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2) The CCV standard shall be analysed at a frequency of 10% or every two hours during an analytical run
Pentabromotoluene
115383-22-7
Yellow in color
if the determined concentrations are not within ± 15% of the stated values
Retention gaps, CW (carbowax, polyethylene glycol), polar PFAS Sulfonamides N-ethyl 2) The CCV standard shallThe retention gap technique in combination with on column injection allows concentration of a large sample volume in the capillary column. Retention gaps consist of uncoated (no stationary phase), deactivated fused silica capillary tubing. A retention gap must be inert without any noticeable retention (analytes are not retained). Carbowax (CW, polyethyleneglycol, polar) deactivated is suitable for direct aqueous injection. Improve peak shape by
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