For the follow-up study on total As in PG/VG blanks, ICP-MS instrumentation and methods were the same as used in the primary analyses with one notable difference due to laboratory capabilities: for matrix-matching, rather than carbon dioxide option gas, a high sample dilution (40 fold) and matrix-matched external calibration using a PG/VG (30/70, 40 fold dilution) were employed
As more jurisdictions adopt these policies, continued monitoring will help determine how enforcement, policy design and community context shape their public health impact. Additional co-authors on the study include: David Strong, PhD, Dennis R
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Ross keeps his cellphone in his left hand and pulls out his gun with his right....A Star Tribune analysis of multiple video angles appears to show Ross firing three shots at close range
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