01 April 2010, Volume 0 Issue 1

    

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  Detection of basic abuse drugs in decay organism samples

  DI Yu-min，ZHU Jun，CHANG Jing

  Forensic Science And Technology. 2010, 0(1): 3.

  Abstract ( ) Download PDF Knowledge map Save

  Objective To provide a extraction，purification and instrumental analysis method for the determination of basic abuse drugs in decay organism samples．Methods Abuse drugs extracted from organism samples by liquid-liquid and solid phase extraction were detected and quantified with GC／MS and GC／NPD．Using cyclohexane as the extracted solvent。and the Bond-Elut Certify cartridge columns were washed with methanol，and eluted by dichloromethane：isopropyl alcohol：ammonium hydmxide (78：20：2，v／v／v)mixed solvent．Results The morphine。codeine，estazolam and promethazine were all simultaneously detected from liver，stomach，heart blood and urine of the dead．And the drug concentration in Iiver was morphine 0．094μ9／g，codeine 0．257μg／g，and promethazine 0．110μg／g，in urine was morphine 0．334μ9／ml，codeine 4．054μg／ml，and promethazine 0．066μ9／ ml，and in heart blood was morphine 0．036μg／ml，codeine 0．106μg／mL，and promethazine 0．088μg／mL Conclution This method is nicety，reliable，and scientific，and it can be used in the analysis of kinds of basic drugs in organism samples in forensic toxicology．
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  Refractive index measurement of glass sample in mixed oil of B and C

  GUO Hong-ling，QUAN Yang-ke，TAO Ke-ming，et a1

  Forensic Science And Technology. 2010, 0(1): 7.

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  Refractive index(RI)of the same glass sample was measured in mixed oil of B and C in different volume ratio and got RI value without considerable difference at 95％confidence level
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  Studies on composition of shots by XRF

  GUO Wei，GUO Hong-ling，SHI Hui-xia(

  Forensic Science And Technology. 2010, 0(1): 10.

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  Objective To study the capability of element analysis for distinguishing different brands of shots．Methods Thirty shots in six kinds of projeetiles were analyzed by XRF．The data were carried t-test．Results Shots in the same projectile can’t be distinguished，but those in different projectiles can be differentiated completely．Conclusion The analysis of Pb，Sb by XRF can distinguish different kinds of shots effectively．
Reviews
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  Use the dental image in human identification and its study advance TAN

  TAN Yu，TIAN Xue-mei，WANG Shi-an，et a1．

  Forensic Science And Technology. 2010, 0(1): 13.

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  Investigations of teeth，the most well preserved parts of the human body，have been proven a basic and valuable method in human identification．In this paper，summary the foreign researches about dental morphology's specificity，stability in human identification，review and outlook the method and technique that use the diverairy of dental patterns in the orthopantomog— raphy tO human identification．At last，assume and design the establishment of China's forensic odontology．
Technical Exchange
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  The analysis of car paint thickness by SEM

  LENG Ling，QUAN Yang-ke，SUN Zhen-wen，et a1．

  Forensic Science And Technology. 2010, 0(1): 16.

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  The thicknesses of 14 pieces of blue car paint boards with similar color，which are produced by different facto— ries，are analyzed by SEM(scan electrical microscopy)．The data of thickness are disposed by the SPSS(statistics program of SO— cial science)to carry t-test．The results show that the paint boards can be distinguished by total thicknesses and layered thickness．
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  Development of fingerprints using DFO．at ultra-low-temperature condition

  ZHANG Jian

  Forensic Science And Technology. 2010, 0(1): 20.

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  0bjective To study the enhancement technique of fingerprints developed by DFO(L 8 diazafluoren-9一one)． METHOD The fingerprints were treated with DFO reagent and then were put into refrigeration，change the in the temperature to一120℃at the rate of一20"C．RESULT The fingerprints were enhanced at the temperature of一40"C and 575nm light． CONCLUSION The fingerprints on papers can be developed effectively with this method．
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  Research on the relation between slope angle of duplicated trace and tooth slope angle

  MA Yuan-yuan，CHEN Hai-bo，AO Qi

  Forensic Science And Technology. 2010, 0(1): 23.

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  Objective To explore the the relation between slope angle of duplicated trace and tooth slope angle．Methods Similated to duplicate model keys in sameness nipping manner，then observe and summarize the slope angel of profile modeling reamer trace how to change．Result Different tooth slope angle has different slope angel．Conclusion In tooth shape keys， the tooth slope angel increases，along with slope angle of duplicated trace decrease．
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  The study of Hungarian Red developing latent blood shoeprints

  GE Da-yong，ZHANG Jin，BAI Yan-ping，et a1

  Forensic Science And Technology. 2010, 0(1): 26.

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  Objective To study a newmethod for developing latent blood shoeprints，that is Hungarian Red．Method Using Hungarian Red solution to develop the latent blood shoeprints on the porous subjects and non-porous subjects，to compare the developing effect of the latent blood shoeprints on different subjects．Result Hungarian Red can be used tO develop the latent blood shoeprints．Conclusion Hungarian Red can develop the latent blood shoeprints on the non-porous subjects effectively．
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  The study of developing latent fingerprint with small particle reagent of ultramarine blue

  ZHANG XJao-mei

  Forensic Science And Technology. 2010, 0(1): 28.

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  Purpose：To ascertain the best proportion of Small Particle Reagent of Ultramarine Blue and its application scope． Methods：Work over the best proportion，the application scope and period of validity of the Small Particle Reagent by experimenta— tion．Results：The best proportion is dissolving 20％Ultramarine Blue and 0．1％1227 in water．Conclusions：Various substance of fingerprints on impenetrable object could be developed by the small particle reagent of the Ultramarine Blur
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  On the habits and characteristics of word-group structure in Chinese characters

  JIA Zhi—hui

  Forensic Science And Technology. 2010, 0(1): 31.

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  Word-group structure is the special structure of a whole word composed by high-frequency words in writing movement system．The writing habits of word-group that exist special characteristics that beyond the single word's characteristics of writing habits are different from single word's writing movement system．Therefore，the research on word-group and its charac— teristics are propitious to the perfection of handwriting examination characteristic system，especially for the identification of signa— ture and a few quantities of handwritings written by the person with occupational habits．