9.8 As noted earlier, use of any extraction technique, including ultrasonic extraction, should be supported by data that demonstrate the performance of the specific solvent system and operating conditions for the analytes of interest, at the levels of interest, in the sample matrix.
9.8 Njengoba kuphawuliwe ekuqaleni, ukusetshenziswa kwanoma yiluphi uhlelo lokucubungula, kufaka phakathi isizinda se-ultrasonic, kufanele lusekelwe ngedatha ebonisa ukusebenza kwesistimu ethile yokuxazulula izinhlanzi kanye nezimo zokusebenza zabahlaziyi bezintshisekelo, emazingeni ezithakazelo, kwisitatimende samatriki.