title: [Study of DNA examination in trace sample by carrier method].
abstract: OBJECTIVE
  To solve the problems of DNA testing in trace sample.
  
  
  METHODS
  Applying original carrier method to detect known trace blood DNA and to compare it with the results obtained by high effective DNA extracting method of Chelex-100.
  
  
  RESULTS
  The carrier method not only could obtain the right STR genotype in the trace blood sample, but also was twice as sensitive as the Chelex-100 method.
  
  
  CONCLUSIONS
  The carrier method could improve the DNA detection in trace sample. It is easy to operate and is much more valuable in the forensic case analysis.
authors.affiliation: Institute of Criminal Science, Zhenjiang Public Security Bureau, Zhenjiang 212001, China. zjmky@yahoo.com.cn
authors.forename: Kun-Yun
authors.initials: KY
authors.lastname: Mao
authors.forename: Jian-Qing
authors.initials: JQ
authors.lastname: Zhou
authors.forename: Xi-Meng
authors.initials: XM
authors.lastname: Gu
authors.forename: Hong-Yan
authors.initials: HY
authors.lastname: Jiang
authors.forename: Yu
authors.initials: Y
authors.lastname: Wang
authors.forename: Jia-Jia
authors.initials: JJ
authors.lastname: Chen
mesh_terms: D004247:DNA / Q000097:blood* / Q000235:genetics; D005838:Genotype; D006801:Humans; D012117:Resins, Synthetic; D012680:Sensitivity and Specificity; D013048:Specimen Handling / Q000379:methods*; D020080:Tandem Repeat Sequences / Q000235:genetics
chemical_list: D012117:Resins, Synthetic; C024997:Chelex 100; D004247:DNA