The PCA decomposition doesn't look like it captures well your artifact.
Try with ICA: https://neuroimage.usc.edu/brainstorm/Tutorials/Epilepsy#Artifact_cleaning_with_ICA
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The PCA decomposition doesn't look like it captures well your artifact.
Try with ICA: https://neuroimage.usc.edu/brainstorm/Tutorials/Epilepsy#Artifact_cleaning_with_ICA