1.1 This test method covers a liquid-chromatographic procedure for the separation of primary and secondary antioxidant and slip additives currently used in polyethylene plastics. These additives are extracted with either isopropanol (resin densities < 0.94 g/cm³) or cyclohexane (resin densities > 0.94 g/cm³) prior to liquid-chromatographic separation. The ultraviolet absorbance of the eluting compound(s) is measured and quantitation is performed using external calibration.
Product Details
- Published:
- 11/01/2018
- Number of Pages:
- 7
- File Size:
- 1 file , 130 KB
- Redline File Size:
- 2 files , 260 KB
