ASTM E2154用带有固相微量萃取(SPME)的无源液上浓缩法对燃烧废墟样品中易燃液体残留物进行分离和浓缩的标准规范
日期:2012-02-08 10:29
queous samples.
1.3 This practice is suitable for extracting ignitable liquid residues when a high level of sensitivity is required due to a very low concentration of ignitable liquid residues in the sample.
1.3.1 Unlike other methods of separation and concentration, this method recovers a minimal amount of the ignitable residues present in the evidence, leaving residues that are suitable for subsequent resampling.
1.4 Alternate separation and concentration procedures are listed in Section 2.
1.
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