01 April 2008, Volume 0 Issue 2

    

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  Forensic analysis of cotton fibers using spectral imaging

  ZHANG Peng, WANG Guiqiang, HUANG Wei, et al.

  Forensic Science And Technology. 2008, 0(2): 3.

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  Objective To explore the capability of spectral imaging for idengtification of same colour cotton fibers.MethodsTen red colour cotton fibers, ten blue colour cotton fibers and ten black cotton fibers were analyzed by spectral imaging.ResultsThe rate of discrimination for the red fiber, blue fiber and black fiber are 62.2%, 77.8% and 69.6% respectively. ConclusionWith the spectral imaging method, most same colour cotton fibers can be identified.
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  Discrimination of windscreen glass fragments by refractive index and elemental composition

  WANG Hu,QUAN Yangke,GUO Hongling，et al.

  Forensic Science And Technology. 2008, 0(2): 6.

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  15　kinds of windscreen glass are collected and analyzed by oil immersion method and Xray Fluorescence.The data of refractive index are disposed by the SPSS(statistics program of social science ) to carry ttest.The results show that　most of windscreen glass can be distinguished by refractive index and the rest can be distinguished completely by elemental components. The combination of both methods is an effective means of discriminating windscreen glass.
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  Study of the alkaloids in Aconitum plants by RPHPLC（II）

  WANG Zhaohong, LI Hong

  Forensic Science And Technology. 2008, 0(2): 10.

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  ObjectiveTo establish aHPLC method for analysis alkaloids in Aconitum plants. MethodsXTerraTMRP18 5μm column,（250×4.6mm）; the mobile phase consisting of acetonitrile∶10mmol ammonium hydrogen carbonate buffer，a flow rate of 1.0ml/min and detection wave at 233nm. ResultsThe established method could analyze four Aconitum plants successfully. ConclusionThe results indicated that we should detect C8acetyl group and C14 anisoyl group alkaloids in forensic medicine monitoring.
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  Chip transplant　for extracting　the cell phone　fuselage information

  WEI Wei, ZHANG Guochen

  Forensic Science And Technology. 2008, 0(2): 12.

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  Objective To display the destroyed cell phone's inner information .MethodsStore telephone numbers and short messages which have obvious quantity difference respectively on the memories of two mobile telephones with the same brand and type, and take off the two memories and exchange, then observe information stored.ResultsThe inner information can be fully displayed if the storage chips are not damaged. ConclusionBy exchanging the same model chip of the phone, the integrality of memory information have been proved in a undamaged chip.
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  Extraction and analysis of “Magu” by GC/MS

  SUN Xiangtai，YANG Aimin，WANG Kuiyan，et al

  Forensic Science And Technology. 2008, 0(2): 14.

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  Methamphetamine in “Magu” was extracted with alkaline solvent and analyzed by GC/MS. The method was sienstive and simple for determination of Methamphetamine in “Magu” for forensic drug analysis.
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  Differentiation of blue rollerball pen inks by HPLC

  WANG Yuanfeng, WANG Jinghan, XU Yingjian

  Forensic Science And Technology. 2008, 0(2): 16.

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  This paper presented a study on the separation of dye mixture in rollerball pen inks and identification of the sorts of ink samples. The components in blue rollerball pen inks were analyzed by HPLC, samples were divided into different categories according to the separation results; 22 samples were successfully distinguished. Meanwhile, the effect of paper materials, the limit of detection and the repeatability of the results were also explored.
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  Development of latent fingerprint on papers by DFONinPD

  MIN Xiangguang, CHANG Bainian, MA Rongliang，et al.

  Forensic Science And Technology. 2008, 0(2): 20.

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  ObjectiveTo improve the method for development of fingerprint on paper.MethodsFingerprint on papers were treated with DFONinPD.ResultsEvery step of the procedure can improve the effect of fingerprint development.ConclusionThe DFONinPD treatment is a efficienct method for development of fingerprint on paper.
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  Determination of triazolam and its metabolites αhydroxytrazolam in rabbit　body

  Gao Yuan, TENG Yue, ZHAO ShengLin, et al.

  Forensic Science And Technology. 2008, 0(2): 23.

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  To compare different methods for detecting triazolam and its metabolites αhydroxytrazolam.Triazolam and its metabolites αhydroxytrazolam in rabbit body were detected by GC/NPD、GC/MS、MS/MS and GC/ECD respecticely. GC/ECD was the most sensitive to assay riazolam and its metabolitesαhydroxytrazolam. Urine，the stomach and their content samples　were easy to analyzed. This method was the most effective.
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  Progress on threedimensional facial reconstruction with computer technology

  XU Changmiao，LIANG　Ronghua

  Forensic Science And Technology. 2008, 0(2): 26.

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  In this paper, the development of threedimensional computer graphic for facial reconstruction was summarized, and computer graphics method was compared with traditional sculpting technique.
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  Detection of morphine in urine

  LV Hairu

  Forensic Science And Technology. 2008, 0(2): 29.

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  The paper summarized the method for the determination of morphine in human urine by chemical reaction, immune technique, TLC, HPLC, GC, CE, GC/MS, molecular imprintingchemiluminescence, which are very important for detecting drugger and could be used in diagnose the morphine dependence and eraluatethe detoxification efficiency.