For use in the laboratory in conjunction with the use of gas co (GC-FPD) to rama master graph analysis can check no 5 group organic phosphorus residue in sample type fresh longan fortified sample techniques include: diazinon, malathion, chlorpyrifos, pirimiphos-methyl and ethion capillary column, using a type (5%-phenyl)-found that the range of methylpolysiloxane measure and in a straight line between 0.005-5 Ku/kg (R2 > 0.995) when specific tests have been relative standard deviation (% RSD) of delay time in the range of 0.053 to 1.178% and separate each type of khasan > 1.0 p values testing method by finding maen percent return at a low concentration, medium and high of residue.
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