130%, and the use of isotope-labeled internal standards can cancel out the effects on quantitation resulting from matrix effects or variations of extraction efficiency, then reached good recoveries (most between 75-130%). For method validation, 40 real samples were analyzed, including 16 river sediments, two sludge from a water treatment plant, four sediment samples from two harbors, 13 soil samples around rivers, and 5 soil samples from industrial parks. Among the analytes, phthaltes and PAHs were in higher positive rates in the real samples. This study established the initial precision and recovery (IPR) and two drafts of standard analytical procedures for the National Institute of Enviromental Analysis."
Project Year
2014
Organizer
"Environmental Analysis Laboratory"
Executive Unit
"國立臺灣大學公共衛生學院環境衛生研究所"
Reporting download URL
Publish Date
20150201
「"The survey of pesticides,polycyclic aromatic hydrocarbons,pheno」所屬的資料集：「EPQSummary_SoilAndGroundwater」的其他資料
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" 無"2017" 無"
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