Part No: AN863Issued year: 2016File size: 1.62mbFile type: pdf
This application note describes the use of ISOLUTE® ENV+ on-line cartridges in a fully automated on-line SPE-LC-MS/MS method for extraction and quantification of 16 acid herbicides in drinking and surface water.
Part No: AN008-HORIssued year: 2009File size: 0.89mbFile type: pdf
EPA Method 525.2 describes the procedure to determine
low ppb levels of semi-volatile organic material in drinking
water using solid phase extraction (SPE) or liquid-solid
extraction (LSE) techniques. The extraction solvents are
methylene chloride and ethyl acetate. Extracts are analyzed
by GC/MS using a splitless injection technique.
Part No: AN007-HORIssued year: 2009File size: 0.64mbFile type: pdf
EPA Method 515.2 is applicable to the determination of
chlorinated acids in ground water and finished drinking
water. The form of each acid is not distinguished by this
method. Results are calculated and reported for each listed analyte as the total free acid. The analytes are extracted from the water using a DVB-Hydrophobic disk and the Horizon Technology SPE-DEXÒ 4770 Automated
Extraction System. The disk is extracted with Methylene
Chloride and the extract dried with sodium sulfate. The
extract is derivatized with diazomethane. Final analysis is by GC/ECD.
Part No: PPS428Issued year: 2016File size: 0.85mbFile type: pdf
This technical note describes the use of layered SPE columns in applications where multiple suites of analytes with a broad polarity range are to be extracted simultaneously from a single water sample, such as organochlorine, triazine and organophosphate pesticides, or endocrine disrupters.