Question/Answer
If I use the G-1101 step saver system, will i need the hexane, acetone and sodium sulfate to run EPA 1664 A?
The StepSaver system is for using solid phase extraction (SPE) to determine Oil and Grease. The extraction solvent is n-hexane as required by the EPA. Once extracted, the solvent is passed through a sodium sulfate cartridge to remove any residual water. The only use for acetone is to make the 40 mg/L hexadecane/stearic acid standard, however this can be avoided by using G3025 or G3020 prepared standards. SPE does require activation of the disc, which is accomplished by the use of methanol. To see the StepSaver in use and learn more about its advantages please watch the StepSaver video here. http://www.envexp.com/video