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Each sample was spiked with two surrogate compounds to monitor the efficiency of the extraction procedure.
Surrogate compounds (haptens) must be attached to protein molecules (carriers) to be used as immunogens to produce antibodies to the hapten [ 3, 4].
Before extraction, each sample was spiked with the surrogate compounds PCB-30 and PCB-112 [International Union of Pure and Applied Chemistry IUPACC) nomenclature; Ballschmiter et al. 1992] to monitor the efficiency of the extraction procedure.
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and surrogate compound) was purchased from Supelco, USA.
1,2-Dichloroethane-d4 was applied as internal standard and surrogate compound in electron-capture detection.
Situations may arise where the surrogate compound does not co-vary with other toxicants in the mixture.
Since octa-BDD was quantified against C12-1,2,3,4,7,8-HxBDD, the recovery for octa-BDD may be lower than that of the labeled surrogate compound.
Deuterated 1,2-dichloroethane was used as internal standard and surrogate compound in quantitative analysis; application of isotopically labelled compounds is rarely reported when non-mass spectrometric detectors are used for analysis.
Deuterated 1,2-dichloroethane is attractive as an internal standard for compounds eluting close to 3.44 min or as a surrogate compound, as it may not be present in real samples.
The broad impact of our approach is demonstrated herein by reaction of C-methanol with BODIPY 11 to yield C-labeled 12a ([13C]-12a [13C]-12at MRI probe andirectogate coMRIund for C-probemandng.
These fuels, surrogates, and compounds were separately doped in trace quantities (0.5% by mass) into the fuel of a methane-air laminar coflow flame.
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