IDENTIFICATION OF POLYDIMETHYLSILOXANE LUBRICANT TRACES FROM LATEX CONDOMS IN CASES OF SEXUAL ASSAULT

被引：48

作者：

BLACKLEDGE, RD ^{[1
]}

VINCENTI, M ^{[1
]}

机构：

[1] UNIV TURIN,DIPARTIMENTO CHIM ANAL,I-10125 TURIN,ITALY

来源：

JOURNAL OF THE FORENSIC SCIENCE SOCIETY | 1994年 / 34卷 / 04期

关键词：

SEX CRIMES; POLYDIMETHYLSILOXANE; NONOXYNOL-9; LUBRICANTS; CONDOMS; DESORPTION CHEMICAL IONIZATION MASS SPECTROMETRY; FOURIER TRANSFORM INFRARED SPECTROSCOPY;

D O I：

10.1016/S0015-7368(94)72928-5

中图分类号：

DF [法律]; D9 [法律]; R [医药、卫生];

学科分类号：

0301 ; 10 ;

摘要：

A polydimethylsiloxane (PDMS) liquid is used as a lubricant by many condom manufacturers. Because the use of condoms in sex crimes is likely to increase, a protocol was developed that could extract PDMS and the spermicide nonoxynol-9 from evidence items and separately identify them by Fourier transform infrared spectroscopy. Additionally, at least some discrimination was provided by microscopically identifying insoluble lubricants such as corn starch, lycopodium, silica, and talc which are added to some brands. Desorption chemical ionization mass spectrometry was used to compare the PDMS used by different manufacturers and to detect as little as 20 ng. The protocol was successfully used in two actual cases, one in which the assailant wore a lubricated condom, and a second in which he did not, but claimed to have done so.

引用

页码：245 / 256

页数：12

共 22 条

[1]

ANDERSON R, 1991, SILICON COMPOUNDS RE, P254

[2] DIRECT CHEMICAL IONIZATION OF RELATIVELY INVOLATILE SAMPLES - APPLICATION TO UNDERIVATIZED OLIGOPEPTIDES [J].

BALDWIN, MA ;

MCLAFFER.FW .

ORGANIC MASS SPECTROMETRY, 1973, 7 (12) :1353-1356

[3] MASS-SPECTRAL CHARACTERIZATION AND THERMAL-DECOMPOSITION MECHANISM OF POLY(DIMETHYLSILOXANE) [J].

BALLISTRERI, A ;

GAROZZO, D ;

MONTAUDO, G .

MACROMOLECULES, 1984, 17 (07) :1312-1315

[4]

BLACKLEDGE RD, 1994, CRIME LAB DIGEST, V21, P57

[5]

BLACKLEDGE RD, 1983, J FORENSIC SCI, V28, P451

[6]

BLACKLEDGE RD, 1994, MICROBEAM ANAL, P75

[7] FOURIER SELF-DECONVOLVED INFRARED-SPECTRA AS AN AID TO CONFORMATIONAL STUDIES ON POLYVINYL-CHLORIDE) [J].

COMPTON, DAC ;

MADDAMS, WF .

APPLIED SPECTROSCOPY, 1986, 40 (02) :239-245

[8] COMPARATIVE AND COMPLEMENTARY PLASMA DESORPTION MASS-SPECTROMETRY SECONDARY ION MASS-SPECTROMETRY INVESTIGATIONS OF POLYMER MATERIALS [J].

FELD, H ;

LEUTE, A ;

ZURMUHLEN, R ;

BENNINGHOVEN, A .

ANALYTICAL CHEMISTRY, 1991, 63 (09) :903-910

[9] CHARACTERIZATION OF PERFLUOROPOLYETHERS BY DESORPTION CHEMICAL IONIZATION AND TANDEM MASS-SPECTROMETRY [J].

GUARINI, A ;

GUGLIELMETTI, G ;

VINCENTI, M ;

GUARDA, P ;

MARCHIONNI, G .

ANALYTICAL CHEMISTRY, 1993, 65 (08) :970-975

[10] SUPERCRITICAL FLUID CHROMATOGRAPHY AND TIME-OF-FLIGHT SECONDARY ION MASS-SPECTROMETRY OF POLY(DIMETHYLSILOXANE) OLIGOMERS IN THE MASS RANGE 1000-10000 DA [J].

HAGENHOFF, B ;

BENNINGHOVEN, A ;

BARTHEL, H ;

ZOLLER, W .

ANALYTICAL CHEMISTRY, 1991, 63 (21) :2466-2469

← 1 2 3 →