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Most Current Recovery vs Concentration Charts for NWQL LS 4437


The recovery versus concentration charts provide OBSP recovery information for every analyte at different concentrations for every schedule OBSP assesses.

The black line on the chart describes the median recovery of the data.


The charts and data that you might secure from this U.S. Geological Survey (USGS) web page (identified as "OBSP") have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.
Lab Schedule 4437 - NAWQA Heat purgeable volatile organic compounds - Preliminary Data (Unapproved)
Choose an analyte below or click here for all analytes sorted by NWQL parameter code Parameter CAS#
1,1-Dichloro-2-propanone 80336GM016 513-88-2
1,2,3-Trichloropropane 77443GM016 96-18-4
1,2-Dibromo-3-chloropropane 82625GM016 96-12-8
1,2-Dibromoethane 77651GM016 106-93-4
1,2-Dichloropropane 34541GM016 78-87-5
1,3-Dioxolane 81583GM016 646-06-0
1,4-Dioxane 81582GM016 123-91-1
1Methoxy-4(2-propenyl)benzene 68066GM016 140-67-0
1-octanol 77310GM016 111-87-5
2-ethoxyethyl acetate 68728GM016 111-15-9
2-hexanone, 5-methyl- 77179GM016 110-12-3
2-Nitropropane 77076GM016 79-46-9
2-pentanol, 4-methyl- 77113GM016 108-11-2
2-Propen-1-ol 68729GM016 107-18-6
4-heptanone, 2,6-dimethyl- 77419GM016 108-83-8
acetate, ethyl 81585GM016 141-78-6
acetate, isobutyl 77201GM016 110-19-0
acetate, isopropyl 45013GM016 108-21-4
acetate, propyl 45022GM016 109-60-4
acetonitrile 76997GM016 75-05-8
Acrolein 34210GM016 107-02-8
alpha-Terpineol 68730GM016 98-55-5
Butanal 68732GM016 123-72-8
butanol 77034GM016 71-36-3
Chloropicrin 77548GM016 76-06-2
cyclohexanone 77097GM016 108-94-1
diethylamine, n-nitroso- 78200GM016 55-18-5
Dimethoxymethane 81578GM016 109-87-5
Hexachlorocyclopentadiene 34386GM016 77-47-4
hexanol, 2-ethyl- 77311GM016 104-76-7
Isophorone 34408GM016 78-59-1
isopropyl alcohol 77015GM016 67-63-0
Methyl acetate 77032GM016 79-20-9
Nitrobenzene 34447GM016 98-95-3
n-Pentanal 77061GM016 110-62-3
tert-Butyl alcohol 77035GM016 75-65-0
tert-Butyl methyl ether (MTBE) 78032GM016 1634-04-4
trans-Crotonaldehyde 68733GM016 123-73-9

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