TY - JOUR
T1 - Quality assurance and quality control of solid phase extraction for PFAS in water and novel analytical techniques for PFAS analysis
AU - Taniyasu, Sachi
AU - Yeung, Leo W.Y.
AU - Lin, Huiju
AU - Yamazaki, Eriko
AU - Eun, Heesoo
AU - Lam, Paul K.S.
AU - Yamashita, Nobuyoshi
N1 - Publisher Copyright:
© 2021
PY - 2022/2
Y1 - 2022/2
N2 - An inter-laboratory trial (ILT) has been performed to validate ISO 21675 method for the measurement of per-and polyfluoroalkyl substances (PFAS) in water samples using solid phase extraction method and high-performance liquid chromatography-tandem mass spectrometry. A total of twenty-seven laboratories from eleven countries (Belgium: 1, Canada: 2, China: 2, France: 1, Germany: 3, Italy: 2, Japan: 6, Netherlands: 2, South Korea: 1, Sweden: 4, and USA: 3) participated in the ILT. Results of the homogeneity of ILT water samples showed that the repeatability tended to increase from short-chain to long-chain of PFAS. Results of stability of PFAS in Milli-Q water stored at 5 ± 3 °C ranged from 75% to 121% including those ultra-short-chain compounds, except for N-MeFOSA (44%), N-EtFOSA (44%), and 8:2 FTOH (30%) at 168 days. As for stability of PFAS in environmental waters, they were in acceptable range (between 70 and 125%) for most of PFAS, except for 8:2 FTUCA in the river water, seawater, and wastewater, and 8:2 FTSA and 8:2 FTOH in wastewater. Based on the performance data (reproducibility (CVR): <40%, recoveries (η): 70–125%) of the ILT, current ISO 21675 is validated for up to 30 PFAS depending on water type. Novel analytical techniques namely “In-situ Solid Phase Extraction” and the “Purge and Trap Extraction” were developed and explored to measure volatile PFAS. Preliminary results showed acceptable recoveries for volatile PFAS such as fluorotelomer alcohols and iodides in spiked Milli-Q water.
AB - An inter-laboratory trial (ILT) has been performed to validate ISO 21675 method for the measurement of per-and polyfluoroalkyl substances (PFAS) in water samples using solid phase extraction method and high-performance liquid chromatography-tandem mass spectrometry. A total of twenty-seven laboratories from eleven countries (Belgium: 1, Canada: 2, China: 2, France: 1, Germany: 3, Italy: 2, Japan: 6, Netherlands: 2, South Korea: 1, Sweden: 4, and USA: 3) participated in the ILT. Results of the homogeneity of ILT water samples showed that the repeatability tended to increase from short-chain to long-chain of PFAS. Results of stability of PFAS in Milli-Q water stored at 5 ± 3 °C ranged from 75% to 121% including those ultra-short-chain compounds, except for N-MeFOSA (44%), N-EtFOSA (44%), and 8:2 FTOH (30%) at 168 days. As for stability of PFAS in environmental waters, they were in acceptable range (between 70 and 125%) for most of PFAS, except for 8:2 FTUCA in the river water, seawater, and wastewater, and 8:2 FTSA and 8:2 FTOH in wastewater. Based on the performance data (reproducibility (CVR): <40%, recoveries (η): 70–125%) of the ILT, current ISO 21675 is validated for up to 30 PFAS depending on water type. Novel analytical techniques namely “In-situ Solid Phase Extraction” and the “Purge and Trap Extraction” were developed and explored to measure volatile PFAS. Preliminary results showed acceptable recoveries for volatile PFAS such as fluorotelomer alcohols and iodides in spiked Milli-Q water.
KW - In-situ SPE
KW - Inter-laboratory trial (ILT)
KW - Performance data
KW - Purge and trap extraction
KW - Volatile PFAS
UR - http://www.scopus.com/inward/record.url?scp=85116554671&partnerID=8YFLogxK
U2 - 10.1016/j.chemosphere.2021.132440
DO - 10.1016/j.chemosphere.2021.132440
M3 - Article
C2 - 34626648
AN - SCOPUS:85116554671
SN - 0045-6535
VL - 288
JO - Chemosphere
JF - Chemosphere
M1 - 132440
ER -
