WLN-CO.W.02.1	Determination of volatile organic components by means of head-space and GC-MS	in-house method
Principle:	A water sample is heated. The volatile compounds are injected from the head-space, trapped on a cold-trap and by thermal desorption transferred to the analytical column. The volatile compounds are gaschromatically separated and detected by a mass selective detector.
Determination:	Aromatic and aliphatic hydrocarbons
Performance characteristics:
Matrices qualified by the Dutch RvA:	Drinking water, Groundwater, Surface water
Reporting limit:	0.02 - 0.1 μg/l, parameter and matrix dependent
Measurement uncertainty:	35%
Sustainability:	7 days , if conserved with H2SO4
Sampling bottle:	Glass , brown , 200 ml , conservation with H2SO4 (fill up to cap)
Parameters:
(RL = 0.02 μg/l)	benzene; toluene; ethylbenzene; n-propylbenzene; iso-propylbenzene; n-butylbenzene; iso-butylbenzene; secundary-butylbenzene; tertiary-butylbenzene; n-pentylbenzene; o-xylene; m+p-xylene; 4-isopropyltoluene; 1,2,3-trimethylbenzene; 1,2,4-trimethylbenzene; 1,3,5-trimethylbenzene; 1,2,3,4-tetramethylbenzene; 1,2,3,5-tetramethylbenzene; 1,2,4,5-tetramethylbenzene; 2-ethyltoluene; 3-ethyltoluene; 4-ethyltoluene; 1,2-diethylbenzene; 1,3-diethylbenzene; 1,4-diethylbenzene; 1,3-diisopropylbenzene; 1,3,5-triisopropylbenzene (not accreditated); styrene; naphthalene; chlorobenzene; 1,2-dichlorobenzene; 1,3-dichlorobenzene; 1,4-dichlorobenzene; 1,2,3-trichlorobenzene; 1,2,4-trichlorobenzene; 1,3,5-trichlorobenzene; 2-chlorotoluene; 4-chlorotoluene; cyclohexene; 1,2,3,4-tetrachlorobenzene; 1,2,3,5+1,2,4,5-tetrachlorobenzene; bromobenzene
(RL = 0.05 μg/l)	biphenyl; biphenylether
(RL = 0.1 μg/l)	cyclohexane; methylcyclohexane

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[ 07-04-2023 23:15:49 ]