简介:2.1 A representative 45 mL aqueous sample is digested in 5 mL of
concentrated nitric acid in a fluorocarbon (PFA or TFM) digestion vessel for 20
minutes using microwave heating. After the digestion process, the sample 简介:2.1 A representative 45 mL aqueous sample is digested in 5 mL of
concentrated nitric acid in a fluorocarbon (PFA or TFM) digestion vessel for 20
minutes using microwave heating. After the digestion process, the sample is
cooled, and then filtered, centrifuged, or allowed to settle in a clean sample
bottle prior to analysis.详细>