WitrynaThis method describes a procedure for isolating target organic analytes from aqueous samples using solid-phase extraction (SPE) media. The method describes conditions … Witryna1.1 Method 3600 provides general guidance on selection of cleanup methods that are appropriate for the target analytes of interest. Cleanup metho ds are applied to the extracts prepared by one of the extraction methods, to eliminate sample interferences. 1.2 The following table lists the cleanup methods and provides a brief description of …
NEMI Method Summary - 8033
WitrynaCD-ROM 8430 - 4 Revision 0 December 1996 5.5.1 Prepare, in organic-free reagent water, a stock standard solution containing all of the target analytes at a concentration of 1000 mg/L. Record the actual weight of eac h compound added and calculate the actual concentration of each component of the solution. 5.5.2 Tra nsfer the stock standard … WitrynaThis method cannot be used to cleanup extracts for other target analytes, as it will destroy most organic chemicals including the pesticides Aldrin, Dieldrin, Endrin, Endosulfan (I and II), and Endosulfan sulfate. 2.0 SUMMARY OF METHOD 2.1 An extract is solvent exchanged to hexane, then the hexane is sequentially treated with … san saba home health
NEMI Method Summary - 3535A
WitrynaAll thes e materials must be d emonstrated to be free from interferences under the conditions of the analysis, by analyzing reagent blanks. 4.0 APPARATUS AND MATERIALS 4.1 Gas chromatograph - An analy tical system complete with a gas chromatograph suitable for on-column and split/splitless injection, and all necessary … WitrynaMETHOD 3535A SOLID-PHASE EXTRACTION (SPE^ 1.0 SCOPE AND APPLICATION 1.1 This method describes a procedure for isolating target organic analytes from … Witryna3 lis 2024 · As noted in Sec. 8.2.1.8 of Method 5035A, samples may be held for up to 48 hours before analysis, or before transfer to the glass vials used for the closed-system … short loop negative feedback examples