The US EPA method 502.1 is an analytical method that uses a purge & trap device for sample prep and a gas chromatograph equipped with a packed column to perform the separation of the volaile halogenated components found in a 5 mL sample of drinking or rawsource water. To detect the GC eluant, a Hall detecor is used. 

SURROGATE STANDARD 
1种液体有机挥发物标样 

4-Bromofluorobenzene 

Catalog#: 5242-S1：1.2 mL @ 2000 µg/ml in METH-P&T

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